Unpaid property taxes: tax liens, tax sales, and how they outrank your mortgage
A mortgage lender needs four months of missed payments before it can even start a foreclosure. A county treasurer does not need your lender’s permission at all — the property tax lien usually sits ahead of the mortgage in priority, which is why unpaid taxes take homes that have no mortgage on them whatsoever.
First question: is your loan escrowed?
If your servicer collects taxes and insurance with the payment, it pays the county on your behalf and you will rarely see a delinquency notice. That protection has a price. When the bill comes in higher than projected, the servicer advances the difference and recovers it through a shortage spread over the next twelve months, which is the usual explanation for a payment that jumps without any change in your rate — the mechanics are in our guide to how escrow accounts work.
If your loan is not escrowed — a conventional loan with an escrow waiver, a paid-off home, an inherited property, a loan taken through a private lender — nobody is watching but you. And if a servicer discovers delinquent taxes on a loan it services, it will often pay them to protect its lien position and then charge you, sometimes by force-establishing an escrow account and raising the payment substantially. Federal escrow rules under Regulation X govern how that account is analyzed; they do not stop it from being created when the loan documents allow it.
Two systems: tax lien states and tax deed states
Property tax enforcement is entirely state and local law, and it comes in two broad flavors. Local variations are enormous — including cities and counties that run their own hybrid — so treat the table as a map, not a rulebook.
| Tax lien certificate states | Tax deed states | |
|---|---|---|
| What is sold | A certificate representing the debt plus statutory interest | Title to the property itself |
| Who buys | Investors bidding for the interest rate or a premium | Investors bidding for the property at auction |
| What you owe to fix it | Back taxes, penalties and the certificate’s statutory interest | Back taxes and costs, if a redemption period exists |
| How title is lost | The certificate holder forecloses or applies for a deed after the redemption period | At the sale, or at the end of a post-sale redemption period |
| Typical timeline | Often one to three years from delinquency, by statute | Often several months to a couple of years |
The interest is the part that surprises people. Statutory rates on delinquent property taxes and on tax certificates are set by legislatures rather than markets, and in a number of states they run well into double digits annually — far above what any mortgage late fee costs. A small bill left alone for two years is not a small bill anymore.
You are entitled to the surplus
Until recently, a dozen or so states let the government keep everything a tax sale produced, including equity far beyond the debt. In 2023 the Supreme Court ended that in Tyler v. Hennepin County: a county sold a condominium for $40,000 over roughly $15,000 in taxes, interest and penalties, and kept the $25,000 difference. The Court held that keeping the surplus was a taking under the Fifth Amendment.
States have been rewriting their statutes since, and the practical consequence for a homeowner is a claims process — with forms, a filing window and a deadline that can be short. If a property you owned has already been sold for taxes, ask the county in writing what surplus exists and how to claim it, and do it early. This is also exactly the situation that attracts “surplus recovery” outfits offering to reclaim your own money for a large percentage; the patterns are the same ones described in our guide to foreclosure rescue scams.
What to do, in order
- Get the real number from the treasurer. Ask for the full payoff figure through a specific date, including interest and costs, in writing. Third-party sites are often stale.
- Ask about an installment plan. Many counties will spread delinquent taxes over one to five years and stop the sale process while payments are made. This is the single most under-used remedy.
- Check every exemption you may have missed. Homestead, senior, veteran, disability and agricultural exemptions can cut the annual bill materially, and some states let older or disabled owners defer taxes as a lien repaid at sale. Exemptions rarely apply retroactively, so filing this year still matters.
- Appeal the assessment for next year if the valuation is out of line with comparable sales. Appeal deadlines are unforgiving and unrelated to the delinquency.
- Tell your servicer before it finds out. On an escrowed loan a surprise here becomes a force-established account; on an unescrowed loan, some servicers will voluntarily set up escrow going forward, which is not a bad outcome if budgeting is the underlying problem.
- Ask a free counselor. A HUD-approved housing counselor costs nothing, knows the local programs, and can tell you whether your state’s homeowner assistance program still has funds for delinquent property taxes — several covered them, and several have closed. The CFPB takes complaints about servicer conduct.
Claude Loan is an information site, not a lender, a servicer, a law firm or a tax advisor. Property tax procedure is county-level law with hard deadlines; if a sale date is set, an attorney in your state is the right call.
Frequently asked questions
Can the county really take my house over a few thousand dollars?
Over time, yes — the debt itself does not have to be large, because the process is about the lien rather than the amount. What changed after Tyler is that you should not lose the equity above the debt; you still have to claim it, on the county’s schedule.
Does my mortgage survive a tax sale?
Property tax liens generally take priority over a mortgage, and a completed tax sale can wipe out the lender’s lien in many states. That is precisely why servicers advance the taxes and charge you rather than let a sale happen — the lender is protecting itself, and incidentally the house.
Will delinquent property taxes show up on my credit report?
The nationwide credit bureaus stopped including tax liens on consumer reports several years ago, so a score may look untouched. The lien is still recorded against the property, and it will surface at any refinance, sale or title search — a clouded title stops a closing just as effectively as a low score.
I inherited a house and the taxes were already behind. Where do I start?
With the treasurer for the payoff, and with the servicer to establish your standing on the loan. Heirs have specific rights under federal servicing rules once they are confirmed — see inheriting a house with a mortgage, and act before the redemption window closes.
I cannot pay the mortgage and the taxes. Which one first?
Neither answer is universal, but the tax lien is the one that outranks everything and can move on its own schedule, while a servicer generally cannot start foreclosure before the loan is more than 120 days delinquent. Talk to a counselor before choosing, and read what to do in the next 72 hours.
Sources
Related: Mortgage escrow accounts: what your servicer collects, and why the payment moves, Inheriting a house with a mortgage: successor in interest rights, and how heirs lose homes, HUD-approved housing counselors: free help that servicers take seriously, Can’t pay your mortgage this month? What to do in the next 72 hours. Hub: Mortgage problems.