How Long Do You Have to File for Post-Decree Modifications in Indiana?
Learn when you can modify or enforce a divorce decree in Indiana, including custody, child support, parenting time, and other post-decree changes.


Life after divorce does not always follow the terms of the original court order. A parent may lose a job. A child’s schedule may change. One parent may move. Support may no longer reflect the family’s real financial situation. Or one person may simply stop following the order.
When that happens, you may need to ask the court to modify or enforce the decree. In Indiana, the timeline depends on what you are trying to change.
Indiana does not have one single deadline for every post-decree modification. Custody may be modified when the change is in the child’s best interests and there has been a substantial change in circumstances. Child support may be modified when there is a substantial and continuing change that makes the current order unreasonable, or when the current amount differs by more than 20% from the guideline amount and the order is at least 12 months old. Enforcement should be addressed as soon as possible if the other party is not following the order.
Sometimes, yes, but you need a valid reason. Indiana courts usually will not change an order just because one party is unhappy with it. The person asking for the change must show that circumstances have changed enough to justify court involvement.
The larger the change, the stronger the request may be. A minor inconvenience may not be enough. A major change in income, a child’s needs, a parenting schedule, a parent’s relocation, or a safety concern may require a closer look.
A child custody order may be modified when two things are true: the change is in the child’s best interests, and there has been a substantial change in one or more of the statutory custody factors. Those factors include the child’s adjustment to home, school, and community; the child’s relationship with parents and siblings; the mental and physical health of those involved; and, in some cases, the child’s wishes. Indiana law gives more consideration to a child’s wishes once the child is at least 14, but the child does not make the final decision.
There is not a simple “wait this many months” rule for every custody change. If something serious happens, a parent may need to act quickly.
Child support has a more specific standard. Under Indiana child support rules, support may be modified if there is a substantial and continuing change of circumstances that makes the current order unreasonable. It may also be modified if the current support amount differs from the guideline amount by more than 20% and the existing support order is at least 12 months old.
Examples may include a major income change, a new parenting time schedule, changes in health insurance costs, childcare cost changes, or other financial changes that affect the child support calculation.
Modification and enforcement are different. A modification asks the court to change the order. Enforcement asks the court to make the other party follow the order that already exists.
You may need enforcement if the other party is not paying support, refusing parenting time, failing to transfer property, ignoring debt obligations, or violating another part of the decree. In many situations, waiting only makes the problem harder to fix. Keep records, save messages, and document missed payments or denied parenting time.
Not the way many people think they do. If both parties agree to a new arrangement, that agreement should usually be put into a court order. Otherwise, the original order may still control.
For example, if parents informally agree to lower child support but never get court approval, the paying parent may still owe the original amount. A handshake agreement can create serious problems later.
A post-decree issue can affect your finances, your parenting time, and your daily life. Whether you need to change an existing order or enforce one that is being ignored, it helps to understand your options before the problem grows.
Lacy Law Office helps clients in Indianapolis and throughout Central Indiana with post-decree modifications and enforcement. Contact Lacy Law Office to discuss what has changed, what the current order says, and what steps may make sense next.