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Florida Child Support Calculator

Updated Jul 24, 2026 By Jehan Wadia
Rate Formulas
Section A — Parent Net Monthly Income (Line 1)
Use your net (take-home) income after taxes. See Financial Affidavit Form 12.902(b) or (c), Line 27.
Use your net (take-home) income after taxes. See Financial Affidavit Form 12.902(b) or (c), Line 27.
Auto-calculated: Parent A + Parent B.
Section B — Number of Children
123456
The statutory schedule (§61.30(6)) covers 1 through 6 children.
Section C — Basic Monthly Obligation (Line 2, §61.30(6))
Section D — Each Parent's Share of Financial Responsibility (Line 3)
Section E — Each Parent's Share of Basic Obligation (Line 4)
Section F — Additional Monthly Costs (Line 5)
Monthly child care attributable to employment or job search.
Do not include the parent's own coverage cost.
Uninsured recurring child medical costs.
Section G — Each Parent's Share of Additional Costs (Line 6)
Section H — Payments Actually Being Made (Line 7, §61.30(8))
Parent A
Parent B
Section I — Total Payments Actually Made (Line 8)
Section J — Minimum Child Support Obligation Per Parent (Line 9)
Section K — Substantial Time-Sharing Adjustment (Lines 10–21)
Line 12 — Overnight Stays Per Year
Parent A share: —
Parent B share: —
73 nights = 20% threshold | 182–183 nights = equal time-sharing.
Lines 14a–14d are carried over from Line 5.
Lines 16a–16c are carried over from Line 7.
Parent A
Parent B
—

Estimated Child Support

$0.00 / month

Obligation Breakdown by Parent
Share of Financial Responsibility
Step-by-Step Solution
This table reflects Florida's Child Support Guidelines Schedule under §61.30(6), Fla. Stat. Values shown represent the minimum monthly child support obligation before additional costs and adjustments.
The row matching your Tab 1 combined income is highlighted automatically.
Florida Child Support Guidelines Schedule — §61.30(6), Fla. Stat.
Combined Net Monthly Income 1 Child 2 Children 3 Children 4 Children 5 Children 6 Children

Introduction

This Florida child support calculator follows the guidelines in Florida Statute §61.30. It uses each parent's net monthly income, the number of children, and overnight time-sharing to estimate how much child support one parent may owe the other.

The calculator walks through every line of the official Florida child support guidelines worksheet. It covers the basic support obligation, additional costs like child care and health insurance, payment credits, and the substantial time-sharing adjustment that applies when both parents have at least 73 overnights per year.

Enter your numbers in each section below. The tool will show your results, a full step-by-step breakdown of the math, and charts that compare each parent's share. You can also view the full Florida child support guidelines table under the Guidelines Table tab.

This calculator gives an estimate only. A Florida court may adjust the final amount based on factors specific to your case. Talk to a licensed Florida family law attorney for legal advice.

How to Use Our Florida Child Support Calculator

Enter each parent's income, number of children, monthly costs, payments already being made, and overnight stays. The calculator will estimate the monthly child support amount one parent may owe the other under Florida law (§61.30).

Parent A — Net Monthly Income: Enter Parent A's monthly take-home pay after taxes. This is the amount on their paycheck, not their gross salary. You can use our Florida paycheck calculator or refer to Florida Financial Affidavit Form 12.902, Line 27 to find this number. If you need to convert an annual salary into a monthly figure, try our monthly income calculator.

Parent B — Net Monthly Income: Enter Parent B's monthly take-home pay after taxes, the same way you did for Parent A.

Number of Children: Pick the number of children shared by both parents. You can choose from 1 to 6 using the dropdown or the slider.

Child Care Costs (Line 5a): Enter the total monthly cost of child care needed so a parent can work or look for a job. This includes daycare, after-school care, and summer programs.

Health Insurance for Children (Line 5b): Enter the monthly cost of health insurance that covers only the children. Do not include the cost of a parent's own coverage.

Noncovered Medical, Dental, and Prescription Costs (Line 5c): Enter the average monthly out-of-pocket medical, dental, or prescription costs for the children that insurance does not cover.

Parent A — Child Care Payments Made (Line 7a): Enter how much Parent A already pays each month toward child care costs.

Parent A — Health Insurance Payments Made (Line 7b): Enter how much Parent A already pays each month for the children's health insurance.

Parent A — Other Noncovered Medical Credits (Line 7c): Enter how much Parent A already pays each month for the children's medical costs not covered by insurance.

Parent B — Child Care Payments Made (Line 7a): Enter how much Parent B already pays each month toward child care costs.

Parent B — Health Insurance Payments Made (Line 7b): Enter how much Parent B already pays each month for the children's health insurance.

Parent B — Other Noncovered Medical Credits (Line 7c): Enter how much Parent B already pays each month for the children's medical costs not covered by insurance.

Parent A — Overnights Per Year: Enter how many nights per year the children sleep at Parent A's home. Use the number box or the slider. If both parents have 73 or more overnights, the calculator applies Florida's substantial time-sharing adjustment.

Parent B — Overnights Per Year: Enter how many nights per year the children sleep at Parent B's home. The total for both parents must equal 365.

Florida Child Support Calculator

This calculator helps you estimate how much child support one parent may owe the other under Florida law. It follows the guidelines found in Florida Statute §61.30, which is the law courts use to figure out child support amounts in the state. If you are looking for a general overview or live in another state, see our main child support calculator or our Texas child support calculator for comparison.

How Florida Child Support Works

In Florida, child support is based on both parents' net monthly income. Net income is the money you take home after taxes and required deductions. If you are unsure what your net income is, our take home pay calculator can help you figure it out, or you can use our Florida paycheck calculator for a state-specific estimate. The state has a chart that shows a base support amount for each income level and number of children. Both parents share this cost based on how much each one earns.

On top of the base amount, the court adds other costs like child care, health insurance for the children, and medical bills not covered by insurance. Each parent pays their percentage share of these costs, too. If a parent already pays some of these costs directly, they get credit for those payments.

What Is Substantial Time-Sharing?

If both parents have the children for at least 73 overnights per year (about 20% of the time), Florida law calls this "substantial time-sharing." When this applies, the calculation changes. The base obligation is multiplied by 1.5, and each parent's overnight percentage is used to split the cost. This usually lowers the final support amount because both parents are already spending money on the children while they are in their care.

What This Calculator Does

This tool walks through each line of the Florida Family Law Rules of Procedure Form 12.902(e), which is the official child support guidelines worksheet. You enter each parent's income, the number of children, additional costs, payments already being made, and overnight counts. The calculator does the math for every line and shows you the estimated monthly child support amount. It also gives you a step-by-step breakdown so you can see exactly how the number was reached.

If you are also dealing with spousal support (alimony), keep in mind that alimony payments can affect net income and therefore change the child support calculation. You may also want to use our budget calculator to plan around your new financial obligations, or our salary to hourly calculator if you need to convert your pay for the worksheet.

Important: This calculator gives an estimate only. A judge can adjust the final amount up or down by up to 5% based on the family's specific situation, and in some cases even more with written reasons. Always speak with a Florida family law attorney for advice about your case.

Formulas used

Each Parent's Percentage Share (Line 3)
\text{Share}_{\text{A}} = \frac{\text{Income}_{\text{A}}}{\text{Income}_{\text{A}} + \text{Income}_{\text{B}}} \times 100\%
Each Parent's Share of Basic Obligation (Line 4)
L4_{\text{A}} = \text{Basic Obligation} \times \text{Share}_{\text{A}}
Minimum Child Support Obligation (Line 9)
L9 = \max\!\left(0,\; L4 + L6 - L8\right)
Increased Basic Obligation for Time-Sharing (Line 10)
L10 = \text{Basic Obligation} \times 1.5
Cross-Multiplied Overnight Adjustment (Line 13)
L13_{\text{A}} = L11_{\text{A}} \times \frac{\text{Overnights}_{\text{B}}}{365}, \quad L13_{\text{B}} = L11_{\text{B}} \times \frac{\text{Overnights}_{\text{A}}}{365}
Each Parent's Total Transfer (Lines 19–20)
L19 = L13_{\text{A}} + \max\!\left(0,\; L15_{\text{A}} - L17_{\text{A}}\right), \quad L20 = L13_{\text{B}} + \max\!\left(0,\; L15_{\text{B}} - L17_{\text{B}}\right)
Net Child Support Transfer (Line 21)
\text{Net Transfer} = \left|\, L19 - L20 \,\right|

Frequently asked questions

What income do I enter into the Florida child support calculator?

Enter each parent's net monthly income. This is the money you take home after taxes and required deductions like Social Security and Medicare. Do not use your gross (before-tax) salary. You can find this number on your pay stub or on Florida Financial Affidavit Form 12.902(b) or (c), Line 27.

What counts as net income under Florida Statute §61.30?

Net income includes wages, salary, bonuses, commissions, tips, business income, disability benefits, workers' compensation, unemployment, pensions, Social Security, rental income, and other recurring sources. You subtract federal and state taxes, FICA, mandatory union dues, and health insurance premiums for the parent only. The full list is in §61.30(2) and §61.30(3).

What if a parent is unemployed or underemployed?

Florida courts can impute income to a parent who is voluntarily unemployed or underemployed. This means the court assigns an income based on what that parent could earn given their work history, education, and local job market. If this applies, enter the imputed amount as that parent's net monthly income.

What happens if our combined income is below $800 per month?

The Florida guidelines table starts at $800 per month. If your combined net income is below that, the calculator cannot compute a guideline amount. The court will decide the support amount on a case-by-case basis.

What happens if our combined income is above $10,000 per month?

The guidelines table goes up to $10,000. For income above that, the calculator adds a percentage of the excess to the $10,000 base amount, as allowed under §61.30(1)(b). The percentage depends on the number of children.

What does the 73-overnight rule mean?

If both parents have the children for at least 73 overnights per year, Florida law calls this substantial time-sharing. It triggers a different formula that multiplies the base obligation by 1.5 and then splits costs based on each parent's overnight percentage. This usually results in a lower support payment.

Why must the overnights add up to 365?

There are 365 nights in a year. Every night the child sleeps somewhere must be assigned to one parent. If the total is not 365, the percentages will be wrong and the calculation will not be accurate.

Who is Parent A and who is Parent B?

The labels Parent A and Parent B are just placeholders. It does not matter which parent you assign to which label. The calculator figures out who owes whom based on the incomes and overnights you enter.

What child care costs can I include?

You can include child care costs that are needed so a parent can work or search for a job. This covers daycare, before- and after-school programs, and summer care. Under §61.30(7), costs are capped at the rate charged by a licensed provider in the area.

What goes in the health insurance field?

Enter only the portion of the monthly health insurance premium that covers the children. Do not include the cost of covering a parent. If a parent's plan covers the parent and children together, you need to figure out the child-only portion.

What are noncovered medical costs?

These are out-of-pocket medical, dental, and prescription costs for the children that health insurance does not pay. Enter the average monthly amount. Examples include copays, deductibles, braces, glasses, and medications not covered by the plan.

What do the payment credits in Section H mean?

Section H tracks costs a parent is already paying directly, like child care bills or the children's health insurance premium. These payments reduce that parent's final obligation so they are not paying twice for the same expense.

What is the difference between Line 9 and Line 21?

Line 9 is the minimum obligation that applies when one parent has fewer than 73 overnights. Line 21 is the net transfer amount that applies when both parents meet the 73-overnight threshold for substantial time-sharing. The calculator tells you which line applies to your situation.

Can a judge change the amount this calculator shows?

Yes. A Florida judge can adjust the guideline amount by up to 5% without needing a special reason. The judge can also deviate by more than 5% if they give written findings explaining why. Common reasons include special needs of the child, higher-than-usual expenses, or other unique circumstances under §61.30(1)(a).

Does this calculator include alimony?

No. This calculator does not compute alimony. However, if one parent pays or receives alimony, that amount changes their net income. Subtract alimony paid or add alimony received before entering net income into the calculator.

How do I read the Guidelines Table tab?

The table shows the base monthly child support amount for combined net incomes from $800 to $10,000, broken out by 1 through 6 children. Find the row closest to your combined income and the column for your number of children. That number is the base obligation before additional costs and adjustments.

Does this calculator work for more than 6 children?

No. The Florida statutory schedule under §61.30(6) covers 1 through 6 children. If you have more than 6 children, the court will set the amount. You should speak with a family law attorney.

Is this calculator the same as the official court worksheet?

This calculator follows the same formulas and line numbers as Florida Family Law Form 12.902(e), the official child support guidelines worksheet. It is designed to match the court form, but it is an estimate tool and not a legal document you can file with the court.

Can I use this calculator for a child support modification?

Yes. If your income, the other parent's income, or your time-sharing schedule has changed, you can enter the new numbers to see how the guideline amount would change. In Florida, a substantial change in circumstances is required to modify an existing child support order.

What does the 1.5 multiplier in Line 10 mean?

When both parents qualify for substantial time-sharing (73+ overnights each), the base obligation from the guidelines table is multiplied by 1.5. This higher number is then split between the parents and cross-multiplied by overnight percentages to account for the fact that both parents directly spend money on the children during their time.

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