TCBChild Support Calculator

About this calculator

Source of truth

The engine implements the Georgia child support guidelines (O.C.G.A. § 19-6-15), an income-shares model, as amended by SB 454. The Basic Child Support Obligation table and the low-income adjustment table are loaded from the codified statute.

  • Effective date: 2026-01-01 (SB 454 parenting-time and low-income provisions eff. 1/1/2026)
  • BCSO rows: 785 (to $40,000/mo combined), 1–6 children; nearest-$50 lookup
  • Low-income adjustment table (p): 49 rows, plus the below-$1,500 percentage branch
  • Parenting-time cross-credit oracle-validated to the cent against the statutory arithmetic

How the order is built

Both parents' adjusted gross incomes are combined; the basic obligation is read from the schedule and prorated by income share. The mandatory parenting-time cross-credit (§ 19-6-15(g)) then adjusts the noncustodial parent's share on a continuous power-of-2.5 day curve — the credit grows steeply as that parent's court-ordered overnights rise, with no threshold or cliff. Schedule D add-ons (health insurance + work-related child care) are mandatory and prorated. The low-income adjustment (§ 19-6-15(i.1)) caps a low-income parent's order at the lesser of the presumptive amount and the (p) table value (a percentage of income below $1,500). Above $40,000 combined the court sets the top-row amount and may deviate up.

What this does NOT do

  • The discretionary above-$40,000 increment (needs best-interest findings)
  • Fill an AcroForm worksheet — Georgia's official tool is an Excel calculator, not a fillable PDF
  • Alimony as an income deduction (in GA it is a deviation, not a deduction)
  • The Schedule E deviations beyond a single entered amount (enter the net deviation)

The parenting-time arithmetic was validated against a law-firm reproduction of the statutory steps (matched to the cent); a run through the Commission's official calculator would close it belt-and-suspenders. Final-order figures carry cents (the statute prescribes no rounding step).

Other states

Calculators for seven Southeastern states are on the state picker, with more planned.

Disclaimer

This tool produces an estimate based on the inputs you provide. It is not legal advice and does not create an attorney-client relationship. Consult a licensed Georgia attorney before relying on any number produced here.

Maintained by

TCB Law, PLLC.