Calculator

Enter both parents' monthly gross incomes, the number of children, and the parenting arrangement. The calculator combines income, reads the basic obligation off the FL schedule, prorates by income share, and applies add-ons, the parenting adjustment, and any deviation you specify. Free, no signup.

Schedule effective 2023-07-01. How it works · About this calculator

Income (net = gross − deductions)

Florida runs the schedule on combined net income. Enter each parent's gross, then the actual monthly deductions from their financial affidavit (Form 12.902(e)) — including their actual federal income tax and FICA. The calculator sums them; it does not estimate tax.

Parent A

Gross monthly income

Federal income tax (actual, from return/affidavit)

FICA / self-employment tax (actual)

Mandatory union dues

Mandatory retirement

Health insurance — this parent only (not the children's)

Court-ordered support for other children (actually paid)

Spousal support paid

Net monthly income$0

Parent B

Gross monthly income

Federal income tax (actual, from return/affidavit)

FICA / self-employment tax (actual)

Mandatory union dues

Mandatory retirement

Health insurance — this parent only (not the children's)

Court-ordered support for other children (actually paid)

Spousal support paid

Net monthly income$0

Children & parenting

Number of children

Parenting arrangement

Standard — one parent is the residential/custodial parentApproximately equal / shared (50-50)Custom — specify overnights with each parent

When a parent has at least 20% of the overnights (73/year), Florida mandates the substantial-time-sharing gross-up: the basic obligation is multiplied by 1.5 and cross-multiplied by each parent's overnight share, then offset. Below 73 overnights there is no gross-up (only a discretionary deviation). Enter each parent's overnights with the 'Custom' option.

Paying (non-residential) parent

Add-ons (pro-rated by income share)

Health insurance (children's portion)

Paid by

Work-related childcare

Paid by

Extraordinary uninsured medical

Paid by

Deviation (optional)

A court-ordered adjustment to the presumptive amount, supported by written findings. Enter a monthly dollar amount.

Deviation amount / mo

Direction