1. (a) Provisions of an order with respect to child support or an order for maintenance (ordered under IC 31-16-7-1 or IC 31-1-11.5-9 (c) before their repeal) may be modified or revoked.

2. (b) Except as provided in section 2 of this chapter, and subject to subsection (d), modification may be made only:

   1. (1) upon a showing of changed circumstances so substantial and continuing as to make the terms unreasonable; or

   2. (2) upon a showing that:

      1. (A) a party has been ordered to pay an amount in child support that differs by more than twenty percent (20%) from the amount that would be ordered by applying the child support guidelines; and
      2. (B) the order requested to be modified or revoked was issued at least twelve (12) months before the petition requesting modification was filed.
3. (c) Modification under this section is subject to IC 31-25-4-17 (a)(6).

4. (d) Incarceration may constitute a change in circumstances so substantial and continuing as to make terms of an order unreasonable.

   [Pre-1997 Recodification Citation: 31-1-11.5-17(a) part.]

As added by P.L.1-1997, SEC.8. Amended by P.L.103-2007, SEC.19; P.L.94-2018, SEC.3.