Correction of certain errors regarding the taxable year to which a deductible contribution is attributed requirement provision

This bill corrects a technical error in Minnesota's tax rules for retirement contributions. It requires annuity providers to treat eligible contributions made by a federal deadline as if they were for the *previous* tax year, but only if the individual notifies the provider within three years of the original tax filing deadline. The change applies retroactively only to contributions made in 2023. It directly affects individuals who contribute to retirement plans and annuity providers handling those contributions.