NY S08038

Amends the filing deadline for unincorporated business income tax returns classified as partnerships for federal tax purposes, moving the deadline from the 15th day of the fourth month to the 15th day of the third month following the close of a taxable year for taxable years beginning on or after January 1, 2016.

Removes the distinction between filing deadlines for taxable years beginning before and after January 1, 2016 for non-partnership unincorporated businesses, maintaining the 15th day of the fourth month deadline.

Changes the treatment of prepaid and estimated tax payments for partnerships, deeming them paid on the 15th day of the third month (instead of the fourth month) following the close of the taxable year for taxable years beginning on or after January 1, 2016.

Modifies the decedent return filing deadline rules to align with the new partnership filing timeline for taxable years beginning on or after January 1, 2016.

Takes effect immediately upon enactment.