Washington County Property Tax Appeal Guide
In Washington County, file your appeal by Kansas gives a homeowner two mutually exclusive paths and you may use only one for a given property and tax year. (1) Equalization appeal: appeal the spring Valuation Notice by giving notice to the county appraiser within 30 days after the notice is mailed, which triggers a mandatory informal meeting with the county appraiser; if still aggrieved, file with the small claims and expedited hearings division or the regular division of the Board of Tax Appeals within 30 days after the informal-meeting result is mailed. (2) Payment under protest: if you did not file an equalization appeal, file a written protest with the county treasurer at the time the taxes are paid, or — if the taxes are paid from an escrow or tax-service agent before December 20 — no later than December 20; the protest then proceeds to an informal meeting with the county appraiser and, if unresolved, to the Board of Tax Appeals within 30 days of the informal result. at Washington County Appraiser's online portal.
| Deadline | Kansas gives a homeowner two mutually exclusive paths and you may use only one for a given property and tax year. (1) Equalization appeal: appeal the spring Valuation Notice by giving notice to the county appraiser within 30 days after the notice is mailed, which triggers a mandatory informal meeting with the county appraiser; if still aggrieved, file with the small claims and expedited hearings division or the regular division of the Board of Tax Appeals within 30 days after the informal-meeting result is mailed. (2) Payment under protest: if you did not file an equalization appeal, file a written protest with the county treasurer at the time the taxes are paid, or — if the taxes are paid from an escrow or tax-service agent before December 20 — no later than December 20; the protest then proceeds to an informal meeting with the county appraiser and, if unresolved, to the Board of Tax Appeals within 30 days of the informal result. |
|---|---|
| Lien date | January 1, 2026 |
| Appeal body | Board of Tax Appeals (BOTA) |
| Assessor / district | Washington County Appraiser |
| Online portal | File online |
How to File a Appeal in Washington County
- Gather your assessment notice — it lists your account number and any access code
- File online through Washington County Appraiser's portal or by mail
- State your grounds and submit evidence (comparable sales, a licensed appraisal, or photos of defects)
- Request an informal review to try to settle before a formal BOTA hearing