How Much Less Will You Pay If Amendment 3 Passes?

In one Port St. Lucie tax district, a qualifying homeowner with enough assessed value could save roughly $106 a month in 2027 and $214 a month in 2028, based on 2026 tax rates and exemption levels. Your actual mortgage payment may change later and by a different amount because only the property-tax portion is affected.

As of October 26, 2026, Florida Amendment 3 has not passed. Florida voters will decide it on November 3, 2026, and it needs at least 60% approval to become part of the state constitution.

The video above walks through four checks that can help you estimate what the amendment could mean for your own tax bill and housing payment.

Where Florida Amendment 3 Stands

If approved, Amendment 3 would take effect January 1, 2027.

For qualifying homestead properties, it would exempt the first $150,000 of assessed value from non-school property taxes in 2027. That amount would rise to $250,000 in 2028, with inflation adjustments beginning after that.

The school-tax exemption would remain limited to the first $25,000 of assessed value. Amendment 3 also includes changes affecting non-homestead assessment caps and how counties and municipalities may use property-tax revenue, but this breakdown focuses on the homestead exemption and monthly housing costs.

The full ballot summary is available through the Florida Department of State.

Here’s the part nobody tells you.

This amendment would not erase your entire property-tax bill.

It applies to non-school ad valorem taxes. School taxes would continue under the existing exemption structure. Non-ad valorem assessments for services such as waste collection, stormwater systems or certain special districts may also remain on the bill.

Check 1: Would You Qualify for the Larger Exemption?

The big dividing line is December 31, 2026.

If you are a permanent Florida resident by that date and otherwise qualify for homestead, you could receive the increased exemption beginning in 2027.

If you are not a permanent Florida resident on December 31, 2026, the proposal says you would receive the existing exemption after qualifying for homestead. Access to the larger exemption would begin with the fifth year of exemption, subject to the amendment’s terms.

That makes the residency date especially important if you are:

• Buying a Florida home near the end of 2026
• Moving to Florida from another state
• Changing your permanent residence
• Planning to apply for homestead for the first time

A quick self-check:

• Is the property your permanent residence?
• Do you own and occupy the home?
• Do you already have a homestead exemption?
• If not, when will you qualify and apply?
• Were you a permanent Florida resident by December 31, 2026?

Your county property appraiser determines whether you qualify. Your mortgage servicer and tax collector do not make that decision.

Check 2: How Much Could You Actually Save?

You need three numbers:

1. Your home’s assessed value
2. Your current exemptions
3. The non-school millage rate for your exact tax district

One mill equals $1 of tax for every $1,000 of taxable value.

Notice that this calculation uses assessed value, not purchase price. A $500,000 purchase price does not automatically create a $500,000 assessed value.

When a home changes ownership, its assessment may reset. Homestead exemptions and Save Our Homes portability can also affect the final number. The St. Lucie County Property Appraiser specifically warns that a seller’s previous tax bill may not be a reliable estimate of a buyer’s future taxes.

Use the property record and current tax notice rather than relying on the real estate listing.

Best tip: Calculate from your parcel’s assessed value and exact tax district, not the purchase price or the seller’s old tax bill.

For 2026, Florida’s standard homestead structure includes a $25,000 exemption that applies to school and non-school taxes. An additional inflation-adjusted exemption of up to $26,411 applies to non-school taxes for qualifying assessed value, according to the Florida Department of Revenue.

A Port St. Lucie Example

Consider a Port St. Lucie tax district with a total 2026 rate of 19.1893 mills. School levies account for 6.245 mills, leaving approximately 12.9443 mills in non-school property taxes, according to the county’s 2026 final tax-rate sheet.

For a qualifying homeowner with enough assessed value:

• The 2027 exemption could remove approximately another $98,589 from non-school taxable value compared with the 2026 standard exemption.
• At 12.9443 mills, that equals about $1,276 per year.
• That is approximately $106 per month.

For 2028:

• The exemption could remove approximately another $198,589 from non-school taxable value.
• At the same rate, that equals about $2,571 per year.
• That is approximately $214 per month.

Those numbers are examples, not promises.

They assume:

• The owner qualifies for the larger exemption
• The property has enough assessed value to use it
• The home is in that specific tax district
• The millage rate does not change

Local governments set millage rates each year. Different cities and special districts can also produce different bills for homes with similar market values.

You need your parcel, district and eligibility to estimate your own savings.

Check 3: Would Your Mortgage Payment Drop?

It could, but only if your property taxes are paid through escrow.

An escrow account allows your mortgage servicer to collect part of your expected property taxes and homeowners insurance with each monthly payment. Your servicer then pays those bills when they are due.

Amendment 3 would not change:

• Your loan balance
• Your mortgage interest rate
• Your loan term
• Your principal and interest payment
• Your homeowners insurance premium

It would affect the property-tax portion of your total housing payment.

Suppose your annual tax bill falls by about $2,400. It may be tempting to expect your payment to drop by $200 the following month.

That is not necessarily how it works.

Your servicer typically adjusts the escrow portion after conducting an escrow analysis. That analysis estimates future tax and insurance bills and determines whether the account has a shortage, surplus or deficiency. The Consumer Financial Protection Bureau explains that servicers must conduct an analysis before issuing the annual escrow statement.

A higher insurance premium could offset some or all of the tax savings. An existing escrow shortage could also keep the payment from falling by the full monthly equivalent.

Track three different numbers:

1. Your yearly property-tax savings
2. The monthly equivalent of those savings
3. The payment shown after your servicer completes its escrow analysis

If you do not have an escrow account, your mortgage payment would not change. You would pay the lower tax bill directly when it comes due.

Check 4: Make Sure the Exemption Is Claimed Correctly

An exemption only helps if you qualify and file correctly.

The standard Florida homestead filing deadline is March 1 of the tax year for which you are applying. St. Lucie County accepts pre-filed applications during the year, and residency documents should generally support qualification before January 1, according to the St. Lucie County Property Appraiser.

If you miss the March 1 deadline, contact your property appraiser immediately. Florida law provides a late-filing process in some circumstances, but deadlines and documentation requirements still apply.

Do not claim homestead unless the home truly qualifies as your permanent residence. An improper exemption may lead to back taxes, penalties, interest and a lien against the property.

The Local-Control Question

There are two sides to weigh.

Qualifying homeowners could receive meaningful property-tax relief. At the same time, the amendment could reduce revenue available to counties, cities and other local taxing authorities.

That local-control concern is not abstract for my family. My wife, Cheryl, has worked with school-board and local-government finance, and my father-in-law worked for a property appraiser’s office for 30 years.

I take the effect on local revenue and services seriously. At the time of writing, I am leaning yes because of the potential relief for qualifying homeowners, but I am not telling anyone how to vote.

The goal is to understand both the savings and the tradeoffs before making that decision.

Run Your Own Numbers

Start with this formula:

Additional exempt value × non-school millage rate ÷ 1,000 = estimated annual tax savings

Then divide the result by 12 for a monthly equivalent.

Gather these documents before calculating:

• Your latest property-tax bill or proposed tax notice
• Your property record showing market, assessed and taxable value
• Your homestead status
• The millage rates for your tax district
• Your latest mortgage statement
• Your most recent escrow analysis

Contact the property appraiser about exemptions and assessed value. Contact the tax collector about your bill. Contact your mortgage servicer or loan officer about when an escrow change may reach your monthly payment.

Bottom line: calculate the tax change first, then look separately at escrow, insurance and any shortage or surplus. Those are different numbers, and understanding the difference will give you a more realistic estimate before the November 3 vote.