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Tax Lien Interest Rates by State: What Investors Actually Earn

The headline rate is the starting point, not your return

Almost every article about tax lien investing leads with a big number: 18%, 24%, even 36%. Those numbers are statutory maximums — the rate bidding starts from, not the rate most investors take home. In the majority of lien states the auction is a bid-down: the investor willing to accept the lowest interest rate wins the certificate. Your actual return is the rate you bid, on the day, against whoever else showed up.

That single mechanic explains most disappointing tax lien outcomes. The strategy is sound; the expectation was set by the maximum instead of the market. Serious investors underwrite the likely winning rate in their target counties — in Maricopa County, Arizona, winning rates commonly compress to 0-3% against a 16% headline — not the number in the statute.

How bid-down works

Every bidder pays the same price for a certificate: the delinquent taxes, interest, and fees owed on the parcel. What differs is the return the bidder demands. Florida bidding starts at 18% per year and drops in quarter-percent increments; the lowest rate wins. Ohio works the same way up to 18%, Alabama's lien counties up to 12%.

Florida softens the downside with a mandatory minimum penalty: when the owner redeems, most certificates pay at least 5% on top of the taxes regardless of the bid rate or how fast redemption happens. New Jersey handles the end of bid-down differently — once the rate reaches 0%, bidders compete by paying a premium, and that premium earns no interest at all.

Rates in the major lien states

• Florida: 18% maximum, bid down in 0.25% increments; 5% mandatory minimum penalty on redemption of most certificates
• Arizona: 16% maximum, bid down; simple interest, and a fraction of a month counts as a full month
• New Jersey: 18% maximum, bid down; at 0%, bidding converts to premiums that earn no interest
• Iowa: 24% per year (2% per month), FIXED by statute — no rate bidding; investors bid down the percentage interest in the parcel instead
• Ohio: up to 18%, bid down, in counties large enough to sell certificates
• Alabama (lien counties): up to 12%, bid down in 1% increments
• Illinois: penalty bid down from 9% per 6-month period — see the warning below

The figures everyone quotes that are no longer true

Tax lien content ages badly because legislatures keep changing the math, and old articles never get updated. Two examples every investor should know. Illinois is still widely quoted at an 18% penalty per six months — that was the pre-2022 law. Public Act 102-0363 cut the maximum to 9% per six-month period (18% annualized), and the redemption periods for several property classes changed again for certificates issued from 2024 onward.

West Virginia is the extreme case: older guides describe a 12% lien investment. Senate Bill 552, effective June 2022, eliminated buyer interest entirely — a redeeming owner now repays what the purchaser paid plus statutory fees, and nothing more. West Virginia liens are now purely a path-to-deed play. Any rate table that does not carry a date and a statute citation should be treated as decoration, not data. LienToDeed's state law pages are built from the statutes and stamped with a verification date for exactly this reason.

Redeemable-deed premiums are not interest

Texas and Georgia do not pay lien interest at all — they sell redeemable deeds with flat redemption premiums. A Texas buyer receives 25% of the purchase price if the owner redeems in year one and 50% in year two (the 50% tier applies to homestead, agricultural, and mineral property). Georgia pays 20% for the first year and 10% per additional year. These are premiums on redemption, not annual rates, and they are owed even if the owner redeems quickly — which is why a fast redemption in Texas can be a better outcome than a slow one.

Comparing a Texas 25% premium to a Florida 18% bid-down rate is comparing two different instruments. Underwrite each state on its own mechanics.

What actually determines your return

Four things: the rate or premium you actually win at, how quickly the owner redeems, whether your state pays a minimum penalty on fast redemptions, and how much competition your county draws. The statute sets the ceiling. The auction sets your number. Investors who track winning-rate patterns county by county — and get alerted when new properties are listed so they can research before sale day — consistently make better bids than investors working from a national rate chart.

Questions

Which state has the highest tax lien interest rate?
Iowa's fixed 2% per month (24% per year) is the highest widely available lien rate, and it is not bid down — competition there is over the ownership percentage, not the rate. Most bid-down states start at 16-18% and finish far lower in competitive counties.

Do I earn the full 18% in Florida?
Only if you win at 18%, which happens mainly on certificates with no competition — and unsold certificates struck to the county are available over the counter at 18%. On contested certificates you earn your winning bid rate, with a 5% minimum penalty on redemption of most certificates as a floor.

Why do some sources say Illinois pays 18% per six months?
Because it used to. That was the maximum before Public Act 102-0363, effective 2022, cut it to 9% per six-month period. Sources repeating the old figure are out of date — check the statute, not the blog post.

Is West Virginia still a good lien state?
Not for yield. Since Senate Bill 552 took effect in June 2022, West Virginia purchasers earn 0% interest; the play there is acquiring the deed, not collecting interest. It remains on many 'top lien states' lists that have not been updated.