2027 Property Tax Calendar
Key property tax dates by state: assessment dates, rendition and return deadlines, protest windows and payment due dates. Deadlines that fall on a weekend or holiday usually move to the next business day, and some local rules vary, so confirm with your appraisal district or contact PTP.
Texas
Appraisal districts value property as of January 1. Most deadlines below are set by the Texas Property Tax Code.
Date | Deadline |
|---|---|
January 1 | Assessment date |
April 15 | Business personal property renditions due (extension to May 15 on written request) |
April 30 | Exemption and special appraisal applications |
May 1, or soon after | Notices of appraised value mailed (homesteads: April 1) |
May 15, or 30 days after notice | Protest deadline, whichever is later |
October 1, or soon after | Tax bills mailed |
January 31 | Taxes due without penalty |
Oklahoma
County assessors value property as of January 1.
Date | Deadline |
|---|---|
January 1 | Assessment date |
March 15 | Business personal property renditions (Form 901) due (10% penalty after March 15; 20% after April 15) |
30 days after notice | Deadline to protest a notice of increased value with the county assessor |
April 1 - May 31 | County boards of equalization hear protests (Oklahoma and Tulsa counties may run through July) |
November 1 | Tax bills mailed |
December 31 | First half of taxes due |
March 31 | Second half of taxes due |
Louisiana
County assessors value property as of January 1.
Date | Deadline |
|---|---|
January 1 | Assessment date |
April 1 | Business personal property self-reports (LAT forms) due |
August 15 – September 15 | Assessment rolls open for public inspection for 15 days (Orleans Parish: July 15 – August 15) |
During or shortly after open rolls | Appeals to the parish board of review (deadline set by each parish) |
November 15 | Tax rolls certified by the Louisiana Tax Commission |
December | Tax bills mailed |
December 31 | Taxes due |
Utah
County assessors value property as of January 1. Mines, utilities and other centrally assessed property are valued by the Utah State Tax Commission.
Date | Deadline |
|---|---|
January 1 | Assessment (lien) date |
February 1 | Personal property signed statements begin mailing |
March 1 | Annual returns due for centrally assessed property (Utah State Tax Commission) |
May 15 | Personal property signed statements due (most counties; check your county) |
July 22 | Notices of valuation mailed |
September 15, or 45 days after notice | Appeal deadline to the county board of equalization, whichever is later |
By November 1 | Tax notices mailed |
November 30 | Taxes due |
Wyoming
County assessors value property as of January 1.
Date | Deadline |
|---|---|
January 1 | Assessment date |
February 15 | Pollution and fire control exemption applications due |
March 1 | Personal property declarations due |
Fourth Monday in April | Assessment schedules mailed |
30 days after schedule | Deadline to file an objection with the county assessor |
September 1 | First half of taxes due (delinquent after November 10, unless paid in full by December 31) |
March 1 | Second half of taxes due (delinquent after May 10) |
Colorado
County assessors value property as of January 1. Real property is reappraised every two years, in odd-numbered years, including 2027.
Date | Deadline |
|---|---|
January 1 | Assessment date |
April 15 | Personal property declaration schedules due (10- or 20-day extension available for a fee) |
May 1 | Real property notices of valuation mailed |
June 1 | Real property protest deadline (to the county assessor) |
June 15 | Personal property notices of valuation mailed |
June 30 | Personal property protest deadline (to the county assessor) |
July 15 / July 20 | County board of equalization appeals due, real / personal property (September 15 in counties that extend) |
Last day of February | First half of prior-year taxes due |
April 30 | Full payment due, for those not paying in halves |
June 15 | Second half of prior-year taxes due |