Modifying Custody, Support, or Alimony in Connecticut

Custody and parenting plans, child support, and alimony are all modifiable in Connecticut, subject to the terms of the judgment. Property division is not. Once the marital estate has been divided, that allocation is final and is not revisited because an asset later appreciated or a business later failed.

Alimony carries an exception worth checking first: parties can agree to make an alimony award non-modifiable as to amount, as to term, or both. If the separation agreement says non-modifiable, the analysis usually ends there.

For support and alimony, C.G.S. § 46b-86(a) permits modification upon a showing of a substantial change in the circumstances of either party. For child support, the Guidelines add an independent trigger: a deviation of fifteen percent or more between the existing order and the current guidelines figure.

For custody, modification requires a material change in circumstances since the last order and a finding that the change serves the child's best interests. Both halves are required, a change alone is not enough.

What typically qualifies: involuntary job loss, a substantial and durable increase or decrease in income, serious illness or disability, retirement, a significant change in the parenting schedule, relocation, or a child's changed needs. What typically does not: a temporary dip, a voluntary reduction in earnings, or dissatisfaction with a bargain freely struck.

A modification is retroactive, at the earliest, to the date the motion is served on the other party, not to the date the change occurred. A parent who loses a job in January and files in September has, in practical terms, forfeited eight months of relief.

The rule cuts both ways. A parent entitled to an increase who waits a year to file has waived that year. The operational advice is simple: when the change happens, file, then negotiate.

Alimony terminates on the remarriage of the recipient unless the agreement says otherwise. Cohabitation is governed by C.G.S. § 46b-86(b), which permits modification or termination where the recipient is living with another person under circumstances that alter their financial needs. Cohabitation is not automatic termination, the statute requires a change in financial circumstances arising from the living arrangement.

Retirement is increasingly litigated. A good-faith retirement at a customary age can constitute a substantial change; an early retirement structured to reduce an obligation generally does not.

A post-judgment motion to modify is filed and served, both parties file current sworn financial affidavits, the matter is typically referred to Family Relations for a case management or mediation conference, and it is either resolved by agreement or heard by the court.

Many modifications settle. The ones that do not are usually the ones where the underlying change is disputed rather than the arithmetic.