The Federal 3-Year Child Support Review —
The Window Most Dads Let Close

This is not a loophole. It is a federal mandate under 42 U.S.C. § 666(a)(10). Every state that receives federal child support funding — which is all of them — must offer this review. The review recalculates support using both parents' current incomes and applies current state guidelines, which change over time. If circumstances have shifted in three years — income, custody time, expenses — the review produces a new amount that reflects current reality.

What "Three Years" Means — And How to Check If You're Eligible

The three-year clock runs from the date your current support order was entered — not from any previous review or request. Pull out your support order. Find the date it was signed by the judge. Count 36 months forward. If that date has passed, your three-year review window is open right now.

If you've had a modification approved within the last three years, the clock resets from that new order date. If your last order was more than three years ago and you haven't used the review, you've been leaving this option on the table every month since the window opened.

What the Review Actually Does — and What It Can't Do

The review uses both parents' current incomes and applies your state's current child support guidelines to recalculate the support amount. If your income has dropped, your co-parent's income has increased, or your custody schedule has changed — all of these affect the recalculation. If the new amount differs from your current order by your state's threshold (typically 10–15%), the agency issues a new order.

What the review cannot do: it cannot change custody. It cannot modify your parenting plan. It cannot order make-up parenting time or address behavioral issues. It is a financial recalculation only. But for most Dads whose only goal is a lower monthly payment — that's exactly what they need.

Why Income Changes on Both Sides Matter — Not Just Yours

Most Dads think about modification only when their own income drops. The 3-year review is valuable even when your income hasn't changed — because child support is calculated on both parents' incomes. If your co-parent has received promotions, changed careers, or significantly increased their earnings in the last three years, that shift can produce a lower support obligation for you even with no change on your side.

The review also applies current state guidelines. Many states have updated their child support guidelines over the past few years. An order calculated under 2019 guidelines may produce a different amount under 2024 guidelines even with identical income figures. The review catches those changes automatically.

When the Review Leads to More — and When to Protect Yourself

The 3-year review can go both ways. If your income has increased since the original order while your co-parent's has not, the review could produce a higher support amount. Before submitting a request, calculate both scenarios using your state's online child support calculator with current income figures for both parents. If the recalculation is likely to increase your obligation, the review may not be the right tool for your situation — and a different strategy is appropriate.

If you're uncertain about what the recalculation will produce, run the numbers privately before submitting the request. Your state's child support calculator is free and anonymous. A 10-minute calculation before submission tells you which direction the review is likely to go.

The Review Can Be Requested Without a Lawyer,
Without a Court Filing, and Without Your Co-Parent's Consent.