Ind. Code § 6-3-4-15
(a) A trust or estate shall, at the time that it distributes income (except income attributable to interest or dividends) to a nonresident beneficiary, deduct and retain therefrom the amount prescribed in the withholding instructions referred to in section 8 of this chapter. The trust or estate so distributing income to a nonresident beneficiary:
(2) shall pay the amount deducted to the department before the thirtieth day of the month following the distribution, unless an earlier date is specified by section 8.1 of this chapter.
If a trust or estate credits a beneficiary with pass through entity tax imposed under IC 6-3-2.1 , the withholding required for that beneficiary under this section shall be reduced by the tax credited to the beneficiary under IC 6-3-2.1 , but in no event shall the tax required to be withheld be reduced to less than zero dollars ($0).
(i) If a trust or estate does not include all nonresident beneficiaries that have distributable net income from the trust or estate:
(2) derived from Indiana sources;
of greater than zero dollars ($0) in the composite return, the trust or estate is subject to the penalty imposed under IC 6-8.1-10-2.1 (j).
(j) For purposes of this section, a "nonresident beneficiary" is:
(k) If a trust or estate is permitted an extension to file its income tax return under IC 6-8.1-6-1 , then the return and payment due under this subsection shall be allowed the same treatment as the extended income tax return with respect to due dates, interest, and penalties under IC 6-8.1-6-1 .
As added by Acts 1977(ss), P.L.4, SEC.13. Amended by Acts 1979, P.L.68, SEC.6; Acts 1982, P.L.49, SEC.6; P.L.2-1982(ss), SEC.12; P.L.242-2015, SEC.20; P.L.181-2016, SEC.28; P.L.1-2023, SEC.10; P.L.48-2026, SEC.4.