Florida financial affidavit: converting weekly and biweekly pay to monthly
Published October 27, 2026
Florida's financial affidavit, short form 12.902(b) and long form 12.902(c), asks for every amount as a monthly figure. Most people are not paid monthly. The instructions for both forms include "hints" for converting, and they apply to bills as well as pay. This guide sets them out with worked examples. It is general information, not legal advice.
What the instructions say
The affidavit must be completed using monthly income and expense amounts. If you are paid or your bills are due on a schedule which is not monthly, you must convert those amounts. Hints are provided below for making these conversions.
(That is the short form's wording; the long form says "convert those to monthly amounts".) The forms repeat the point at the top of the income section: "All amounts must be MONTHLY."
The five conversions, with examples
| Paid | The instructions' method | Example |
|---|---|---|
| Hourly | Hourly amount × hours worked per week = weekly amount; weekly × 52 = yearly; yearly ÷ 12 = monthly | $18.50 × 32 hours = $592.00 a week; × 52 = $30,784.00; ÷ 12 = $2,565.33 |
| Daily | Daily amount × days worked per week = weekly amount; weekly × 52 = yearly; yearly ÷ 12 = monthly | $140 × 4 days = $560 a week; × 52 = $29,120; ÷ 12 = $2,426.67 |
| Weekly | Weekly amount × 52 = yearly; yearly ÷ 12 = monthly | $650 × 52 = $33,800; ÷ 12 = $2,816.67 |
| Every two weeks (bi-weekly) | Bi-weekly amount × 26 = yearly; yearly ÷ 12 = monthly | $1,400 × 26 = $36,400; ÷ 12 = $3,033.33 |
| Twice a month (semi-monthly) | Semi-monthly amount × 2 = monthly | $1,500 × 2 = $3,000.00 |
The amounts are gross: the income section is headed "PRESENT MONTHLY GROSS INCOME", and line 1 is gross salary or wages. Taxes and other deductions go on lines 18 to 25, and line 27 is the net figure.
Why not multiply by four?
A month is not four weeks. A year has 52 weeks, which is 4.33 weeks a month on average. Multiplying a weekly amount by 4 drops the extra four weeks of the year:
- Weekly pay of $650 × 4 = $2,600.00, against $2,816.67 by the instructions' method: $216.67 a month apart.
- Bi-weekly pay of $1,400 × 2 = $2,800.00, against $3,033.33: $233.33 a month apart. A year has 26 paydays, not 24, so in most years two months have three paydays.
Semi-monthly is different: twice a month is exactly 24 paydays a year, so × 2 is the whole conversion.
Expenses convert the same way
The instructions end the hints with one line: "Expenses may be converted in the same manner." Examples:
- Groceries of about $145 a week: $145 × 52 = $7,540 a year; ÷ 12 = $628.33 a month.
- Childcare of $320 every two weeks: $320 × 26 = $8,320 a year; ÷ 12 = $693.33 a month.
- Car insurance of $540 every six months: $1,080 a year; ÷ 12 = $90.00 a month.
Spending that does not follow a schedule, such as groceries that vary week to week, is usually worked out the other way round: add up what your statements show over a period and divide by the number of months. See monthly averages from bank statements; the method is the same in Florida.
Pay that changes from week to week
The hints cover regular schedules: a set rate per hour, day, week or pay period. They do not say what to do when the amount changes, for example with variable hours, tips, commissions or gig work. Line 2 of both forms is "bonuses, commissions, allowances, overtime, tips, and similar payments", and line 3 is business income. How to arrive at a monthly figure for income that varies is a judgment the forms leave to you. See irregular income on a financial affidavit for what each form's wording says, and ask a lawyer or your circuit's self-help program if you are unsure.
Financial Affidavit Numbers turns a year of statements into monthly averages for each line of Form 12.902(b) or (c), with the transactions behind each figure, so irregular bills are spread over the months you choose. It does not fill in the affidavit; you copy the monthly figures onto the form.
Common questions
How do you convert biweekly pay to monthly for a Florida financial affidavit?
The instructions say: bi-weekly amount × 26 = yearly amount, then yearly amount ÷ 12 = monthly amount. For $1,400 every two weeks that is $36,400 a year, or $3,033.33 a month.
How do you convert weekly pay to monthly?
Weekly amount × 52 = yearly amount, then ÷ 12. For $650 a week that is $33,800 a year, or $2,816.67 a month.
How do you convert semi-monthly pay to monthly?
Semi-monthly amount × 2 = monthly amount, according to the instructions. Twice a month is exactly 24 paydays a year.
Can expenses be converted the same way?
Yes. The instructions say: 'Expenses may be converted in the same manner.' A $145 weekly grocery bill is $145 × 52 ÷ 12 = $628.33 a month.
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