Use this Florida home affordability calculator to find what you can borrow from your income, your debts and your down payment.
Written by Renzo Johnson, Licensed Mortgage Loan Originator · Last updated: August 2026
- Enter: annual income, monthly debts, down payment, target DTI ratio
- See: maximum home price, estimated monthly payment, loan amount
- Factors in: Florida property taxes, homeowners insurance, flood insurance
- Adjustable DTI targets, from conservative at 28/36 to aggressive at 31/50
- Interactive calculator coming soon.
What a Florida home affordability calculator is really solving
Affordability is not a price. It is a payment, worked backwards. A lender takes your gross monthly income, applies a maximum debt-to-income ratio, subtracts what you already owe, and whatever remains has to cover the whole housing payment.
That payment is PITIA: principal, interest, taxes, insurance and association dues. Every one of those five letters competes for the same allowance. Raise one and the loan amount falls.
In Florida, insurance decides the answer
In most states the insurance line is small enough to ignore. Here it is not, and this is the single reason national calculators overstate Florida budgets.
Take a buyer earning $8,000 a month. At a 43% back-end ratio that allows roughly $3,440 of total debt. A homeowners and windstorm premium of $600 a month rather than $200 consumes $400 of that allowance outright. At current rates $400 of payment supports somewhere around $60,000 of additional loan.
The same buyer therefore qualifies for meaningfully less house on the coast than inland, with identical income and identical credit. Quote the insurance before you fall in love with a price band.
The ratios to test
| Program | Back-end ceiling | Note |
|---|---|---|
| Conventional | Generally 50% | Requires strong compensating factors at the top of the range |
| FHA | Up to 57% | Also with compensating factors, such as reserves |
| VA | No formal cap | Uses a residual income test instead |
Run the number twice, once at a conservative 36% and once at your program ceiling. The gap between those two answers is the risk you are choosing to take.
Next steps
Read how much house can I afford for the full method, and DTI ratio explained for how lenders count your debts. Then get pre-qualified for a specific amount, because a real credit pull and a real insurance quote beat any estimate.