A Stamford sale one dollar over $1 million costs about $1,500 more in tax

Connecticut’s state conveyance tax works the way most people expect a tax to work. It is marginal. The first $800,000 of a residential sale is taxed at 0.75%, the portion between $800,000 and $2,500,000 at 1.25%, and anything above that at 2.25%. Cross a threshold and only the dollars above it are taxed at the higher rate.

Stamford’s municipal surcharge does not work that way.

What the rule actually says

Every Connecticut town charges a base municipal conveyance tax of 0.25%. Nineteen municipalities are eligible to add up to another 0.25% on top. Stamford is one of them, and it added a partial amount:

• A property sold for up to $1,000,000: an extra 0.10%, so 0.35% total.
• A property sold for more than $1,000,000: the full extra 0.25%, so 0.50% total.

The wording matters. The Office of Legislative Research describes it as “0.10% on properties sold for up to $1 million and 0.25% on all other properties.” The rate attaches to the property based on its sale price, and then applies to every dollar of that price. It does not taper.

What that does at the line

A Stamford home that sells for exactly $1,000,000 owes 0.35% in municipal tax: $3,500.

A Stamford home that sells for $1,000,001 owes 0.50% on the entire price: $5,000.

One additional dollar of sale price produces about $1,500 in additional tax. There is no phase-in and no partial step.

Note where the boundary sits. A sale at exactly $1,000,000 is taxed at the lower rate. The higher rate begins above that figure, not at it.

Why this catches people

Two reasons.

The first is that the state brackets sitting right next to it are marginal, so the intuition carried over from those brackets is wrong here. Someone who understands that crossing $800,000 on the state side costs almost nothing extra will reasonably assume the same about crossing $1,000,000 on the town side.

The second is that a $1,000,000 list price is a round number, which means Stamford sales cluster near it. A negotiation that nudges a price from $995,000 to $1,005,000 moves $10,000 of value and about $1,500 of tax. That is real money to argue about, and it is invisible unless somebody runs it.

If you are selling in Stamford near the line

Run the number before you counter. The tax is owed by the seller in most Connecticut residential sales, so a small price increase that crosses the line can be worth less than it appears.

Run both figures side by side on the conveyance tax calculator.

Source: OLR Report 2020-R-0020, Real Estate Conveyance Tax, Table 2.