Mortgage tax

A mortgage tax is a tax imposed by some states on the recording of a mortgage. It's distinct from the transfer tax (which is on the property transfer); the mortgage tax is on the financing instrument itself. The tax applies only to financed transactions, a cash purchase has no mortgage to record and therefore no mortgage tax.

How it works: the tax is calculated as a percentage of the loan amount and paid at closing, typically by the buyer. Rates vary by state. Florida charges 0.35% on the mortgage (in addition to the 0.70% deed documentary stamp paid by the seller). New York charges roughly 1.8% on average across its layered structure, the highest in the country. Minnesota charges 0.23%. Most other states have no separate mortgage tax, the transfer tax covers the recording.

Why it matters: in states with mortgage tax, the cost adds materially to the buyer's closing budget. A $400,000 New York mortgage carries roughly $7,200 in mortgage recording tax, on top of all the standard closing costs. Buyers in mortgage-tax states should confirm the rate as part of their pre-application research, because the line doesn't appear in non-mortgage-tax states' typical closing-cost estimates.

Common gotcha: refinances in some states (notably New York) can sometimes use a "consolidation, extension, and modification agreement" (CEMA) to avoid paying mortgage tax again on the unpaid balance of the existing loan. The savings can be material but the transaction structure is more complex; an experienced loan officer or attorney guides the decision.