Almost everyone shopping for a home in Connecticut or Massachusetts has a number in their head. It's the price. It is almost never what the move actually costs.

The gap between those two numbers is closing costs, and it is bigger than most people expect — and meaningfully different depending on which side of the state line you're standing on. A seller in Hartford and a seller in Springfield can close identical $500,000 sales on the same day and walk away with a difference of nearly three thousand dollars, purely because of how the two states tax the transfer.

Here's what actually comes out, on both sides of the transaction, in both states.

If you're selling: the transfer tax is the line that surprises people

Both states tax the act of selling a home, and in both states the seller customarily pays it. That's where the similarity ends.

Connecticut charges in tiers

Connecticut's conveyance tax has two parts. The state portion is tiered by sale price:

On top of that, your town takes its own cut. Nearly every Connecticut municipality charges an additional 0.25%. Stamford charges 0.35%. A handful of towns are authorized to charge up to 0.5%, so confirm the rate for your specific town rather than assuming the standard.

One thing worth knowing if you're selling at the top of the market: sellers who pay at the 2.25% tier may be able to claim a credit against their Connecticut income tax, and carry it forward if they can't use it all in the year of the sale. Ask your attorney — this one gets missed.

Massachusetts charges a flat rate

Massachusetts calls it the deed excise tax, though you'll hear it called tax stamps. It's $4.56 per $1,000 of sale price statewide, which works out to 0.456%. No tiers. No mansion-tax threshold. The same rate whether you're selling a condo in Worcester or an estate in Weston.

Barnstable County is the exception, at roughly $6.48 per $1,000. If you're selling on the Cape, budget accordingly.

What that difference looks like

Same $500,000 sale, same day, two different states:

Connecticut sellers pay more than double what their Massachusetts neighbors pay on the same sale price. It is set by statute and it is not negotiable.

You can't argue the rate down. What you can do is know it before you price, so the number in your head is your net rather than your gross.

The rest of what a seller pays

The transfer tax is the surprise. It usually isn't the biggest number. In rough order of size:

• Agent commission.Negotiable, and the terms changed meaningfully in 2024 — how buyer-side compensation works is now an explicit conversation rather than an assumption.

• Transfer tax.The numbers above.

• Attorney fees.Both Connecticut and Massachusetts are attorney states. A lawyer conducts or supervises the closing. This is not optional and not a place to bargain-hunt.

• Prorated property taxes.You cover your share of the year you owned the home.

• Payoff and recording costs.Releasing your existing mortgage and recording the new deed.

• Massachusetts extras.A municipal lien certificate and a smoke and carbon monoxide detector certificate, both seller-side, both small, both capable of delaying a closing if nobody remembers them.

If you're buying: budget 2% to 5% on top of your down payment

Buyer closing costs in Connecticut typically land between 2% and 5% of the purchase price, and that isseparate fromthe down payment. On a $500,000 purchase that's roughly $10,000 to $25,000 you need available at the table, on top of whatever you're putting down.

What's in it:

• Lender fees. Origination, underwriting, credit report, and points if you're buying the rate down.

• Prepaids and escrow. The first year of homeowner's insurance, plus several months of taxes and insurance funded into escrow up front. This is often the single largest buyer line and the one nobody warns you about.

• Appraisal. Ordered by the lender, paid by you.

• Inspections. General inspection, plus radon, well, and septic where they apply — which in a lot of New England is more often than you'd think.

• Title insurance and title exam. The lender's policy is required. The owner's policy is optional and usually worth it.

• Your attorney. Again, both states require one.

• Recording fees. Small, but real.

The mistake that costs the most

It isn't picking the wrong lender or overpaying for an inspection. It's finding out the real number three days before closing.

Sellers who don't run a net sheet before they list end up pricing against a gross figure and getting a nasty surprise at the end. Buyers who budget only for the down payment show up short and start scrambling for a gift letter or a lender credit in the final week — which is the worst possible time to be renegotiating anything.

Both problems are entirely avoidable, and both are avoided the same way: get the numbers before you commit to anything.

What to ask for, and when

If you're selling

Ask your agent for a net sheet before you set a list price. It should show your estimated proceeds at several price points, with the conveyance tax, commission, attorney fees, and payoff all subtracted. If you can't see your net, you're not really pricing — you're guessing.

If you're buying

Your lender must provide a Loan Estimate within three business days of your application. Read the "cash to close" figure, not just the monthly payment. If it's more than you planned for, you want to know that in week one, not week eight.

Then, before closing, compare the Closing Disclosure against that original Loan Estimate line by line. Some costs are legally allowed to change and some are not. Your attorney will know which is which — but only if someone actually asks.

Rates and municipal surcharges change, and every transaction has its own wrinkles. Confirm the numbers for your specific town and situation with your closing attorney. We work on both sides of the Connecticut and Massachusetts line and are happy to run a net sheet or a buyer's cost estimate for you — no obligation, no pressure.