Child support in Marietta: how it is calculated
Child support in Marietta is set by Georgia's statewide guidelines — Cobb County courts apply the same table as every other county. Here is the calculation, with the statute it comes from.
Where a Marietta case goes
A Marietta case is filed in the Georgia court for Cobb County, which applies the state guideline below. Local practice affects timing and paperwork, not the guideline amount. Marietta has about 63,122 residents (Census Bureau, 2024 estimate).
Open the full Georgia child support calculator → — same formula, with every input, the statute (O.C.G.A. § 19-6-15(o) Basic Child Support Obligation Table (as amended by SB 454, eff. July 1, 2024)) and the date it was last checked.
Formula
Schedule by combined adjusted gross income ($800–$40,000/mo), payer owes income share
Type
Income-shares model
Does Marietta have its own rule?
No. O.C.G.A. § 19-6-15(o) Basic Child Support Obligation Table (as amended by SB 454, eff. July 1, 2024) applies across Georgia, so a case from Marietta is decided by the same numbers as one filed anywhere else in the state. What changes locally is the courthouse, the clerk's procedure and how long the docket takes — not the amount.
What the statute says
O.C.G.A. § 19-6-15(o) Basic Child Support Obligation Table (as amended by SB 454, eff. July 1, 2024) — Georgia basic child support obligation table (income shares, combined adjusted gross income). Georgia uses the parents' combined monthly ADJUSTED GROSS income (gross income less self-employment tax, pre-existing support orders and any theoretical support for other qualified children). The Basic Child Support Obligation Table in O.C.G.A. § 19-6-15(o), rewritten by SB 454 and published by the Georgia Child Support Commission effective July 1, 2024, runs from $800 to $40,000 in $50 steps; § 19-6-15(b)(4) says to use the income bracket most closely matched to the combined income, so this tool picks the nearest row. Above $40,000 the statute sets the obligation at the top-row amount and allows only an upward deviation, so no percentage is added. Work-related child care and the children's health insurance premium are added and split by income share; since January 1, 2026 the low-income adjustment table (§ 19-6-15(p)) and the mandatory parenting-time adjustment also apply and are not modeled here.
Last checked 2026-09-11; figures pending final verification against the current statute or schedule. Read the source →
Also for Marietta
Other Georgia cities
Atlanta · Columbus · Augusta · Macon-Bibb County · Savannah · Athens · South Fulton · Sandy Springs · Roswell · Warner Robins · Johns Creek · Mableton
Everything StateTally tracks for Georgia → · Child Support in every city →