What Are Surplus Funds? The Complete 2026 Beginner's Guide

Surplus funds are extra money left over after a foreclosure sale or a tax sale. Here is the simple version. A county or a court sells a property to pay off a debt. Sometimes the sale brings in more money than the debt actually was. That extra money is the surplus.

By law, in the large majority of states, that leftover money belongs to the person who used to own the property. Not the bank. Not the county. The former owner.

Most people never find out this money exists. This guide explains where it comes from, who has a right to it, and why so much of it sits unclaimed.

I've spent over a decade in this exact business. Since 2013, my team and I have helped recover more than $100 million across over 2,000 surplus funds cases. That is not a promise about what anyone else will earn. It is just proof that this money is real, and that the process works when it is done right.

Think of it like this. Say someone owes $200,000 on their mortgage and falls behind on payments. The lender forecloses and the home sells at auction for $260,000. The lender only gets what it is owed, plus fees and costs. Everything left over is surplus.

The same idea applies to tax sales. If someone owes $8,000 in back property taxes, and the county sells the property at auction for $90,000, the county keeps the $8,000 it was owed, plus its costs. The rest is surplus.

This money has different names depending on where you look. You might see it called surplus funds, excess proceeds, overages, overbids, or excess funds. They all mean the same thing. Extra money from a forced sale that goes beyond what was owed.

This is the part most articles get wrong. They lump everything together. But mortgage foreclosure surplus and tax sale surplus are two separate legal processes. Different rules. Different offices holding the money. Different paperwork.

Mortgage Foreclosure Surplus: When a lender forecloses on a home because the owner stopped paying the mortgage, the property usually gets sold at a foreclosure auction, often run through the court system. The foreclosing lender gets paid what it's owed, plus allowed fees and costs. Any junior lienholders get paid next, in order of priority -- this could be a second mortgage, a home equity line of credit, or a judgment lien. Whatever is left goes to the former homeowner. This money is typically held by the court, often through the court registry or the clerk of court. Here's a simple example: a home sells for $550,000, the lender is owed $525,000, leaving $25,000 in surplus. If there's a $15,000 second mortgage and a $5,000 judgment lien, those get paid first, and the homeowner gets what's left.

Tax Sale Surplus: This is a completely different track. When a property owner falls behind on property taxes, the county can eventually sell the property to recover what it's owed, through either a tax deed sale or a tax lien sale, depending on the state. Here, the money isn't held by a court. It's held by the county treasurer or tax collector's office, and the rules come from state tax code, not foreclosure law. California is a good example of how specific these rules get. Under California Revenue and Taxation Code Section 4674, excess proceeds are defined as the amount remaining from a tax-defaulted property sale after all required distributions are made. If those excess proceeds are more than $150, the county must notify anyone with an interest in the property, and a former owner's claim has to be postmarked within one year of the tax deed being recorded, or it's too late. Other states run this differently, some give a few months, some give a few years -- there is no single national deadline.

The bottom line: never assume a mortgage foreclosure case and a tax sale case work the same way, or that the same office is holding the money. Always confirm whether you're dealing with a court, a county treasurer, or a tax collector before doing anything else.

Surplus funds aren't some kind of loophole or accounting mistake. They show up for a few concrete reasons.

Home values have gone up. Many homes being foreclosed on today were bought or refinanced years ago, when prices were much lower. The loan balance reflects the old value. The sale price reflects today's value. That gap can be large.

Auctions can get competitive. Foreclosure and tax sale auctions sometimes attract multiple bidders, especially in strong housing markets. Competitive bidding can push the final sale price above the amount owed.

Junior liens get paid before the surplus goes to the owner. If there were other debts secured against the property, like a second mortgage or a contractor's lien, those get paid out of the surplus first. What's left after that still belongs to the owner.

None of this is free money floating in the system. It's equity the former owner already had in the property. The sale just converted it into cash, and that cash needs to go back to the right person.

The payout order matters, and it's consistent across both mortgage foreclosure and tax sale cases, even though the specific rules differ. First, the former owner of record -- the person or entity that owned the property right before the sale. Second, junior lienholders who file a timely claim -- if there were other liens on the property, those creditors can claim their share first, but only if they file correctly and on time. Third, the state, through escheatment, if no one claims the money in time -- if neither the owner nor any lienholder files a valid claim before the deadline, the funds usually get transferred to the state's unclaimed property division.

This is exactly why so much of this money goes unclaimed. Nobody automatically writes the former owner a check.

Here's the part that surprises people the most. In most states, the county or the court is not required to go looking for the former owner. Some send a single notice to the last known address. If that address is outdated, which it often is after a foreclosure or tax sale, the notice never reaches the person it's meant for.

And there's a clock running the entire time. Every state sets its own claim deadline, and they vary widely -- some give former owners just a few months, others allow a couple of years. Once that window closes, the money escheats to the state, and while it may still be recoverable through the state's unclaimed property process, it becomes much harder to track down and claim.

Add it up: no proactive outreach, outdated contact information, and a ticking deadline. That's how billions of dollars in surplus and unclaimed funds sit unclaimed across the country. The National Association of Unclaimed Property Administrators, the organization that represents state unclaimed property offices, reported that member states returned more than $4.25 billion to owners in fiscal year 2025 alone. NAUPA separately estimates that more than $70 billion in unclaimed property is sitting with state governments right now. Surplus funds from foreclosures and tax sales are one piece of that much larger unclaimed property picture.

A recovery agent, sometimes called a finder, is someone who helps former owners locate and claim surplus money they don't know exists. The job: search court and county records to find cases where a surplus was created, identify who the former owner was and track down current contact information, explain the process to the owner in plain language, help gather and file the required paperwork correctly and on time, and coordinate with the court, county, or an attorney where one is required.

Most agents work on a contingency fee, meaning they only get paid if the claim is successful, and their fee comes out of the recovered amount. What that fee can actually be is set by state law, and it is not the same number anywhere. Florida caps a non-attorney assignee's total compensation at 12% of the surplus recovered in a mortgage foreclosure case, under Florida Statute Section 45.033. Indiana caps recovery agreements at 10% and makes a non-compliant agreement invalid outright (Ind. Code Section 6-1.1-24-7.5). Tennessee caps at 10% or $50, whichever is greater (Tenn. Code Ann. Section 66-29-176). Texas is the outlier that catches people off guard -- a non-attorney cannot charge a fee for this work at all (Tex. Tax Code Section 34.04(i)). Rules like this vary sharply by state, so anyone acting as an agent needs to check local law before quoting a fee.

This work is generally legal because it's built into the same state statutes and county procedures that create the surplus in the first place. That said, requirements differ by state -- some states regulate finder fees directly, and a few require specific disclosures or licensing for certain activities. Nobody should assume the rules are identical everywhere.

This example is purely illustrative. It's meant to show the math, not to suggest what any real case looks like or what an agent might earn.

Say a home is foreclosed on and sold at auction for $180,000. The remaining mortgage balance owed was $140,000. Foreclosure costs and fees came to $6,000. There was a second mortgage lien of $10,000.

Here's how the surplus breaks down: $180,000 (sale price) minus $140,000 (mortgage balance) minus $6,000 (costs) minus $10,000 (junior lien) equals $24,000 in surplus.

That $24,000 would go to the former homeowner, assuming they file a valid claim before the deadline in their state. Every real case is different. This is just the formula, not a forecast.

Surplus funds are real money, created by real legal processes, and owed to real people who usually have no idea it's sitting there. The rules differ depending on whether you're looking at a mortgage foreclosure or a tax sale, the deadlines differ by state, and the money doesn't come looking for anyone.

If you want to see exactly how this works case by case, and what it takes to find and recover this money the right way, the free masterclass walks through the full process step by step.