Bid-down yield calculator

See how a lower bid-down rate changes the return you may earn.

Enter a lien amount, the rate that remains after bidding, expected redemption time, and costs. This is a planning estimate—not a promise that the certificate will redeem or be collectable.

Your assumptions

Use cautious inputs. You can change every number.

Confirm the current sale terms first. A calculator cannot verify the sale, clear title, value a property, or predict redemption.

Illustrative result

$150

estimated profit after entered costs

Winning rate
12.00%
Gross interest
$300
Costs reserved
$150
Net cash result
$150
Set a maximum bid next →
1. Verify the structure.
Use the correct tool only after confirming whether the sale uses a bid-down rate, premium, interest, or penalty.
2. Reserve real costs.
Include registration, recording, research, later taxes, notices, legal guidance, and contingency cash.
3. Keep a hard stop.
If the deal only works in the best case, lower the bid or walk away.

Bid-Down Yield FAQ

What does bidding down the interest rate do to my return?+

In a bid-down state the certificate is awarded to whoever accepts the lowest interest rate, so every point you bid below the statutory maximum comes straight off the yield. The calculator applies your bid rate, your costs and the redemption timing you expect, and shows the return that is left.

Why does redemption timing matter so much?+

Interest accrues only while the certificate is outstanding. A lien redeemed in three months earns a quarter of the annual rate on the principal, but your fixed costs (registration, recording, research) are the same, so short redemptions can turn a good-looking rate into a thin or negative result.

Is the result a forecast of what I will earn?+

No. It is arithmetic on the assumptions you enter. Actual outcomes depend on the county's current sale terms, whether and when the owner redeems, later taxes you may have to pay, and fees. Confirm the rules on the county page before you rely on any figure.