About this calculator

Source of truth

The calculation engine implements Tenn. Comp. R. & Regs. Chapter 1240-02-04 (the Tennessee Child Support Guidelines). The BCSO Schedule, above-cap rates, statutory PCSO maximums, SSR amount, and imputation defaults are loaded from the official 2022 TN DHS Income Shares Worksheet.

Schedule effective date: 2021-10-01
BCSO rows: 2,815 (563 AGI levels × 5 child counts)
Above-cap formula verified row-by-row against the official .xlsm
Verification benchmarks pass within $1 of the official worksheet

What this does NOT do

Split parenting (different children with different primary parents)
Non-parent caretaker situations
Alimony (separate analysis under T.C.A. § 36-5-121)
Retroactive support at prior-period schedules
Significant variance for modification (calculate both and compare manually)

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. Outcomes in any specific case depend on facts, evidence, judicial discretion, and deviation analysis that this tool does not perform. Consult a licensed Tennessee attorney before relying on any number produced by this calculator.

Maintained by

TCB Law, PLLC.