Homestead Exemption Calculator: See Your Tax Savings

This homestead exemption calculator estimates how much a homestead exemption could lower your property tax. A homestead exemption takes a set dollar amount off the taxable value of the home you own and live in. Enter that amount and your tax rate to see the savings per year, per month and over the years you plan to stay.

How to use this calculator

1. Exemption amount. Find the dollar amount for your state or county. Your county assessor’s or appraisal district’s website lists it, and your tax bill often shows the exemption already applied. Some exemptions are a percent of value; if so, work out the dollar amount first.
2. Tax rate. Enter the rate the exemption actually reduces. If it applies to all taxes, use your combined rate. If it applies to one tax only, such as school taxes, use that rate alone. Rates in mills divide by 10 to become a percent (15 mills = 1.5%).
3. Years. Enter how long you expect the home to stay your main residence (1 to 40).
4. Read the result. You will see yearly, monthly and total savings.

How this calculator works

Yearly savings equal the exemption amount times the tax rate. Monthly savings divide that by 12. Total savings multiply the yearly figure by the number of years, rounded to a whole number and at least 1.

Yearly savings  = Exemption × Tax rate ÷ 100
Monthly savings = Yearly savings ÷ 12
Total savings   = Yearly savings × Years

What it assumes:

• The default inputs ($50,000 exemption, 1.5% rate, 5 years) are hypothetical examples.
• Your assessed value is at least as large as the exemption, so the full amount is used.
• The exemption amount and tax rate stay the same each year.
• Assessment caps, senior or disability exemptions and tax freezes are not included.

Worked examples

Example 1: the default inputs

Hypothetical example: a $50,000 exemption, a 1.5% rate that applies to the whole exemption, and 5 years in the home.

1. Yearly savings: $50,000 × 1.5 ÷ 100 = $750
2. Monthly savings: $750 ÷ 12 = $62.50
3. Total savings: $750 × 5 = $3,750

Example 2: an exemption that reduces school taxes only

Hypothetical example: a $140,000 exemption that applies to school district taxes only, a school rate of 1.0%, and 3 years in the home.

1. Yearly savings: $140,000 × 1.0 ÷ 100 = $1,400
2. Monthly savings: $1,400 ÷ 12 = $116.67
3. Total savings: $1,400 × 3 = $4,200

If you had entered a combined rate of 2% here instead of the 1% school rate, the estimate would double to $2,800 a year, which would be wrong.

What your result means

The yearly figure is the drop in your tax bill if the exemption is approved and rates hold steady. If you pay through escrow, your monthly mortgage payment should fall by roughly the monthly figure after your servicer’s next escrow review. The total shows why filing on time matters.

Rules that change the answer

• Florida. The exemption is up to $50,000. The first $25,000 applies to all taxes; the second applies only to non-school taxes on value over $50,000. The filing deadline is March 1 (Florida Department of Revenue, PT-113). Run the two parts separately with the right rates.
• Texas. School districts must exempt $140,000 of a homestead’s value, and other local units may offer up to 20% of value (Texas Comptroller). Form 50-114 says to file by April 30 (Texas Comptroller).
• California. The homeowners’ exemption reduces taxable value by $7,000. File by February 15 for the full exemption (California State Board of Equalization). At a 1% rate that is about $70 a year.
• Losing the exemption. Florida explains that renting the home or no longer living in it as your permanent home can end eligibility and remove the Save Our Homes benefit (Florida Department of Revenue, PT-112).

Common mistakes

• Using your combined tax rate when the exemption reduces only school taxes, or only some taxes.
• Entering the exemption as a percent instead of a dollar amount.
• Assuming the exemption is automatic after you buy. Most require an application.
• Missing the filing deadline, which can delay the savings a full year.
• Forgetting to apply again after moving to a new home.

Limits and when to get help

This tool uses one exemption and one rate. It cannot model exemptions that differ by taxing unit, phase out by income or value, or combine with caps and freezes. It does not check whether you qualify. Your county assessor or appraisal district can confirm the amount, the form and the deadline.

To estimate your whole bill with the exemption included, use the property tax calculator. If your state also caps assessment growth, try the assessment cap calculator. For the details by state, read our homestead exemption guide. For tax-return questions, talk to a tax professional.