Fairfield's Mill Rate Dropped. So Why Did Most Home Tax Bills Go Up?

Every Fairfield listing sheet has a line for annual property taxes. On any listing that pulled that number from a bill issued before July 2026, the figure combines a 2020 assessment with a mill rate the town no longer charges. A buyer who builds a monthly budget on it is working from a tax bill that no longer exists.

Fairfield's 2025 revaluation reset every assessment in town. The 2025 Grand List was finalized on January 30, 2026, and the first bills using the new values went out in July 2026. On the town's tax rate table, the mill rate fell from 28.39 for bills dated July 1, 2025 to 19.19 for bills dated July 1, 2026. That is a cut of about a third, and it is the number in the headlines. It does not decide what a particular house costs to own. The number that does is how far that house's assessment rose.

The Break-Even Point Is About 48%

Connecticut towns tax 70% of market value. Fairfield's example: a $1,000,000 home carries a $700,000 assessment, and at 20 mills that comes to a $14,000 bill. When the rate drops and the assessment climbs, both changes hit the bill together.

Divide the old rate by the new one: 28.39 ÷ 19.19 comes to about 1.48. A home whose assessment rose about 48% in the revaluation pays roughly the same tax as before. If the assessment rose by less, the bill went down. If it rose by more, the bill went up.

The town estimates that residential values rose 63.88% on average. That average sits well above the break-even line. Here is the arithmetic for a hypothetical house that had a $560,000 assessment before the revaluation:

The middle row matters most to a buyer. A typical Fairfield home that rose with the town average now owes about $1,700 more a year than its July 2025 bill. The listing sheet may still show the July 2025 figure. And because the town has said property types appreciated at different rates since 2020, a house can land on any row of that table.

Town Spending Grew by Less Than the Average Bill

The bigger bills are not explained by a budget surge. Fairfield's final FY2026–27 budget totals $400,381,928, up 4.29% from the prior year, and the gross tax levy rose 2.30%. The total amount the town collects grew about 2%. Yet the average house in the table above pays about 11% more.

The gap comes from who carries the levy. Commercial values rose an estimated 16.61% in the revaluation, against 63.88% for residential. CT Insider reported that residential property's share of the Grand List went from 78% to 84%. Homes now make up a bigger slice of the tax base, so they pay a bigger slice of a levy that barely grew.

The town says this outright on its revaluation page. A change in your assessment does not automatically move your taxes by the same percentage, because the effect depends on how your new assessment compares with everyone else's and on the approved budget. For a buyer, that means a house's bill tracks its value relative to the rest of Fairfield, more than its value on its own.

The House Next Door May Carry a Different Number

Even the new assessments did not all hold. According to CT Insider, Tax Assessor Ross Murray said 884 homeowners filed appeals with the Board of Assessment Appeals after the revaluation. The same report said six residential properties, many on Sasco Hill Road, were each assessed at more than $15 million.

Patch Fairfield covered the Board of Finance meeting where the mill rate was set. Murray told the board the BAA heard and decided 876 appeals this cycle, up from 619 in the 2020 revaluation. He said 78% of this year's appeals led to reductions, which is in line with recent years. "What makes the number large is the sheer number of appeals," Murray said, according to Patch.

The size of the reductions changed. Murray said the average reduction this year was roughly 17%, compared with about 3% in the 2020 cycle.

That has a practical effect. Hundreds of Fairfield homes now carry an assessment set on appeal, often well below the first revaluation figure. Two similar houses on the same street can have meaningfully different bills because one owner appealed and the other did not. A cut of 17% on a $917,728 assessment saves about $3,000 a year at 19.19 mills. So "comparable" tax figures from nearby homes are a weaker guide in Fairfield this year than in a normal year.

In the same Patch report, Tax Collector David Kluczwski urged caution about collection assumptions. He cited the significant increase many homeowners will see in their bills. The town's own tax collector expects the July 2026 bills to land hard on many households.

Westport Ran the Same Math This Year

Buyers weighing Fairfield against Westport will find the same pattern next door. Westport also revalued as of October 1, 2025. Patch Westport reported that residential values rose 59.55% on average, commercial values rose 16.55%, and the FY2026–27 mill rate dropped from 18.86 to 13.2.

Run the same division and Westport's break-even comes out near 43%. At the town's average residential increase, a Westport bill rises about 12%. Westport Finance Director Gary Conrad summed it up to his board, as reported by Patch: "The expenses remain the same. It's just the rebalancing of who pays that amount of taxes."

So a buyer comparing the two towns this year should compare the new bills for the specific houses. The old listing figures and the headline rate cuts both understate what a typical home pays in either town.

Rebuilding a Fairfield Tax Figure Before an Offer

The fix takes about five minutes per house, and every input is public.

1. Pull the current assessment. Fairfield posts final values and property record cards on its Vision Government Solutions property site. Use the 2025 Grand List value, which already reflects any appeal reduction.
2. Apply 19.19 mills. Multiply the assessment by 0.01919 to get the annual bill for the July 2026 tax year.
3. Compare it with the listing sheet. If the listing figure is lower, it is almost certainly a July 2025 bill at 28.39 mills on a 2020-era assessment.
4. Calculate the assessment's percent change. If the old assessment is available, the percent change tells you which row of the table the house falls on, and whether it gained or lost relative to the 48% break-even.
5. Treat 19.19 as this year's rate only. The Board of Finance sets the mill rate each May, after the RTM approves the budget, in time for July billing.

Step 4 is where a house's price history and its tax history come together. A home whose value lagged the town since 2020 may now carry a lower bill than its listing shows. One that ran ahead of the town will carry a noticeably higher one.

FAQ

Is the 19.19 mill rate applied to the purchase price? No. It applies to the assessed value, which Fairfield sets at 70% of market value as of the revaluation date. The assessment is based on the October 1, 2025 valuation, not on the price a buyer pays.

How often does Fairfield revalue? The town conducts a property revaluation every five years. The 2025 values were set by Tyler Technologies, and the town's revaluation page links the full process, the neighborhood map and the appeal forms.

Where do appeals go? Fairfield's appeal process runs through the Board of Assessment Appeals, and the town posts the steps and forms on its assessment appeals page.

This post is general information about how Fairfield calculates property taxes, not tax, legal or financial advice. Confirm the figures for any specific property with the Assessor's office or your own tax professional.

When we prepare a Fairfield offer, we work out the July 2026 tax figure from the property card before we talk numbers, so the price you offer reflects what the house actually costs to carry. If you want that math done on a house you're watching, Bob Virgulak can walk you through it. Request a Market Consultation.