Save Our Homes portability and net proceeds calculator
Estimate how much of your Florida property tax savings could follow you to a smaller home and what you might walk away with after selling. Everything runs in your browser; nothing you type is saved or sent.
How the estimate works
Your Save Our Homes benefit is the difference between your home's just (market) value and its assessed value. It builds up because Florida caps annual increases in a homestead's assessed value at 3 percent or the change in the Consumer Price Index, whichever is lower.
Moving to a home worth the same or more: the full benefit can transfer, up to $500,000. Moving to a home worth less: the benefit is prorated by the ratio of the new home's just value to the old home's. The portable amount is subtracted from the new home's just value to set its first assessed value.
Documentary stamp tax is $0.70 per $100 of the sale price (or fraction of $100), customarily paid by the seller in Florida. The calculator includes it automatically.
You must establish the new homestead within three years of January 1 of the year you gave up the old one and file Forms DR-501 and DR-501T with the Property Appraiser by March 1. The full explanation, with worked examples, is in our homestead portability guide, and seller costs are covered in estimating your net proceeds and Costs and Money.
An estimate, not a tax bill. The Property Appraiser determines your actual portability, and the new home's just value is set by the Property Appraiser, not by the purchase price. Tax savings also depend on exemptions and millage rates. Amendment 3 on the November 3, 2026 ballot could change homestead exemptions from 2027. Confirm with the Hillsborough County Property Appraiser and a tax professional.
Want a local professional to run real numbers on your home? Get matched with a Tampa downsizing specialist.