Spring 2026 Property Tax Appeal Guide: Beat the May Deadlines
TL;DR
Spring is peak property tax appeal season. Most assessment notices arrive between February and May, and the majority of appeal deadlines fall in April, May, and June. If you received your notice and the number looks wrong, you likely have weeks, not months, to act. This guide walks you through everything you need to do this spring to file a successful appeal before your deadline closes.
Why Spring Is the Most Important Season for Property Taxes
More property tax appeal deadlines fall in the spring than any other time of year. Assessment notices flood mailboxes from February through May across most of the country. The appeal windows that follow are tight, typically 30 to 90 days.
Here are the major spring deadlines for 2026:
| State | Notices Arrive | Appeal Deadline |
|---|---|---|
| Ohio | January-February | March 31 |
| New Jersey | February | April 1 |
| Michigan | February | March Board of Review (by March 31) |
| Minnesota | March | April 30 (Open Book) |
| Georgia | April-May | 45 days from notice |
| Texas | April | May 15 or 30 days after notice |
| Wisconsin | April | Board of Review (typically May) |
| Colorado | May | June 1 |
| New York | January-May | Grievance Day (3rd Tuesday in May) |
| Indiana | March-April | June 15 (informal) |
If your state is on this list, your window is open right now or closing soon.
The Spring Appeal Playbook
Week 1: Review and Research
The moment your notice arrives, start here:
- Record the appeal deadline. Write it down in three places. Set phone reminders.
- Check your property details. Square footage, lot size, bedrooms, bathrooms, year built, features. Read our guide on understanding your notice if you are not sure what to look for.
- Pull comparable sales. Find 3-5 recent sales of similar homes within half a mile. Note sale price, size, age, and condition.
- Check neighbor assessments. Look up assessed values for similar homes nearby on your county assessor's website.
Week 2: Build Your Case
- Organize your comps. Create a clean comparison showing each comp's sale price, square footage, price per square foot, and how it compares to your assessment.
- Document condition issues. Take dated photos of any problems that reduce your home's value.
- Get repair estimates for major issues (roof, foundation, HVAC, etc.).
- Prepare a one-page summary with your parcel number, current assessment, your opinion of value, and the key evidence supporting your position.
Week 3: File
- Complete the appeal form. Available from your county assessor's office or website.
- Attach all evidence. Comps, photos, estimates, and your summary.
- Submit early. Do not wait until the last day. File at least a week before the deadline if possible.
- Keep proof of filing. Certified mail receipt, online confirmation, or a stamped copy from the office.
Spring-Specific Challenges
Limited Winter Sales Data
If your assessment is based on a January 1 valuation date and you are appealing in March or April, you may find fewer comparable sales from the winter months. Home sales slow in December and January in many markets.
Solution: Expand your search window to the previous 12 months. Most review boards accept sales from the prior year. Focus on the most comparable properties regardless of the season they sold.
Rising Market Confusion
In a rising market, the assessor will argue that prices have gone up and your assessment reflects that. You need to distinguish between broad market trends and your specific property's value.
Strategy: Focus on hyper-local comps. A home two streets over that sold for less than your assessment is more persuasive than a county-wide price index showing appreciation.
Assessment vs. Tax Bill Timing
Your assessment notice shows the value. Your tax bill, which shows what you actually owe, comes later. Some homeowners wait for the bill before acting, but by then the appeal deadline has passed. Appeal based on the assessment notice, not the bill.
States With Spring Appeal Deadlines: What You Need to Know
Texas (May 15 or 30 Days After Notice)
Texas has one of the most active protest systems in the country. Your appraisal district sends a "Notice of Appraised Value" in April. You have until May 15 or 30 days after the notice date, whichever is later. File a protest with your county appraisal review board. Texas allows informal hearings first, which resolve many cases. Full Texas appeal guide.
New York (Grievance Day, Typically Third Tuesday in May)
New York's system centers on "Grievance Day," when the Board of Assessment Review hears complaints. The date varies by municipality. File your complaint form (Form RP-524) before or on Grievance Day. Full New York appeal guide.
Ohio (March 31)
File a complaint with the county Board of Revision by March 31. Ohio uses a triennial reassessment cycle with annual updates in between. If your value jumped significantly, check whether the increase reflects actual comparable sales in your area. Full Ohio appeal guide.
Michigan (March Board of Review)
Michigan's Board of Review meets in March, typically the second and third weeks. You must file a petition and attend the hearing (or submit in writing) during this window. Assessment notices arrive in February, giving you roughly 4-6 weeks to prepare. Full Michigan appeal guide.
New Jersey (April 1)
File with the county tax board by April 1. New Jersey has some of the highest property taxes in the country, making appeals particularly valuable. You can also file with the Tax Court by October 1 if you miss the county deadline, but the county board is faster and cheaper. Full New Jersey appeal guide.
Georgia (45 Days From Notice)
Georgia notices go out in April or May. You have 45 days from the date on the notice to file an appeal. Georgia uses a 40% assessment ratio, so multiply the assessed value by 2.5 to get the implied market value. Full Georgia appeal guide.
What to Do If Your Deadline Already Passed
If you missed your spring deadline, you have two options:
- Check for a secondary appeal window. Some states allow filing with a state-level board or tax court after the initial deadline. New Jersey's Tax Court deadline (October 1) is an example.
- Prepare for next year. Mark next year's expected notice date and deadline on your calendar now. Start tracking comparable sales and documenting your home's condition. Being prepared early gives you the best chance of a successful appeal next time.
Our Annual Monitor ($49/year) sends deadline reminders and updated comps each year so you never miss another window.
The Cost of Waiting
Every year you pay on an inflated assessment is money you do not get back. Most states do not refund overpayments from prior years. The appeal only affects the current year forward.
If your assessment is $40,000 too high and your tax rate is 1.5%, that is $600 per year you are overpaying. Wait three years and that is $1,800 gone. The cost of appealing is zero (if you do it yourself) to $79 (with our evidence packet builder). The math speaks for itself.
Frequently Asked Questions
Can I appeal every year?
Yes, in most states. You can file an appeal each time you receive an assessment notice. Some homeowners appeal annually until they get the reduction they are looking for.
What if my market is still rising?
A rising market does not mean every assessment is correct. Focus on your specific property compared to specific comparable sales. Even in a rising market, individual assessments can be too high.
Should I appeal a small increase?
If the increase is 2-3% and home prices in your area rose by a similar amount, the assessment is probably fair. Focus your appeal efforts on significant overassessments where the potential savings justify the time investment.
Spring Deadlines Are Closing
If you received your 2026 assessment notice, your appeal deadline may be weeks away. PropertyTaxFight builds your complete evidence packet with comparable sales, assessment comparisons, and appeal-ready documents. $79. No subscription. Build your evidence packet now.