When a house sells at a Colorado foreclosure auction for more than the debt, the extra money does not vanish. The law calls it the overbid. After any shortfall in the lender’s own bid and any junior lienholders who filed are paid, what remains belongs to the borrower. Changes in 2024 and 2026 made that money harder to lose track of. The rules differ for a lender’s foreclosure, a county tax deed auction and an HOA foreclosure, so each one gets its own section below.

What the overbid is

A public trustee sale opens with the lender’s bid, which is usually close to what the borrower owes plus costs. If someone bids more, the difference is the overbid. Colorado sets the order it is paid in. If the lender bid less than the full debt, the overbid first covers that shortfall. The public trustee holds the rest until every redemption period has ended. Junior lienholders who filed to redeem are paid next, which can mean a second mortgage or a recorded judgment. Whatever is left goes to the borrower (C.R.S. 38-38-111).

Most sales never produce one. Lenders often bid the full debt, and nobody outbids them. When a house carries real equity, though, bidders at the auction may go above the lender’s number.

Two years to claim it, starting July 1, 2026

Until this year, unclaimed overbid left the public trustee’s hands six months after the sale. House Bill 26-1098 changed that, effective July 1, 2026. The session law now reads this way:

  • The public trustee holds unclaimed overbid in escrow and must pay it, without interest, to the person entitled to it at any time within two years of the sale date.
  • Overbid of $25 or more that nobody claims within two years goes to the state treasurer under the Revised Uniform Unclaimed Property Act. It can still be claimed from the state after that.
  • Overbid under $25 that nobody claims within six months goes to the county.
  • When $25 or more is left for the borrower, the public trustee must make reasonable efforts to find a current address and mail a notice.
  • When more than $500 sits unclaimed after the redemption periods, the public trustee also publishes a notice in a local newspaper.

To check, contact the public trustee in the county where the house was sold. Ask whether an overbid is being held in your name and what they need to release it. Have the sale date and the property address ready.

Nobody needs a percentage of it

People who lose a house at auction often get letters offering to recover the money for a share of it. For overbid held by the public trustee, Colorado makes that kind of agreement unenforceable. A person who induces someone to sign one commits a class 2 misdemeanor (C.R.S. 38-38-111(2.5)(c)). The public trustee holds the money at no charge, and asking costs nothing.

Tax deed auctions now pay the owner too

Unpaid property taxes follow a different road. Each fall the county treasurer sells tax liens at an annual sale. Weld County’s 2026 sale was set for November 5 and run online, according to the Weld County Treasurer. Larimer County’s starts at 8 a.m. on Thursday, November 19, at The Ranch in Loveland, per its October 30 notice. The investor who buys a lien earns interest. The house stays with the owner, who can redeem by paying what is owed.

For decades, a lien left unredeemed for three years could end in a treasurer’s deed that handed the whole house, with all of its equity, to the lien holder. After a 2023 U.S. Supreme Court decision on an owner’s right to value above the tax debt, Colorado rewrote that step. House Bill 24-1056 has required a public auction before any treasurer’s deed since July 1, 2024. Senate Bill 26-144 rebuilt that auction for every deed issued on or after June 1, 2026. Under the 2026 law:

  • To redeem, the owner first files an intent to redeem with the treasurer no later than seven calendar days before the scheduled auction. The fee is capped at $25. Within three business days the treasurer sends a redemption statement with the amount due. Filing alone does not redeem the house: the owner has to pay that amount before the statement expires, which is ten business days after it is issued or noon the day before the auction, whichever comes first.
  • If the owner has died or become incapacitated, heirs, a personal representative, a guardian or a conservator can file with proof.
  • Any overbid goes to junior lienholders who filed claims, then to the owner. When $25 or more remains, the treasurer must make reasonable efforts to find the owner’s current mailing address and mail a notice. Treasurer websites must also tell owners to call after an auction because they may have money due.
  • The county treasurer holds unclaimed owner overbid in escrow for two years from the auction date. After that, $25 or more goes to the state treasurer as unclaimed property. Amounts under $25 that nobody claims within six months go to the county.
  • A deal to pay someone to recover it after it moves to the state is enforceable only up to 10 percent, and only if signed at least two years after the transfer.

HOA foreclosures have their own limits

An association can foreclose its lien for unpaid assessments, but that path is narrower than it was. Under House Bill 24-1337, in effect since August 2024, when the owner lives in the unit as their main home, the association generally has to win a personal judgment against the owner in court before it can foreclose, with narrow exceptions. That rule does not cover a unit owned by a company or one the owner does not live in, unless the unit is workforce housing (C.R.S. 38-33.3-316(10.5) and (10.6)). After an HOA foreclosure sale, the owner of record can redeem between 35 and 180 days after the sale, but only after filing a notice of intent to redeem with the officer who ran the sale within 30 days of it.

House Bill 25-1043, in effect since October 1, 2025, added notice steps. At least 30 days before it files, the association has to send the owner two notices: one on the owner’s right to counseling, and one stating its intent to foreclose. The intent notice warns that the unit could be sold at auction with some or all of the owner’s equity lost, and it points to counseling, to mediation and to the state’s free HOA information and resource center. Within five business days after filing, the association has to notify the lienholders on record of the right to cure the debt and of the owner’s right to ask the court to stay the sale. Before the auction date, the owner can file that motion so the unit can be listed for sale at fair market value, or at another amount the court sets. The stay lasts nine months, and the court can extend it.

Selling before the sale date

An overbid is whatever is left after an auction where you do not set the price. Lenders often bid the debt. Bidders price in risk, since they usually cannot get inside the house before they buy. Waiting for the overbid can leave less on the table than a sale you arrange yourself.

When a sale closes before the trustee sale date and the loan is paid in full, the lender withdraws the foreclosure. What is left after the payoff and any liens reaches you at closing, not months later through a claim. If the price is less than the payoff, the lender has to approve a short sale first. Colorado also gives specific protections to an owner who lives in the house and sells to an investor while in foreclosure. Before you sign anything with anyone, a HUD-approved housing counseling agency is worth a call, and HUD’s counselor search lists the ones near you.

Our foreclosure in Colorado guide walks through the timeline step by step. For how a sale before the trustee date works with us, see selling a house in foreclosure.

If you want a number to compare against an auction, the form at the top of this page is the quickest way to ask Amy or Jenny for one.

This is general information, not legal advice; confirm with a Colorado attorney.