Colorado's New Excess Funds Rule for Tax Lien Foreclosures
Colorado is a tax lien state — investors bid on premium (not rate; Colorado's interest rate floats at the Federal Reserve discount rate plus 9%, reset every September) at the original certificate auction, and if the lien goes unredeemed through the three-year window, the holder can apply for a treasurer's deed. Until July 1, 2024, that was often the end of the story: the treasurer could issue the deed directly once the statutory conditions were met, with no public resale and, as a result, no possibility of a surplus.
HB24-1056: a public auction now comes first
Colorado's HB24-1056, effective July 1, 2024, ended the direct-deed-on-request process and requires a public auction before a treasurer's deed can issue — explicitly to bring Colorado in line with Tyler v. Hennepin County, the 2023 U.S. Supreme Court ruling that treated a government keeping more than the tax debt it's owed as an unconstitutional taking. Practically, this means every Colorado lien that reaches the deed stage now goes through a real bidding process, not a paperwork handoff.
How the overbid gets distributed
When the public auction produces a winning bid above the certificate value, the overbid is paid out in order of recording priority — junior lienholders who filed a notice of intent to redeem get paid first, in the order their interests were recorded, and only after all of them are satisfied does anything left over go to the former property owner.
No short deadline, but also no fast payout
Unlike Florida's 120-day window, Colorado doesn't impose a tight claim deadline — the county treasurer (or the public trustee, in a mortgage foreclosure context) holds surplus funds and, absent a claim, eventually posts them to the county's unclaimed funds department, where they remain claimable rather than escheating outright. There's a separate timing detail worth knowing if you're the certificate holder: you can only request the public auction for a certificate of option for treasurer's deed between August 1 and December 15, and only within a window of 3 to 15 years after the original certificate purchase.
For investors: this changes the math on old certificates
If you're holding Colorado certificates purchased before mid-2024 on properties worth well above the lien amount, the old direct-deed path — effectively acquiring the property at a steep discount once the redemption window lapsed — no longer applies the same way. Expect a competitive public auction at the deed stage now, which caps your realistic return on a high-value property closer to the certificate amount plus accrued interest, with the equity above that going through the overbid distribution to junior lienholders and the former owner instead of to you.
This article is general information, not financial or legal advice. Confirm current auction and claim procedures with the relevant Colorado county treasurer. See our broader guide on surplus funds after a tax sale and the Colorado state page for certificate and redemption mechanics.