If a rate under s. 71.27 changes during a taxable year, the taxpayer shall compute the tax for that taxable year by the methods applicable to the federal income tax under section 15 of the internal revenue code.
Wis. Stat. § 71.275
Rate changes
1989 a. 31.
Official source: Wisconsin State Legislature. Reproduced from public-domain Wisconsin statutes; confirm against the official source for the current text. Not legal advice.