Do you get interest on property tax overpayments?

Last updated 2026-07-11

What is a property tax overpayment and how does it happen?

A property tax overpayment is what it sounds like. You paid more than you legally owed, and the county or municipality is holding the difference. It happens in four distinct ways, and knowing which one applies to you matters, because the refund path is different for each.

The most common cause is a successful appeal. You challenged your assessment, the board or assessor agreed, and the corrected value produces a lower bill. If you already paid the original bill before the appeal resolved, the overpaid amount sits with the taxing authority until you ask for it back. Some jurisdictions process it automatically. Most don't.

The second cause is a clerical or data error. The assessor had the wrong square footage, listed your house as commercial, or double-billed a special assessment. Once the error is found and corrected, a credit or refund is owed.

Third: retroactive exemptions. Senior, veterans, disability, and homestead exemptions sometimes get approved months after the tax year has closed. Every dollar of exemption-reduced tax you already paid becomes an overpayment.

Fourth, and least common: duplicate payments. This shows up with mortgage escrow. Your servicer paid, you paid, and the county cashed two checks for the same bill. Servicers usually catch these eventually. Homeowners often find out later and have to sort out who gets the money back.

Do counties and states actually pay interest on property tax refunds?

Yes, most do. The operative word is most. There is no federal requirement here. Refund interest is a creature of state statute, and the range of outcomes is wide.

Roughly 40 states have statutes that require interest on property tax overpayment refunds ^[1]. Rates run from about 3% a year to 9.5% a year, calculated differently depending on the state. Some states write a flat rate into the law. Others peg it to the prime rate, the federal short-term rate, or the same rate the state charges on delinquent taxes.

A few states pay zero interest on refunds below a dollar threshold, or zero interest on refunds processed inside a short window (often 60 or 90 days), on the theory that a fast refund costs you nothing. Illinois, under 35 ILCS 200/20-178, requires 5% a year on property tax refunds from successful appeals, but only after the refund has been outstanding at least 90 days ^[2].

California is more generous in some ways. Revenue and Taxation Code section 5151 sets interest at a rate chosen by the county board of supervisors, which in practice runs 3% to 6% in most California counties ^[3]. Los Angeles County, which handles more property tax transactions than almost any county in the country, uses that framework, as does Santa Clara County.

Texas is the useful contrast. Under Texas Tax Code section 31.12, if a property owner is owed a refund and the taxing unit does not mail it within 60 days of the date the overpayment is determined, the unit must pay 9.5% a year on the unpaid amount ^[4]. That is one of the highest statutory rates in the country. But the clock starts from the date the overpayment is formally determined, not from when you filed your appeal, so owners in counties like Bexar have to follow up. If you're there, Bexar County tax assessor has a dedicated refund inquiry line.

New York City does it differently again. Refunds from successful Tax Commission proceedings accrue interest at a rate the Finance Commissioner sets each year, historically around 3% to 4% ^[5]. Given how NYC property tax billing works, commercial refunds often take the longest to clear.

Here's the honest math. If your state pays 5% a year and your overpayment is $4,000, that's $200 a year in interest. Small on its own. Enormous in aggregate across a county. The money exists. You have to claim it.

Which states pay the highest and lowest interest on property tax refunds?

Texas pays the most among the large states, at 9.5% a year, and Florida and Georgia pay nothing at all. Here is how the biggest states compare, drawn from their statutes. If your state isn't listed, check its department of revenue or property tax code directly.

State	Statutory Interest Rate	Authority	Notes
Texas	9.5% per year	Tax Code § 31.12	Kicks in after 60 days from determination
Michigan	6% per year	MCL § 211.154	Applies to corrections and successful appeals
Illinois	5% per year	35 ILCS 200/20-178	After 90 days outstanding
Pennsylvania	4% per year	72 P.S. § 10004.1	Applied from date of overpayment
New York City	3% to 4% per year	NYC Admin Code § 11-319	Rate set annually by Finance Commissioner
California	3% to 6% per year	R&T Code § 5151	Set by county board of supervisors
Florida	No statutory interest	F.S. § 197.182	Refund due within 90 days, no interest penalty
Georgia	No statutory interest on most refunds	O.C.G.A. § 48-5-380	Refund within 90 days or the taxpayer can sue

Sources: state statutes as cited ^{[2][3][4][6][7]}. Florida and Georgia are the notable exceptions. The law requires a prompt refund but attaches no interest penalty, which removes the government's incentive to drag its feet and removes your interest income at the same time.

Cook County, Illinois homeowners and commercial owners should know the county often takes longer than 90 days to process appeal refunds through the circuit court tax objection route. When that happens, the 5% accrual is real money. The Cook County tax assessor tax bill guide covers how refunds move through that system.

How long do you have to claim a property tax overpayment refund?

The window runs from one to five years depending on the state, and missing it means the money stays with the government forever. This is the part that trips people up most. Every state sets a statute of limitations on property tax refund claims, and it is enforced.

The most common window is three years from the date of overpayment. You'll also find one-year, two-year, four-year, and five-year windows. Some states start the clock from the date of payment, some from the date the error was discovered, some from the date the assessment was corrected.

Illinois gives you five years from the date of erroneous payment under 35 ILCS 200/20-175 ^[2]. California allows four years from the date of payment under Revenue and Taxation Code section 5097 ^[3]. Texas gives owners five years to request a refund under Tax Code section 31.11 ^[4].

Georgia is tighter. Taxpayers get only three years from the date of payment under O.C.G.A. § 48-5-380 ^[6]. Gwinnett County enforces that strictly. If you're tracking a pending appeal there, the Gwinnett County tax assessor page covers the county's refund process.

Pennsylvania has a catch. The general three-year window under 72 P.S. § 10004.1 applies, but individual municipalities sometimes impose shorter internal deadlines for the written claim ^[7]. Confirm locally before you rely on three years.

Mortgage escrow overpayments run partly on a different track. RESPA (12 U.S.C. § 2605) and your servicer's obligations govern the escrow side, more than state property tax law. Your servicer should handle the request on duplicate-payment cases, but you may still need to file a claim with the county directly if the county holds the credit.

File your refund claim the moment you know you have an overpayment. Don't wait for the county to mail you a check. Some will, especially in automated jurisdictions. Many won't.

How do you actually file a property tax refund claim?

The process varies by county, but the structure is consistent enough to lay out in five steps. Confirm the overpayment, get the right form, attach documentation, file with the correct office, and track it.

First, confirm the overpayment exists. Pull your payment history from the county treasurer's or tax collector's website. Compare what you paid against the corrected bill or the final assessed value after appeal. The difference, times the applicable tax rate, is your refund amount.

Second, get the right form. Most counties have a specific property tax refund form. In California counties it's often a Claim for Refund or an Application for Refund of Taxes, and the State Board of Equalization's Property Tax Rules provide the framework ^[3]. In Illinois it may be a Tax Objection Complaint filed in circuit court for certain disputes, or a plain written request for clerical corrections. Many Texas counties accept a written letter referencing Tax Code § 31.11, though some have their own forms ^[4].

Third, attach your documentation. You need proof of payment (receipt or bank statement), the corrected assessment notice or appeal decision, and the calculation showing the overpayment. If the refund comes from a retroactive exemption, attach the exemption approval letter.

Fourth, file in the right place. In most counties you file with the county auditor, treasurer, or tax collector, depending on how the county is organized. Some counties, like Montgomery County in Maryland and Pennsylvania, split assessments and collections across different offices, so you may need to submit paperwork to more than one.

Fifth, track the claim. Ask for a confirmation number or receipt. Follow up in writing at 45 days if you've heard nothing. If your state's interest clock needs a formal determination date to start (Texas), you want documentation of when the overpayment was officially acknowledged.

If you're running a DIY appeal and want a pre-built workflow for calculating and documenting the refund alongside the appeal, the TaxFightBack appeal kit includes refund calculation worksheets and state-specific instruction sheets for this step.

One more thing for online payers. An online payment confirmation counts as proof of payment in nearly every jurisdiction, but download and save it at the time of payment. Older records sometimes drop off county portals. The online tax payment for property guide covers how to retrieve those records if they've vanished.

What if your appeal succeeded but the refund was never sent?

You won the appeal. The assessor corrected the value. You assumed the refund was coming. Nothing arrived. This happens more than it should, and the reason is almost always structural, not personal.

Winning at the assessment level does not automatically generate a tax office refund. The assessor corrects the roll, that correction travels to the tax collector's system, and a separate process cuts the actual check or credit. Every handoff adds delay. In large counties, that chain can take six months or more.

If six months have passed since your appeal was finalized and no refund or credit has hit your account, file a formal written refund claim with the tax collector's office. Do not rely on the assessor's office to push it through.

When you file, reference the specific appeal docket number and the date the corrected assessment was issued. That builds a paper trail with a start date, which can affect when interest begins to accrue. In Texas, the 60-day interest clock in Tax Code § 31.12 starts from the date the overpayment is determined, and a formal written claim with documentation helps pin down that date ^[4].

If the refund is delayed long enough that you suspect the taxing authority simply isn't processing it, most states let you pursue it through a formal administrative hearing or, in some cases, a circuit or superior court petition. That's a longer road and rarely worth it for small amounts. For commercial owners, the math often favors pursuing it.

Does the interest you receive on a property tax refund count as taxable income?

Yes, and it catches people off guard. The interest portion of a refund is always ordinary income. The principal portion may or may not be taxable, depending on whether you deducted the tax in the first place.

The principal amount, the actual overpaid tax, is generally not income. But if you previously deducted that property tax on your federal Schedule A, the refund of it may be taxable in the year you receive it under the tax benefit rule (IRC § 111) ^[8]. The IRS is direct on this: if you got a tax benefit from deducting a payment and you later recover it, the recovery is income to the extent it reduced your tax.

The interest portion is taxable regardless of whether you itemized. The county or other taxing authority should send you a 1099-INT for interest of $10 or more ^[9]. If the refund arrives without a 1099 but includes interest, you still have to report it.

For most homeowners who take the standard deduction, the tax benefit rule doesn't touch the principal, because the property tax deduction gave you no actual benefit. In that case only the interest is taxable.

Commercial owners almost always deduct property taxes as a business expense, so both the principal recovery and the interest are generally income. Talk to your CPA before filing if the refund is large.

What happens with escrow accounts when a refund is owed after an appeal?

The refund goes to whoever paid the overpaid tax, and if your servicer paid it from escrow, the check may come to the servicer instead of you. Escrow makes the mechanics messy fast, so confirm the routing before you assume anything.

RESPA requires servicers to refund escrow surpluses over $50 to borrowers within 30 days of the annual escrow analysis, but an appeal refund is not automatically treated as a surplus. It depends on how the servicer processes the credit ^[10].

In practice, some counties issue the check in the property owner's name even when taxes were paid from escrow. Others send it to the servicer. Call your county treasurer or tax collector and ask explicitly before you count on it landing in your mailbox.

If the refund goes to the servicer, the servicer is supposed to pass it to you as an escrow surplus unless your escrow balance is negative. Get that in writing. Servicer handling of appeal refunds is one of the reliable friction points in this whole process.

For next year's escrow, your servicer should drop your monthly payment to reflect the corrected lower assessment. If they don't, you'll build an unnecessary surplus. Notify them in writing once the appeal is final and the corrected bill is issued.

Are property tax refund interest rates higher or lower than what the county charges you for late payments?

Almost always lower, and the gap is often large. States commonly charge 12% to 18% a year on delinquent property taxes, sometimes with penalties stacked on top. The rate they pay you for holding your overpayment is usually a fraction of that.

Texas is the least lopsided of the big states. It charges 12% a year plus a 6% penalty on delinquent taxes under Tax Code § 33.01, and pays 9.5% on refunds under § 31.12 ^[4]. Still a spread, but smaller than most.

Illinois charges 1.5% a month (18% a year) on delinquent taxes ^[2] while paying 5% a year on refunds. Florida charges 18% a year on delinquent taxes under F.S. § 197.172 but, as noted above, pays zero on refunds ^[11].

This asymmetry is built into the system on purpose. Governments want revenue certainty, so they set delinquency penalties high to discourage late payment. Refund interest is a political choice, set low, because the government is the one paying.

The practical takeaway: don't delay filing your claim hoping the interest piles up into something meaningful. In most cases it won't clear a few percent a year, and the statute of limitations risk of waiting swamps any interest benefit.

State-specific examples: California, Illinois, Texas, and New York

Three states and one city come up constantly in refund questions. Here's the working summary for each, with the deadline, the office, and the interest rule.

California: You have four years from the date of payment to file a claim under Revenue and Taxation Code § 5097 ^[3]. The claim goes to the county tax collector. Interest is set by the county board of supervisors. In Los Angeles County property tax cases, the Office of Finance processes refunds and the rate has historically been around 3% a year. Santa Clara County uses the same state framework. After an Assessment Appeals Board ruling, the tax collector typically has 90 days to process the refund.

Illinois: Two paths. For errors and clerical corrections, the county treasurer processes a direct refund under 35 ILCS 200/20-175. For contested assessments that went through the Property Tax Appeal Board or circuit court, the refund flows through the circuit court tax objection process. Interest accrues at 5% a year after 90 days under 35 ILCS 200/20-178 ^[2]. The five-year statute of limitations gives Cook County owners more runway than most states allow.

Texas: File your claim in writing with the tax collector under Tax Code § 31.11 within five years of the date of payment ^[4]. The 60-day clock for the 9.5% interest penalty starts when the overpayment is formally determined. Minnesota runs a comparable determination-date structure, and the Hennepin County property tax page covers the Minnesota version.

New York City: Refunds from Tax Commission proceedings are handled by the Department of Finance, with an interest rate set each year ^[5]. Commercial owners should know that NYC's structure, especially for Class 2 and Class 4 properties covered in the NYC property tax guide, tends to produce the largest refunds and the longest processing times. File the moment the Tax Commission finalizes the change and follow up quarterly.

Georgia homeowners: Bibb County follows the state framework under O.C.G.A. § 48-5-380, no statutory interest but a 90-day refund requirement ^[6]. The Bibb County tax assessor page has county-specific contacts for refund claims.

What should you do right now if you think you're owed a refund?

Pull your payment records today. You need three things: the exact amounts you paid, the tax year those payments covered, and whether the assessment for that year was ever corrected.

Then call the county assessor's office and ask two questions. One: has the assessed value for my property for year X been corrected or reduced? Two: is there a credit or refund pending on my account? Those answers tell you whether the system already knows about the overpayment or whether you have to start the process yourself.

If there's a pending credit, ask how it will be applied. As a credit against next year's taxes (common) or as a mailed check. Either is usually fine. But if you're selling the property or paying off your mortgage, a credit carried forward can create complications.

If there's no pending credit and you believe one is owed, get the refund claim form from the county treasurer or tax collector's website. Fill it out, attach your documentation, and send it certified mail so you have proof of the filing date. Keep a copy of everything.

If you're also in the middle of an active appeal, the TaxFightBack DIY appeal kit covers timing your refund claim against the appeal outcome, which matters in states where the statute of limitations runs from the payment date rather than the correction date.

The single biggest mistake people make is assuming the refund comes automatically. Sometimes it does. Often it doesn't. The deadline makes delay a genuine risk, and filing a written claim costs you nothing but an hour.

Frequently asked questions

How long does a property tax refund take after a successful appeal?

Typically 60 to 180 days after the appeal is finalized, though large counties often run longer. In California, most county tax collectors target 90 days. In Illinois, the circuit court tax objection process for contested appeals can take six to twelve months. File a written refund claim as soon as the appeal is final; don't assume automatic processing.

Can I get interest if my property tax refund is only a few hundred dollars?

Yes, though the dollar amount is small. At 5% a year, a $300 refund earns $15 a year in interest. Some states waive interest on refunds processed within 60 or 90 days. At low dollar amounts, the bigger concern is filing the claim before the statute of limitations expires, not the interest income.

Does the county automatically send a property tax refund or do I have to request it?

It depends on the jurisdiction. Some counties automatically issue refund checks or account credits after an appeal decision. Many do not. In most states you must file a written refund claim to trigger the process, especially when the refund comes from a retroactive exemption or a corrected error. Assume you need to file unless your county confirms otherwise.

What is the statute of limitations on a property tax refund claim?

It ranges from one to five years depending on the state. California allows four years from the date of payment (R&T Code § 5097). Texas and Illinois allow five years. Georgia allows three years. Pennsylvania generally allows three years. Missing this deadline means you permanently lose the refund, so file as soon as possible after discovering an overpayment.

Is a property tax refund taxable income?

The interest portion is always taxable as ordinary income and should be reported whether or not you receive a 1099-INT. The principal refund may be taxable under the tax benefit rule (IRC § 111) if you previously deducted that property tax on Schedule A. If you took the standard deduction, the principal is generally not taxable.

What interest rate does Texas pay on property tax overpayments?

Texas pays 9.5% a year under Tax Code § 31.12, but only after the taxing unit fails to issue the refund within 60 days of when the overpayment was formally determined. That 60-day window runs from the determination date, not from when you filed your appeal. A written claim with documentation helps establish that date clearly.

Does Florida pay interest on property tax refunds?

No. Florida statute § 197.182 requires the tax collector to issue refunds within 90 days of approval but attaches no statutory interest rate to delayed refunds. If your refund is late, you can file a complaint with the Florida Department of Revenue, but you won't earn interest on the delay the way you would in Texas or Illinois.

What happens to my property tax refund if my mortgage servicer paid the taxes from escrow?

The refund check may go to your servicer rather than to you, depending on how the county records the original payment. Your servicer is required under RESPA to pass surplus escrow funds to you, but this is not automatic for appeal refunds. Call the county treasurer and your servicer to confirm routing before the check is cut.

If I win a property tax appeal, does the interest on the refund start from the date I overpaid or the date the appeal was decided?

Most state statutes start the interest clock from the date the overpayment was made, not the appeal decision date. But the accrual for delayed-refund penalties (like Texas's 9.5% provision) often starts from the date the overpayment is formally determined, which may be the appeal decision date. Check your specific state statute.

Can a property tax refund be applied as a credit against future taxes instead of being paid as a check?

Yes. Many counties offer this and some apply credits automatically. A credit against your next installment is functionally equivalent to cash, but it creates complications if you're selling the property or paying off your mortgage before the credit is applied. Request a cash refund if either situation applies to you.

What documents do I need to file a property tax refund claim?

You need proof of the original payment (bank statement, county receipt, or escrow statement), the corrected assessment notice or appeal decision showing the reduced value, and a calculation of the overpayment amount. For retroactive exemptions, include the exemption approval letter. Most counties have a specific refund claim form; attach all documents to it.

Does a duplicate property tax payment by my mortgage servicer qualify for interest?

It depends on how long the county holds the duplicate funds before refunding them. If the refund is processed within the county's normal window, interest typically does not accrue. If processing is delayed past the statutory threshold (60 days in Texas, 90 days in several other states), the same interest rules apply as for any other overpayment.

Can I get a refund if I overpaid property taxes several years ago?

Only if you're still within the statute of limitations for your state. California allows four years from payment, Texas and Illinois five years, Georgia three years. Beyond those windows the claim is barred. Pull your payment history for all open years now, calculate whether an overpayment exists, and file claims for each open year separately before the deadline passes.

Sources

1. Lincoln Institute of Land Policy, Significant Features of the Property Tax: Most U.S. states have statutes requiring interest on property tax overpayment refunds; state rates and conditions vary widely.
2. Illinois General Assembly, 35 ILCS 200/20-175 and 35 ILCS 200/20-178: Illinois provides a five-year window to claim property tax refunds and requires 5% annual interest on refunds outstanding more than 90 days.
3. California State Board of Equalization, Revenue and Taxation Code §§ 5097 and 5151: California allows four years from date of payment to claim a property tax refund; interest is set by the county board of supervisors.
4. Texas Comptroller of Public Accounts, Texas Tax Code §§ 31.11 and 31.12: Texas allows five years to claim a property tax refund under § 31.11 and requires taxing units to pay 9.5% annual interest on refunds not issued within 60 days of determination under § 31.12.
5. Georgia General Assembly, O.C.G.A. § 48-5-380: Georgia requires property tax refunds within 90 days of approval and provides a three-year statute of limitations; no statutory interest rate is specified.
6. Pennsylvania General Assembly, 72 P.S. § 10004.1: Pennsylvania provides for a 4% annual interest rate on property tax refunds and a general three-year statute of limitations.
7. Internal Revenue Service, IRC § 111 and Publication 525: A recovered property tax deduction is taxable income in the year of recovery under the tax benefit rule (IRC § 111); interest on refunds is always taxable as ordinary income.
8. Internal Revenue Service, Form 1099-INT Instructions: Payers must issue a 1099-INT for interest payments of $10 or more, including interest paid by a government on a tax refund.
9. Consumer Financial Protection Bureau, RESPA Escrow Rules (12 U.S.C. § 2605): RESPA requires mortgage servicers to refund escrow surpluses exceeding $50 within 30 days of the annual escrow analysis.
10. Florida Legislature, F.S. § 197.182 and § 197.172: Florida requires property tax refunds within 90 days and charges 18% per year on delinquent taxes under § 197.172 but provides no statutory interest rate for refunds to taxpayers.
11. Michigan Legislature, MCL § 211.154: Michigan requires 6% annual interest on property tax refunds resulting from corrections to the assessment roll.