2026 Assessment Season Checklist: Everything to Do Before You File

2026 Assessment Season Checklist: Everything to Do Before You File

Phase 1: Review Your Notice (Days 1-3)

The clock starts the day your notice arrives. Do not put this off.

Checklist: Notice Review

• Record the appeal deadline. Write it down. Set a phone reminder. Put it on your calendar. This is non-negotiable.
• Check property details. Square footage, lot size, bedrooms, bathrooms, year built, construction type, features. Compare every detail to your actual home.
• Note the assessed value. Write down this year's value and last year's value. Calculate the percentage change.
• Check exemptions. Is your homestead exemption applied? Any senior, veteran, or disability exemptions you qualify for?
• Read the appeal instructions. Note where to file, how to file, and what documents you need.

Phase 2: Research (Days 3-10)

Now that you know what the assessor thinks your home is worth, it is time to find out if they are right.

Checklist: Market Research

• Pull comparable sales. Find 3-5 homes similar to yours that sold in the last 6-12 months within a half mile. Note the sale price, square footage, lot size, and condition of each.
• Check neighbor assessments. Look up the assessed values of similar homes on your street or in your subdivision. Your county assessor's website usually makes this easy.
• Calculate the price per square foot. Divide each comp's sale price by its square footage. Do the same for your assessed value. If your per-square-foot assessment is significantly higher than the comps, you have a case.
• Document condition issues. Take dated photos of any problems: roof damage, foundation cracks, outdated kitchens or bathrooms, deferred maintenance. These reduce your home's value below what the assessor may assume.
• Get repair estimates. If you have significant issues, get written quotes from contractors. A $15,000 roof replacement or $8,000 foundation repair directly affects your home's market value.

Checklist: Record Verification

• Pull your property record card. This is the assessor's detailed file on your property. Most are available online through your county assessor's website. It shows exactly what data the assessor used.
• Cross-reference with your records. Compare the property record card details to your deed, survey, purchase appraisal, or any other documentation you have.
• Note every discrepancy. Wrong square footage? Extra bedroom? Pool you do not have? Each error is a point in your favor.

Phase 3: Build Your Case (Days 10-20)

You have your research. Now organize it into a compelling argument.

Checklist: Evidence Assembly

• Create a comparable sales sheet. List each comp with address, sale date, sale price, square footage, lot size, bedrooms/bathrooms, and price per square foot. Highlight how they compare to your property.
• Write your value argument. State what you believe your home is worth and why. Keep it factual: "Based on five comparable sales within 0.4 miles, the average sale price was $312,000. My home is assessed at $365,000, which is 17% above the comparable market."
• Organize your photos. Date them and label what each shows. A photo of a cracked foundation is worth more than saying "my foundation needs work."
• Compile repair estimates. Include the contractor's name, date, and itemized estimate.
• Print everything. Most review boards want paper copies. Print at least two sets: one for you and one for the board.

Phase 4: File Your Appeal (Days 15-25)

Do not wait until the last day. Mail gets lost. Websites crash. Give yourself a buffer.

Checklist: Filing

• Complete the appeal form. Include your property address, parcel number, current assessed value, your opinion of value, and the reason for your appeal.
• Attach your evidence. Comparable sales, photos, repair estimates, and any other supporting documents.
• Submit before the deadline. If filing by mail, send it certified mail with return receipt so you have proof of the date. If filing online, save the confirmation.
• Keep copies of everything. Your appeal form, all evidence, and your proof of filing.
• Note the hearing date. You will receive a hearing date after filing. Mark it on your calendar immediately.

Phase 5: Prepare for the Hearing (Days 25-60)

Not all appeals go to a hearing. Some are resolved through informal review or desk review of your evidence. But if your case does go to a hearing, be ready.

Checklist: Hearing Preparation

• Practice your presentation. You typically get 10-20 minutes. Lead with your strongest evidence. Be concise.
• Prepare a summary sheet. One page showing your assessed value, your opinion of value, and the key evidence supporting your position. Hand this to the board members.
• Know the assessor's position. If you went through an informal review, you should know what evidence the assessor relies on. Be ready to counter it.
• Stay factual. Do not argue about tax rates or how much you pay. The board can only change your assessed value. Focus on proving the assessor's value is too high.
• Bring all your evidence. Organized, labeled, and in enough copies for each board member plus yourself.

Key Deadlines for 2026

Appeal deadlines vary by state and sometimes by county. Here are some of the most common:

State	Notice Typically Arrives	Appeal Deadline
Texas	April	May 15 or 30 days after notice
California	July-August	September 15 - November 30
Florida	August	25 days after TRIM notice
New York	January-May (varies)	Grievance Day (typically 3rd Tuesday in May)
Illinois	Varies by township	30 days after publication
Georgia	April-May	45 days from notice
Ohio	January-February	March 31
New Jersey	February	April 1

For your specific state's deadlines, check our 2026 property tax appeal deadline calendar.

Tools That Save Time

You can do everything on this checklist manually. Pull comps from real estate websites, format your own evidence sheets, and write your own appeal letter. Many homeowners do.

But if you want to save hours of research and make sure your evidence is formatted correctly for your county, our evidence packet builder does the heavy lifting. For $79, it pulls comparable sales, analyzes your assessment, and generates a complete appeal-ready packet. No subscription. No recurring fees.

Do Not Skip These Steps

The homeowners who succeed in appeals are the ones who prepare. Showing up with organized, factual evidence puts you ahead of most appellants. The review board sees plenty of homeowners who walk in and say "my taxes are too high" with nothing to back it up. Do not be that person.

Follow this checklist, bring your evidence, and make a factual case. The data is on your side more often than you think.

Frequently Asked Questions

How long does the whole process take?

From receiving your notice to getting a decision, the typical timeline is 2-6 months. Filing and preparing your case takes a few weeks. The hearing may not be scheduled for 1-3 months after you file. The decision usually comes within a few weeks after the hearing.

What if I do not have time to do all this research?

Focus on the essentials: check your property details for errors, pull 3-5 comparable sales, and file before the deadline. Even a basic appeal with solid comps can get results. Or use a tool like PropertyTaxFight to handle the research automatically.

Can I appeal if my value did not change?

In most states, yes. Even if your assessment stayed the same, you can appeal if you believe the current value is too high. You do not need an increase to trigger the right to appeal.

What happens if I lose my appeal?

Your assessment stays where it is. In most states, you cannot be penalized for appealing, and your value cannot be raised as a result of the appeal. You can try again next year with new evidence.