Ind. Code § 30-4-3-6
(b) Unless the terms of the trust or the provisions of section 1.3 of this chapter provide otherwise, the trustee also has a duty to do the following:
(7) Keep the following beneficiaries reasonably informed about the administration of the trust and of the material facts necessary for the beneficiaries to protect their interests:
(B) A beneficiary who will become an income beneficiary upon the expiration of the term of the current income beneficiary, if the trust has become irrevocable by:
(ii) the death of the settlor.
A trustee satisfies the requirements of this subdivision by providing a beneficiary described in clause (A) or (B), upon the beneficiary's written request, access to the trust's accounting and financial records concerning the administration of trust property and the administration of the trust.
(8) Upon:
(A) the trust becoming irrevocable:
(B) the written request of an income beneficiary or remainderman;
promptly provide a copy of the complete trust instrument to the income beneficiary or remainderman.
(12) Determine the trust beneficiaries by acting on information:
(B) with respect to heirship, relationship, survivorship, or any other issue relative to determining a trust beneficiary.
Formerly: Acts 1971, P.L.416, SEC.4. As amended by P.L.198-1996, SEC.1; P.L.137-1999, SEC.2; P.L.238-2005, SEC.32; P.L.51-2014, SEC.21; P.L.83-2014, SEC.8; P.L.5-2015, SEC.63.