Investing guides / Iowa

Iowa tax sale investing: buy the tax debt, earn the rate

Quick answerIowa sells tax lien certificates for unpaid property taxes. Lien buyers can earn 2% per month / 24% per year, fixed by statute (Iowa Code 447.1); the rate is not bid down - bidders compete by bidding down the undivided interest percentage in the parcel they would take on a deed, and many counties assign contested parcels by random / rotational selection among registered bidders.. Redemption: The holder may serve a notice of expiration of the right of redemption after 1 year and 9 months from the sale; redemption ends 90 days after completed service of that notice (Iowa Code 447.9, 447.12), so the effective minimum hold is about 2 years. Sales: Annual tax sale on the third Monday in June in every county (Iowa Code ch. 446), with adjourned sales for unsold parcels thereafter. Governing law: Iowa Code chs. 446 (tax sale), 447 (redemption) and 448 (tax deeds), esp. 446.16, 447.1 and 447.9.

How it works in Iowa

In Iowa you are not buying property at the sale — you are buying the county's tax lien certificate for the amount of taxes owed, and the owner owes you interest until they redeem.

Interest / penalty: 2% per month / 24% per year, fixed by statute (Iowa Code 447.1); the rate is not bid down - bidders compete by bidding down the undivided interest percentage in the parcel they would take on a deed, and many counties assign contested parcels by random / rotational selection among registered bidders.

Redemption: The holder may serve a notice of expiration of the right of redemption after 1 year and 9 months from the sale; redemption ends 90 days after completed service of that notice (Iowa Code 447.9, 447.12), so the effective minimum hold is about 2 years.

When sales happen: Annual tax sale on the third Monday in June in every county (Iowa Code ch. 446), with adjourned sales for unsold parcels thereafter.

Where sales run: GovEase hosts the online sale for many counties; other counties use Iowa Tax Auction (iowataxauction.com, SRI / Zeus / RealAuction). All bidding is online even where the treasurer hosts bidders at the courthouse.

Governing law: Iowa Code chs. 446 (tax sale), 447 (redemption) and 448 (tax deeds), esp. 446.16, 447.1 and 447.9

The investor's edge

Your edge is rate discipline: know the statutory maximum, know what the sale historically bids down to in your target counties, and set a floor rate you will not cross before the sale starts.

Because the 24% rate is fixed and parcels are often assigned rotationally, Iowa offers the full statutory rate without rate compression, but deed acquisition is rare given very high redemption rates. A parcel advertised twice and unsold must be offered at a public bidder sale, and the county is required to purchase delinquencies no private bidder takes.

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Full legal reference: Iowa tax sale laws. Verified 2026-10-30 against the sources on that page. Educational only, not investment advice.