Sullivan County Property Assessor 2026: Search & Tax Records

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Sullivan County TN Property Records Navigator

Search Sullivan County Property Assessments, Parcel Maps, Values & Tax Records

The Sullivan County Assessor of Property handles property appraisal, ownership records, classification, assessment maps, Greenbelt and Forestry assessments and the tax roll. The Sullivan County Trustee separately sends and collects county property taxes, while the Register of Deeds maintains recorded real-property documents.

This 2026 guide shows how to search Tennessee Property Assessment Data by owner, address or Parcel ID; decode Control Map, Group and Parcel fields; understand Tennessee’s 25% residential assessment ratio; review the post-2025 reappraisal record; handle assessment appeals; use Greenbelt; verify the annual tax bill; avoid March 1 delinquency; and search deeds and plats.

Search 2026 owner, address and Parcel ID records
Decode 25%, 30%, 40% and 55% assessment ratios
Understand 2025 reappraisal → 2027 reappraisal cycle
Separate Assessor values from Trustee tax collection
Search Property Records Property Assessor Tax Bill & Payment Sullivan GIS Map
Property Assessor Donna Whitaker
Assessor phone 423-323-6455
Assessor office 3411 Hwy. 126, Suite 103
Next reappraisal 2027
Last reviewed August 11, 2026
August 2026 property-owner position

What Sullivan County Property Owners Should Know Right Now

2026 is between Sullivan County’s 2025 and 2027 countywide reappraisals. The Tennessee Property Assessment Data system currently displays Sullivan County records for Tax Year 2026 and identifies 2025 as the reappraisal year on current parcel records. Sullivan County’s Assessor says the next countywide reappraisal is scheduled for 2027.
Search 2026 assessment now Current Tennessee Property Assessment Data includes 2026 Sullivan County ownership, market appraisal, assessment percentage, parcel fields and property characteristics.
Regular local appeal season has normally passed Tennessee County Boards of Equalization generally convene in June. If you already received a County Board decision, a State Board appeal can still have a deadline tied to the date that decision was mailed.
2026 tax collection comes later Sullivan tax notices are normally mailed in late September and county taxes become payable in October. Do not confuse the 2026 assessment with a tax bill that has not yet entered its normal collection period.
2026 tax-rate caution: At this review, the Sullivan County Trustee’s public FAQ still labels $1.6129 per $100 of assessed value as the 2025 county rate. Do not silently treat that figure as the confirmed 2026 levy. Verify the current rate on the 2026 tax notice or with the Trustee once the new tax roll is billed.
Understand the office-name difference

Tennessee “Property Assessor” vs Florida “Property Appraiser”

Tennessee and Florida use different titles for the local office that values real estate. Sullivan County uses an elected Assessor of Property. Florida normally uses an elected Property Appraiser.

For comparison, our existing Duval County Property Appraiser search guide shows the Florida structure. Sullivan County instead routes tax collection to the County Trustee and assessment appeals through Tennessee’s County and State Boards of Equalization.

Right office = faster answer

Who Handles What in Sullivan County?

Property Assessor Owner and parcel records, classification, appraised value, assessed value, tax maps, Greenbelt, Forestry, personal property and assessment corrections.
County Trustee County property-tax bills, payment, partial payments, delinquent interest, tax relief vouchers and tax-collection records.
Register of Deeds Recorded deeds and other legal documents affecting real property.
Boards of Equalization County Board handles the normal first administrative assessment appeal; eligible further appeals go to Tennessee’s State Board of Equalization.
The Assessor does not set the property-tax rate, mail the county tax bill or collect the tax. Sullivan County states those functions belong elsewhere in the tax process.

Choose Your Sullivan County Property Task

Find a parcel Search the Tennessee Property Assessment Data system by owner, property address or Parcel ID.
Check value Review land market value, improvement value, total market appraisal and assessed value.
Research map or zoning Use Control Map, Group and Parcel information with the Sullivan County GIS map.
Appeal assessment Contact the Assessor first, then preserve County Board or State Board appeal deadlines when applicable.
Pay property tax Use the Sullivan County Trustee for the actual bill, online payment, partial payment and delinquency.
Find a deed Use the Register of Deeds when you need legal ownership documents rather than an assessment record.

Jump to Your Sullivan County Property Task

Understand the Tennessee parcel key

Control Map, Group, Parcel and Special Interest Explained

Sullivan County records in the state system can identify property using several linked fields instead of a single short account number.

Control Map Main assessment-map identifier. Advanced Search allows three numbers plus optional letters.
Group Optional map subdivision represented by up to two letters.
Parcel Parcel portion of the identifier, commonly shown with a decimal format.
Special Interest Additional interest field where applicable on a Tennessee parcel.
Parcel ID Combined identifier used to locate the full assessment record.
Example format only: A Tennessee record may visually separate Map, Group and Parcel while also presenting one Parcel ID. Copy the actual Sullivan County identifier exactly from your property record rather than rebuilding it manually.

Six Checks Before You Trust a Sullivan Property Result

Parcel ID Exact property key.
Jan. 1 owner Tax-year owner record.
Location Match situs address.
Class Residential, farm, commercial etc.
Tax year Confirm 2026 record.
Assessment % Match property class.
Recent purchase? The January 1 ownership date matters in Tennessee assessment and tax administration. A buyer who closes later in the year should also review the recorded deed and closing statement rather than assuming the online tax-year owner field will immediately reflect the new transaction.
Tennessee parcel-details decoder

What Sullivan County Assessment Record Fields Mean

Field Meaning What to check
January 1 Owner Owner reflected for the statutory January 1 assessment date. Use recorded deed records for recent transfers.
Property Location Physical address associated with the parcel. Compare with GIS and legal description.
Control Map / Group / Parcel Components of the state assessment parcel identifier. Copy each exactly when calling the Assessor.
Land Market Value Market appraisal assigned to land. Review acreage, land code, location and Greenbelt status.
Improvement Value Appraised value assigned to buildings and improvements. Review square footage, age, quality and features.
Total Market Appraisal Combined appraised market value before statutory assessment percentage. Compare with market evidence when disputing value.
Assessment Percentage Statutory ratio based on Tennessee property classification. Residential/farm usually 25%; other classes differ.
Assessment Taxable assessed amount before applying the local tax rate and applicable tax-relief programs. Do not confuse assessment with tax due.
Subdivision / Plat Subdivision, plat book/page, block and lot information where available. Use the Register of Deeds for the actual recorded plat/document.
Class Property classification used for assessment. Classification affects the assessment ratio.
City / District Municipal or county district information associated with the record. City taxes can be separate from Sullivan County tax.
Sales Recorded sale history, deed book/page and qualification information when available. Not every transfer is a qualified market sale.
Assessment map + zoning context

How to Use the Sullivan County GIS Zoning Map

The Sullivan County Property Assessor links directly to the county’s ArcGIS mapping application, while Planning and Codes also identifies the GIS zoning map as the county’s interactive zoning resource.

Find the parcel first. Copy the Control Map, Group, Parcel ID and property location from Tennessee Property Assessment Data.
Open the Sullivan GIS Map. Use the county-linked GIS map.
Locate the property. Compare road position, parcel context and nearby tracts.
Turn zoning information on when useful. The county explains that users can turn the zoning layer on or off and adjust its transparency.
Use the map as a research layer—not a survey. Confirm exact boundaries through deed, plat and survey documents.
Contact Planning and Codes for official land-use questions. Zoning compliance, building permits, floodplain questions and development rules are handled separately from property assessment.
Map warning: An online tax or zoning map is not legal evidence of a boundary, easement, acreage or buildable area. Use a registered surveyor and recorded documents when exact property rights matter.
Tennessee assessment math

How Sullivan County Converts Market Value Into Assessed Value

A $400,000 house is not taxed on a $400,000 assessed value

Tennessee law applies an assessment ratio based on property classification. Residential and farm real property are normally assessed at 25% of appraised market value.

Example: $400,000 market appraisal × 25% = $100,000 assessed value.

The applicable county and, where relevant, municipal tax rate is then applied per $100 of assessed value.

25% Residential
25% Farm real property
40% Commercial / Industrial
30% Business personal property
55% Public utility
Do not compare a Tennessee “Assessment” directly with a real-estate listing price. The assessment field is intentionally a percentage of appraised value.
2025 → 2026 → 2027

How Sullivan County’s Reappraisal Cycle Affects 2026 Records

Sullivan County completed a major reappraisal for 2025. Current 2026 Tennessee assessment records identify 2025 as the reappraisal year, and the Sullivan County Assessor states that the next countywide reappraisal is scheduled for 2027.

Pre-reappraisal year Earlier market conditions and older county values formed the comparison point.
Countywide reappraisal Sullivan property values were updated for the reappraisal cycle.
Current tax year State property data carries forward the post-reappraisal base while processing ownership and property changes.
Next reappraisal Sullivan County identifies 2027 as the next countywide reappraisal.
Record maintenance New construction, demolition, splits, sales, classification and corrections can still affect records between countywide reappraisals.
Value increase does not automatically equal the same percentage tax increase. A countywide reappraisal and the tax-rate-setting process are separate. Tennessee’s certified-rate rules are designed to prevent a reappraisal alone from automatically generating the same percentage increase in overall tax revenue.
Tennessee assessment appeal ladder

How to Appeal a Sullivan County Property Assessment

1. Review property record Confirm market value, classification, land, building data and sales before disputing the number.
2. Assessor informal review Contact Sullivan County Property Assessor and explain the specific error or evidence.
3. County Board Tennessee’s County Board of Equalization is generally the first formal administrative appeal level.
4. State Board Eligible County Board decisions can be appealed to Tennessee’s State Board of Equalization.
5. Further review Additional administrative and court review may be available after statutory appeal rights are exhausted.
Download or print the 2026 parcel record. Save market appraisal, assessment, classification, land, improvement and sales information.
Identify the exact issue. Common grounds include excessive value, incorrect classification or unequal assessment.
Gather market and property evidence. Use qualified comparable sales, photographs, appraisals, repair estimates, construction records, acreage documentation or classification evidence.
Ask the Assessor for informal review. Informal review can sometimes correct obvious issues without a formal hearing.
Preserve the County Board deadline. Tennessee says informal review is not the same as a formal appeal. Contact the Assessor for the current Sullivan County Board filing schedule.
Appeal further when eligible. Tennessee’s general State Board deadline is August 1 or 45 days after the County Board decision notice, whichever is later.
August 11, 2026: The ordinary statewide August 1 State Board deadline has passed. However, a taxpayer who received a County Board decision later can still have the separate 45-day rule, and Tennessee recognizes limited exceptions for certain notice, correction and reasonable-cause situations. Do not assume your rights are over without checking the date and type of notice.
Best next action for a 2026 dispute now: Call Sullivan County Property Assessor at 423-323-6455 with the Parcel ID and notice date. If a County Board decision was already issued, compare its mailing date with the State Board’s 45-day rule immediately.
Tennessee Value Appeals Review the current County Board → State Board appeal process, statutory exceptions and filing information.
Agricultural • Forest • Open Space

Sullivan County Greenbelt Property Assessment

Tennessee’s Greenbelt program values qualifying agricultural, forest and open-space land based on its qualifying current use rather than its potentially higher unrestricted market-development value. Sullivan County’s Property Assessor administers the program locally, and Tennessee has approved a Sullivan County-specific Greenbelt application.

Agricultural land Generally at least 15 acres and actively qualifying as an agricultural unit under Tennessee law.
Forest land Generally at least 15 acres and managed as a qualifying forest unit; forest-management requirements can apply.
Open space Generally at least three acres in a qualifying designated open-space area.
Greenbelt issue Tennessee rule What Sullivan owner should do
First application March 15 deadline File with Sullivan County Property Assessor.
Approved application Must be recorded Pay the required Register of Deeds recording fee.
Late continuation after disqualification notice May be accepted within 30 days of notice with $50 late fee Contact Assessor immediately and pay late fee to Trustee when applicable.
Agricultural / forest rollback Generally preceding three years Request Assessor calculation before changing qualifying use.
Open-space rollback Generally preceding five years Understand potential recapture before development or disqualification.
Buying Greenbelt property? Do not assume the low use-value assessment will automatically continue after the sale or change in use. Ask the Assessor what must be filed and request an estimate of potential rollback exposure before closing.
Tennessee Greenbelt Rules Review application timing, acreage rules, rollback taxes and appeal rights.
Keep assessment mail current

How to Change a Sullivan County Property Mailing Address

Sullivan County maintains a Property Assessor Change of Address Form. Updating the mailing record matters because assessment-change and other property notices can be time-sensitive.

Search your current property record. Save the Parcel ID and current owner information.
Check the current mailing address. Compare the Tennessee Property Assessment Data record with your actual mailing address.
Open Sullivan County’s Change of Address Form. Use the official Property Assessor document rather than sending an informal social-media request.
Provide the correct parcel and owner information. Incomplete identification can delay the update or cause the wrong account to be researched.
Confirm the change later. Recheck the 2026 or subsequent online record to ensure the mailing address was updated.
Open Sullivan Change of Address Form Use the official Property Assessor form and follow the current submission instructions.
Business furniture & equipment

Sullivan County Business Personal Property Assessments

Business tangible personal property is assessed separately from residential real estate. Tennessee’s normal assessment ratio for business personal property is 30%.

February 1 Personal Property Schedules are normally mailed to business owners by this date.
March 1 Schedules should normally be returned to the Assessor by this date.
Missing schedule Sullivan’s Trustee FAQ warns that failure to return the schedule can result in the Assessor making a forced assessment.
Closed business? Do not simply ignore the tax bill. Sullivan says a business operating on January 1 can still be assessed for that tax year. Notify the County Clerk and the Assessor’s Personal Property section when the business closes.
Personal Property contacts: Sullivan’s Trustee FAQ lists Property Assessor Personal Property at 423-279-7591 or 423-323-6459.
County Trustee collection workflow

How Sullivan County Property Taxes Are Billed and Paid

The Assessor prepares the assessment roll. The Sullivan County Commission establishes the county tax rate. The Trustee receives the tax roll, mails courtesy notices and collects county property taxes.

Assessment date Ownership records, assessment and maps reflect property status for the tax year.
Courtesy tax notices Trustee generally mails county tax notices during the last week of September.
Payment period opens Current county taxes become due and payable.
Timely-payment cutoff County taxes can be paid without delinquent interest through the last day of February.
Delinquent Unpaid county tax begins accruing 1.5% interest per month.
Find the parcel and assessed value first. Use the Assessor/state database to make sure you are working with the correct property.
Open the Sullivan County Trustee property-tax page. Use Sullivan County Trustee Property Taxes.
Open the official online payment portal. The Trustee routes electronic payments through its current third-party payment provider.
Verify the tax identification number for the current tax year. The Trustee warns that tax identification numbers can change from year to year, so old bank bill-pay information should not be reused blindly.
Check the property owner and tax year. Make sure the payment is being applied to the intended parcel and year.
Choose payment method. Current online convenience fees are 2.5% for credit/debit cards and $1.25 for electronic checks.
Save the electronic confirmation. Sullivan recognizes the payment date shown on the electronic confirmation as the official payment date.
Recheck posting. The Trustee says payments are normally posted to the official tax record within five business days.
Credit / debit 2.5% current convenience fee through the payment clearinghouse.
Electronic check $1.25 current fee per property transaction.
Phone payment Phone transactions can carry an additional processing charge; confirm the amount before final authorization.
No early-payment discount: Sullivan County’s current Trustee FAQ states that the county does not presently offer an early-payment discount.
Use the rate for the correct year

How to Estimate a Sullivan County Property Tax Bill

Property tax is calculated from appraised market value → statutory assessment ratio → assessed value → applicable tax rate.

Residential example using 2025 county rate only $250,000 appraised value × 25% = $62,500 assessed value.

$62,500 ÷ 100 × $1.6129 = approximately $1,008 county tax before any separate municipal tax or other applicable charge.
Why this is not a 2026 quote The $1.6129 figure is the Sullivan Trustee’s currently published 2025 county rate. Use the 2026 tax bill/rate once it is officially posted for a current-year calculation.
Inside Bristol or Kingsport? Municipal property tax can be separate from the Sullivan County levy. Do not assume the county tax alone is the complete property-tax cost for a parcel inside a city.
More flexible than one annual payment

Partial Payments and Monthly Prepayments

Partial payments Sullivan allows taxpayers to make multiple partial payments between October and the end of February without delinquent interest.
No monthly bill The taxpayer is responsible for tracking the remaining balance. The Trustee does not send monthly installment statements.
ACH prepayment Sullivan also offers a prepayment option using monthly ACH drafts toward upcoming property taxes. Contact the Trustee for enrollment details.
Trustee: 423-323-6464. Ask specifically whether you need “partial payments on the current tax” or the separate “ACH prepayment plan for upcoming taxes.”
March 1 changes the account

What Happens When Sullivan County Property Tax Is Late?

County property taxes become delinquent on March 1 after the normal payment period. Sullivan’s Trustee states that delinquent county taxes accrue 1.5% interest per month.

Illustration only: Do not use this chart to calculate an actual delinquent payoff. Contact the Trustee or use the live tax account because collection status and other costs can affect the amount due.
Missed tax notice? Tennessee law does not require a Trustee to mail an annual notice. Sullivan explicitly states that failure to receive the courtesy bill does not remove the owner’s payment responsibility or allow the Trustee to waive statutory interest.
Closing-table issue

Who Pays Sullivan County Taxes When Property Is Sold Mid-Year?

The Trustee explains that the tax roll and notice are tied to property ownership for the tax-year process, while buyer/seller tax prorations in a settlement statement are private closing arrangements.

Check the closing statement Determine whether the seller gave the buyer a tax credit at closing.
Do not assume title company will pay A closing credit can mean the buyer received money for future tax but the closing agency will not separately send that payment to the Trustee.
New owner still needs to verify payment Search or contact the Trustee when the annual collection period opens even if the prior owner appears on the tax notice.
Mortgage escrow: If a lender is responsible for the property-tax payment, verify that the lender has the correct current-year tax account rather than making a duplicate payment yourself.
State benefit administered locally

Sullivan County Property Tax Relief vs Tax Freeze

Tennessee Property Tax Relief This state-funded program can reimburse qualifying low-income elderly or disabled homeowners and qualifying disabled veterans or surviving spouses for part or all of eligible property tax. Applications are handled through collecting officials such as the Sullivan County Trustee.
Property Tax Freeze This is a different local-option program that freezes a qualifying senior homeowner’s tax at a base amount. Sullivan County’s current Trustee FAQ says the County Commission has not adopted a county Property Tax Freeze program.
Income limits change by tax year. Do not reuse an old Sullivan County income threshold for a new application. Use Tennessee’s current Tax Relief brochure and the Trustee’s current-year application guidance.
Tax Relief questions: Sullivan’s Trustee lists 423-323-6470 and 423-323-6469 for tax-relief assistance.
2026 Tennessee Property Tax Relief Check the current brochure, eligibility rules and application information.
Legal real-property records

Where to Search Sullivan County Deeds and Recorded Property Documents

The Property Assessor maintains ownership records for assessment purposes, but the Register of Deeds is the constitutional office that records legal documents pertaining to real property.

Find the parcel in Tennessee Property Assessment Data. Save owner name, Parcel ID, subdivision and any deed book/page information visible in sale history.
Open Sullivan County Register of Deeds information. Start from the official county Register of Deeds page.
Use the county-linked online title-search system. The Register currently links users to its external document-search provider for online record research.
Search grantor/grantee names or book/page. Use prior-owner information when necessary.
Compare the legal description. Do not rely solely on the tax address to decide whether a deed belongs to the same parcel.
Order or obtain the appropriate copy when needed. Ask the Register about current recording or copy charges rather than relying on an old fee schedule.
Register of Deeds Sheena Tinsley
3411 Hwy. 126, Suite 101
Blountville, TN 37617

423-323-6420
Mon–Fri, 8:00 a.m.–4:30 p.m.
Use professional title help when needed A public-record search can locate documents but does not determine lien priority, insurability, boundary rights or marketable title.

Sullivan County Property Assessor, Trustee & Register Offices

Property Assessor Donna Whitaker
3411 Hwy. 126, Suite 103
Blountville, TN 37617

423-323-6455
Fax: 423-279-2808
Mon–Fri, 8:00 a.m.–5:00 p.m.
Trustee — Blountville Angela Taylor
3411 TN-126, Suite 104
Blountville, TN 37617

423-323-6464
Open year-round
Mon–Fri, 8:00 a.m.–5:00 p.m.
Register of Deeds Sheena Tinsley
3411 Hwy. 126, Suite 101
Blountville, TN 37617

423-323-6420
Mon–Fri, 8:00 a.m.–4:30 p.m.
Trustee — Bristol 801 Anderson St., Room 139
Bristol, TN 37620

423-354-7037
Seasonal: Oct. 1–Mar. 13
Thu–Fri, 8:00 a.m.–5:00 p.m.
Lunch closure: 1:30–2:30 p.m.
Trustee — Kingsport 225 W. Center St., Suite 101
Kingsport, TN 37660

423-354-7036
Seasonal: Oct. 1–Mar. 13
Mon–Wed, 8:00 a.m.–5:00 p.m.
Lunch closure: 1:30–2:30 p.m.
Planning & Codes 3425 Highway 126, Suite 101
Blountville, TN 37617

423-323-6440
Mon–Fri, 8:00 a.m.–5:00 p.m.
Calling the Assessor? Have the Parcel ID, Control Map, Group, Parcel, owner name, property location and specific field you are questioning. Avoid starting with only “my taxes went up” because the Assessor does not set the tax rate.

Sullivan County Property Record Checklist by Situation

Situation Records to check Best next step
Homebuyer Parcel record, deed, sales, assessment, GIS, zoning, tax bill and closing proration. Verify the county and city tax obligations independently.
Current homeowner 2026 market appraisal, assessed value, mailing address and tax record. Correct errors before the next 2027 reappraisal cycle.
Assessment appellant Change notice, 2026 parcel details, comparable sales and County Board decision if already appealed. Check whether any State Board deadline is still open.
Farm owner Acreage, land classification, Greenbelt application and rollback exposure. Discuss use-value status before sale, subdivision or change of use.
Business owner Personal Property Schedule, business status and 30% assessment. Do not ignore a bill after closing the business.
Senior / disabled owner Primary residence, income documents and current Tennessee Tax Relief eligibility. Contact Trustee; Sullivan does not currently publish a county Tax Freeze program.
Recent seller/buyer Closing statement, January 1 owner, deed and annual tax notice. Confirm who will physically submit the tax payment.
Delinquent taxpayer Live Trustee balance and interest through payment date. Request a current payoff instead of paying the original bill.

Sullivan County Property Search Problems and Fixes

Problem Practical fix Right office/tool
Owner search gives nothing Try surname only, initials, trust/company name or property address. TN Property Assessment Data
Address fails Use only the main street name or switch to Parcel ID. TN Property Assessment Data
Wrong owner after recent sale Check the recorded deed and remember the tax-year record emphasizes January 1 ownership. Register / Assessor
Building square footage looks wrong Provide permits, plans, measurements or photographs. Property Assessor
Assessment is only 25% of market value That is normally the statutory residential/farm assessment ratio. Assessor / Comptroller
Market appraisal seems excessive Gather qualified comparable sales and contact Assessor; check appeal status immediately. Assessor / BOE
Need zoning Use Sullivan GIS and verify with Planning & Codes. GIS / Planning
Need exact property boundary Use recorded deed/plat plus professional survey rather than tax-map lines. Register / Surveyor
Tax bill never arrived Contact Trustee or search/pay online; missing notice does not eliminate tax liability. Trustee
Need current delinquent amount Request live balance including monthly interest. Trustee
Greenbelt land sold or developed Ask Assessor about continuation and potential rollback taxes before transaction. Property Assessor
Closed business still receives personal-property bill Confirm January 1 business status and formally notify County Clerk and Assessor Personal Property. County Clerk / Assessor
“I’m calling about Sullivan County Parcel ID __________, Control Map __________, Group __________, Parcel __________ at __________. The 2026 state property record shows a market appraisal of __________ and assessed value of __________. My concern is __________. I have __________ as supporting evidence. Is this something your office can correct, or do I need an appeal or another county office?”
Official live-action routes

Sullivan County Property Assessor & Tax Action Center

Use these official routes once you know the parcel and task.

Search Parcel Owner, address, Parcel ID, subdivision, class, sales and values. Open GIS Parcel context and Sullivan County zoning layer. Pay Property Tax Current taxes, partial payments, fees and delinquency. Search Deed Records Recorded legal documents affecting Sullivan County real property.
Sullivan County 2026 answers

Sullivan County Property Assessor 2026 FAQs

1. How do I search Sullivan County TN property assessor records?

Use the Tennessee Comptroller’s Tennessee Property Assessment Data system and select Sullivan County. You can search by property address, owner name or Parcel ID. Advanced Search also supports subdivision, classification, sale-date range, Control Map, Group and Parcel fields.

2. Who is the Sullivan County Property Assessor in 2026?

Donna Whitaker is the Sullivan County Assessor of Property. The office is at 3411 Highway 126, Suite 103, Blountville, Tennessee 37617, and the main telephone number is 423-323-6455.

3. Why is my Sullivan County residential assessment only 25% of market value?

Tennessee normally assesses residential and farm real property at 25% of appraised market value. Commercial and industrial real property are normally assessed at 40%, business personal property at 30% and public utility property at 55%.

4. Was Sullivan County property reappraised for 2026?

The current 2026 Tennessee assessment database identifies Sullivan County’s reappraisal year as 2025. Sullivan County’s Assessor states that the next countywide reappraisal is scheduled for 2027. Individual records can still change between reappraisals because of construction, demolition, parcel changes, ownership or corrections.

5. Can I still appeal my 2026 Sullivan County assessment in August?

The ordinary County Board of Equalization period generally occurs in June, and Tennessee’s general State Board deadline is August 1 or 45 days after the County Board decision notice, whichever is later. As of August 11, the ordinary August 1 date has passed, but taxpayers with later County Board decisions or certain statutory exceptions may still have rights. Contact the Assessor immediately.

6. When are Sullivan County property taxes due?

The Sullivan County Trustee generally mails courtesy tax notices in late September. County taxes become payable beginning with the first Monday in October and can normally be paid without delinquent interest through the last day of February. Unpaid taxes become delinquent March 1.

7. What interest is charged on delinquent Sullivan County property tax?

The Sullivan County Trustee currently states that delinquent county property taxes begin accruing 1.5% interest per month on March 1. Use the live Trustee balance for an exact payoff rather than calculating from the original bill yourself.

8. What is the Sullivan County property-tax rate for 2026?

At this guide’s August 11, 2026 review, the Trustee’s public FAQ still labels $1.6129 per $100 of assessed value as the 2025 county rate rather than a confirmed 2026 rate. Use the 2026 tax notice or Trustee’s updated rate once published instead of assuming the prior-year rate applies.

9. How does Greenbelt work in Sullivan County?

Qualifying agricultural, forest and open-space land can be assessed at use value rather than unrestricted market value. First-time Greenbelt applications are normally due March 15. Sullivan County has a state-approved county-specific application, and disqualification can create rollback-tax consequences.

10. Where do I find Sullivan County deeds and recorded property documents?

Use the Sullivan County Register of Deeds. The office is at 3411 Highway 126, Suite 101, Blountville, Tennessee 37617, phone 423-323-6420. The Register is the official record keeper for legal documents pertaining to real property.

Official Sources & Editorial Verification

Sullivan County Property Assessor Assessor, office contacts, responsibilities, reappraisal cycle and official property-resource links. Tennessee Property Assessment Data 2026 owner, address, parcel, market appraisal, assessment and property-detail search. Tennessee Assessment Ratios Residential, farm, commercial, industrial, personal-property and utility ratios. Tennessee Assessment Appeals County Board, State Board, deadlines and administrative appeal rights. Sullivan County Trustee Tax notices, payment methods, partial payments, convenience fees, offices and delinquency. Sullivan Register of Deeds Official real-property documents, office contact and online search route.
What was checked: current Property Assessor, assessor office contact, 2026 state parcel database, 2025 reappraisal year, next 2027 county reappraisal, owner/address/Parcel ID search fields, advanced search fields, statutory assessment percentages, appeal structure, Greenbelt filing and rollback rules, Trustee payment dates, partial payments, online fees, delinquent interest, current Tax Freeze status, Trustee branch locations, Register of Deeds contact and GIS zoning map.
Freshness note: The Trustee’s currently indexed FAQ still identifies $1.6129 as the 2025 Sullivan County rate. This guide deliberately does not relabel it as a 2026 rate. Confirm the 2026 levy when the current-year tax roll and notice are available.

CountyPropertyAppraiser.org is an independent informational website. It is not affiliated with Sullivan County Government, the Sullivan County Property Assessor, Sullivan County Trustee, Sullivan County Register of Deeds, Tennessee Comptroller of the Treasury, State Board of Equalization, ArcGIS or any payment or document-search vendor.

Property values, ownership data, reappraisal schedules, tax rates, appeal deadlines, Greenbelt qualifications, tax-relief income limits, convenience fees, office schedules and online systems can change. Confirm time-sensitive information directly with the responsible government office before paying taxes, filing an appeal, purchasing property or making legal or financial decisions.

Editorial verification date: August 11, 2026.

Slug: sullivan-county-tn-property-assessor

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Your preparation checklist

Value term Simple meaning
Market value The appraiser’s estimate of the property’s value as of the assessment date.
Assessed value The value after limits or caps may be applied.
Exemptions Approved reductions such as homestead or other exemptions.
Taxable value The value used by taxing authorities after exemptions.

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