Wisconsin Statutes Taxation (Ch. 70 to 79) § 75.01. Redemption

(1)(a) As used in this subsection, “recording” means the presentation of a tax deed to the register of deeds for record and acceptance of it.

(b) Any person, prior to the recording of a tax deed based on a tax certificate issued on land for nonpayment of taxes, may redeem the land described in the tax certificate. Redemption shall be made by paying to the county treasurer the amount of the unpaid taxes stated in the tax certificate plus the interest and penalty as provided under s. 74.47, computed from the date of accrual as specified in the tax certificate plus any other charges authorized by law to be imposed on the tax certificate following its issuance. If there is a redemption before the recording, the tax deed, as it relates to the land redeemed, shall be void.

(c) The provisions of this chapter relating to redemption, conveyance, rights of action, limitation and other proceedings shall apply to all swamp and overflowed lands that have been or may be contracted for sale by any county board.

(4)(a) Redemption of land subject to a tax certificate may be made in partial payments of not less than $20, unless the county treasurer agrees to accept a smaller amount. The making of partial payments shall not operate to extend the period of redemption.

(b) Each partial payment shall be applied first to pay all charges authorized by law, then to pay the interest and penalty accrued and then to pay the principal of the tax. The portion of the payment to be applied as principal shall be ascertained by dividing the amount of the payment by the sum of one plus a figure that is the product of either .01 or a decimal reflecting the applicable percentage under s. 74.47, multiplied by the number of months of delinquency, counting any part of a month as a full month. This amount of principal shall be deducted from the amount offered in payment and the remainder of it shall be the interest accrued from the date of accrual specified in the tax certificate on that portion of the tax that is offered to be paid. Interest on any new balance of principal sum shall be figured from the date of accrual specified in the tax certificate.