Tax lien calculator
Use the right tax-sale calculator before you decide what to bid.
A calculator helps you organize your own assumptions. It does not predict actual returns, confirm a property’s value, clear title risk, or replace the current county rules. TaxLienSimple shows the range to consider and the amount where you should stop.
Tax Lien ROI Calculator
See an illustrative return after the holding period and costs you enter.
Open the tool →Maximum Bid Calculator
Set a preferred bid range and a firm amount you will not exceed.
Open the tool →Interest Calculator
Model illustrative interest in states where interest accrues over time.
Open the tool →Redemption Countdown
Estimate an expected redemption date from the sale terms you enter.
Open the tool →Startup Cost Calculator
Keep registration, research, recording, and reserve money separate from your bid.
Open the tool →Portfolio Projector
Test how several conservative assumptions affect a possible portfolio.
Open the tool →State Comparator
Compare state structure, timing, and investor-fit factors before you choose where to research.
Open the tool →Use the number safely
- 1. Use conservative inputs.
Include costs and uncertainty instead of assuming the best possible outcome. - 2. Check the sale type.
Interest, penalty, premium, and redemption calculations differ by state and sale. - 3. Keep a hard stop.
The hard stop is not a recommended bid; it is the limit you should not exceed.
How the returns work (illustrative, at statutory rates)
Want the mechanics behind these numbers?
Academy Module 2A walks through how interest, penalty, and redemption periods combine into a real return.
Watch: How the money works — interest, penalty, and redemption math →