A homestead exemption removes part of your home's value from the property-tax base before the millage rate is applied. This calculator shows the taxable value after the exemption, your reduced bill, and the annual dollars saved — plus how an assessment cap changes the picture over time.
The exemption is applied to assessed value, then the millage is charged on what remains. Two homes with identical exemptions can see very different savings if their local millage rates differ — a $50,000 exemption saves twice as much at 22 mills as at 11 mills.
| Scenario | Bill Without Exemption | Taxable After Exemption | Bill With Exemption | Annual Savings |
|---|---|---|---|---|
| $450,000 home, $50,000 exemption, 18.5 mills | $8,325 | $400,000 | $7,400 | $925 |
| $325,000 home, $25,000 exemption, 22.0 mills | $7,150 | $300,000 | $6,600 | $550 |
| $650,000 home, $100,000 exemption, 14.0 mills | $9,100 | $550,000 | $7,700 | $1,400 |
| $250,000 home, $40,000 exemption, 20.5 mills | $5,125 | $210,000 | $4,305 | $820 |
| $900,000 home, $75,000 exemption, 11.5 mills | $10,350 | $825,000 | $9,488 | $862 |
A common misconception is that the exemption is a dollar-for-dollar tax reduction. It is not — it reduces taxable value, so the actual saving is the exemption amount multiplied by the millage rate. That is why the same $50,000 exemption can save $925 in one county and $1,100 in another.
There is no federal homestead exemption for property tax. Each state sets its own amount, eligibility rules, and filing deadlines — and several states with no income tax lean heavily on property tax instead, making the exemption especially valuable there.
| State | Typical Exemption | Key Feature |
|---|---|---|
| Florida | $50,000 | $25,000 applies to all levies; the second $25,000 applies only to non-school levies. Save Our Homes caps annual assessment increases at 3% or CPI. |
| Texas | $100,000 (school taxes) | Raised substantially in recent years; local optional exemptions add more. No state income tax, so this matters a great deal. |
| California | $7,000 | Tiny exemption, but Prop 13 caps assessed value growth at 2% per year — the cap, not the exemption, is where the value is. |
| Georgia | Varies by county | Local homestead exemptions can be substantial and often include school-tax relief for seniors. |
| Illinois | Varies by county | Cook County uses a homeowner exemption plus assessment-level adjustments. |
| New York | Varies (STAR program) | STAR is a school-tax relief program rather than a classic homestead exemption. |
In fast-appreciating markets, the annual assessment cap is frequently worth more than the exemption itself. Florida's 3% cap and California's Prop 13 2% cap mean a long-tenured owner can pay tax on an assessed value far below market. This calculator lets you enter last year's assessed value and pick a cap to see the capped bill — but note that caps and exemptions interact in ways that vary by statute, and some states apply the cap before the exemption while others apply it after.
Most states require you to file a homestead exemption application, often within a window after closing or by a fixed annual deadline (Florida's is March 1). Missing it typically costs a full year of savings with no retroactive remedy. If you bought a home this year, check your county property appraiser's site now — this is one of the few tax benefits that requires an affirmative filing.
The most common error people make is assuming a $50,000 homestead exemption takes $50,000 off their tax bill. It does not — it takes $50,000 off the taxable value. The actual dollar saving is that amount multiplied by the millage rate divided by 1,000.
At 18.5 mills, a $50,000 exemption saves about $925 per year. At 11.5 mills it saves about $575. The exemption is the same; the value of it is set entirely by your local tax rate. This is why comparing exemption amounts across states without also comparing millage rates tells you almost nothing.
It also explains why exemptions in high-millage, no-income-tax states matter so much more. Texas levies relatively high property taxes precisely because it has no state income tax, so each dollar of exemption there is worth more than the same dollar of exemption in a low-millage state. If you are relocating, model the full property tax burden rather than comparing headline exemption figures.
⚠️ Disclaimer: Property tax rules, exemption amounts, millage rates, and assessment caps are set locally and change frequently through legislation and annual rate-setting. Values used here are illustrative. Confirm your exemption eligibility, the exact amount, and the filing deadline with your county property appraiser or tax assessor. This is not tax or legal advice.