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An Adams tax lien can grow when later taxes go unpaid

A Porch Note from Colorado Porch — plain-English local details for all 64 Colorado counties.

A tax lien in Adams County does not stay frozen at the amount it sold for. While a lien sits unredeemed, the certificate holder has the right to pay the property’s later years’ delinquent taxes too. This is called sub-taxing, and it has real teeth: subsequent taxes, special assessment liens, and current taxes all have to be cleared before anyone can move forward with a Treasurer’s Deed application.

The practical effect is that the debt compounds quietly in the background. Each year the owner misses, the lien holder can step in, cover that bill, and roll it onto the certificate. A payoff figure that looked right last spring can be stale by the next, because more years may have been added to it since.

For the owner, this is the strongest argument for keeping current taxes current even while wrestling with an older lien; letting a new year lapse hands the lien holder one more piece to attach. For anyone bidding, buying out a certificate, or helping a relative untangle one, the original lien amount is the wrong anchor to plan around. The number that matters is today’s full redemption figure and account status from the Treasurer and Public Trustee, which reflects every year that has since piled on. Ask for that current total before treating any older figure as the bottom line.

Sources

Official or primary sources used for this note. Local details can change, so confirm before acting.

Reviewed: June 23, 2026 Adams County Tax Lien Sale

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