Indiana Code Title 6. Taxation § 6-3-4-15.1

(1) prescribe procedures by which a pass through entity remits tax on behalf of partners, shareholders, and beneficiaries who are considered residents for purposes of those sections in the same manner as tax is remitted for partners, shareholders, and beneficiaries who are considered nonresidents for purposes of those sections, provided that such procedures do not relieve filing requirements otherwise applicable to partners, shareholders, and beneficiaries who are considered residents for purposes of those sections;

(2) prescribe special procedures for persons or entities that are otherwise subject to withholding under those sections but who may have circumstances such that a standard tax computation may result in excess withholding;

(3) prescribe procedures for individuals and trusts that are residents for part of the taxable year and nonresidents for part of the taxable year;

(4) prescribe procedures by which an entity subject to those sections may request alternative withholding arrangements, provided that such arrangements do not jeopardize the tax otherwise due under IC 6-3 or IC 6-5.5;  and

(5) prescribe procedures and guidelines by which a partner, shareholder, or beneficiary may elect to not be subject to withholding, in whole or in part, provided that:

A failure by the pass through entity to obtain an election for a taxable year or to attach the election to the pass through entity's return for a taxable year shall be treated as if the election was not made for the taxable year.