Missed the Guilford County Property Tax Appeal Deadline? Your Options for 2027
The formal appeal window for Guilford County’s 2026 reappraisal closed at 5 p.m. on May 15, 2026. If you didn’t file by then, the value on your notice will be the one you will be billed on this fall, and the Board of Equalization and Review will not reopen 2026 for a late appeal. You still have options, but they just work differently and have their own deadlines.
Why the 2026 Value Is Locked In
North Carolina law allows the county to change a value only in a limited number of situations after the board has adjourned. Section 105-325 of the General Statutes allows for corrections to clerical and mathematical errors, and allows the board to act on new information that the assessor has brought forward. It does not permit a simple “the number is too high” appeal after the deadline.
The 2026 bill is still outstanding and interest will begin to accrue on January 6, 2027. An appeal in 2027 will not pause collection for this year.
Option 1: File a 2027 Appeal by May 15
The Board of Equalization and Review hears appeals every year. The appeal period for Guilford County runs from January 1 to May 15. A successful 2027 appeal reduces your value for that year and every year thereafter until the next county-wide reappraisal.
There is a catch. In a non-reappraisal year, the question is not what your home will sell for in 2027. Under Section 105-287, the value can only be adjusted to correct an error in how the 2026 schedule of values was applied, to fix a mistake in the property record, or to recognize a physical change to the property. A softer market in 2027 won’t help you.
A strong 2027 appeal typically includes:
- Sales of comparable homes in your area that closed near January 1st, 2026
- Errors in the county records, such as incorrect square footage or a listed finished basement
- Photos and contractor estimates for any condition problems that were present on the re-appraisal date
- An independent appraisal with an effective date close to January 1st, 2026. This has more weight with the board than many owners expect
Option 2: Request a Correction Outside the Appeal Window
Some problems don’t need an appeal at all. If a county’s records list a building that no longer stands, the acreage you do not own, or an arithmetic error occurs, the county can correct it under the same statute at any time. Write a request to the Tax Department. If a correction raises your value rather than lowering it, you are entitled to notice and the chance to be heard first.
Option 3: Ask for a Refund of an Illegal or Clerical-Error Tax
This one is narrow. Section 105-381 allows you to demand a refund of taxes you’ve already paid if they were imposed through clerical error, were illegal, or were levied for an illegal purpose. The request goes to the county commissioners, who have 90 days to respond, and it must be filed within five years after the tax first became due or six months after payment, whichever is later.
A disagreement over value is not a clerical error. The North Carolina Court of Appeals read that term to mean an unintended mistake apparent on the face of the record, not an appraiser’s judgement call.
Option 4: Report Physical Changes Before January
Storm damage, a fire, or demolition after January 1, 2026 did not affect this year’s value, but they should affect next year’s. Please report the change to the Tax Department during the January 2027 listing period, so that the 2028 value reflects what is actually there.

Get Your 2027 Appeal on the Calendar Now
The assessed value of your Guilford County home affects more than just your tax bill. It also shows up in refinancing, insurance, and equitable distribution when a court needs to assign a number to the house in a divorce case.
At the Law Office of Stephen E. Robertson PLLC, our Greensboro attorneys bring more than 25 years of collective experience to protect what families own. This includes making sure that the county number is correct. If you missed the May deadline, contact our office before the January 2027 listing period begins.