New Hampshire’s Real Estate Transfer Tax (RETT) is $0.75 per $100 of the sale price — and unusually, it is charged to both the buyer and the seller. Each side pays $0.75 per $100, so the combined tax is $1.50 per $100 (1.5%). A $20 minimum per party applies. This tool computes all of it.
How it works
The price is rounded up to the next whole $100, then taxed per increment for each party, with the statutory minimum enforced:
units = ceil(price / 100)
per party = max($20, units × $0.75)
combined = per party × 2 (buyer + seller)
So the headline 1.5% combined rate is really two separate $0.75-per-$100 charges that the buyer and seller each owe at closing.
Example and notes
On a $400,000 sale, there are 4,000 increments of $100. Each party owes
4,000 × $0.75 = $3,000, and the combined transfer tax is $3,000 × 2 = $6,000
(1.5% of $400,000). For a very small transfer where $0.75 per $100 would compute
to under $20, the $20 minimum per party kicks in instead. Some transfers — between
spouses, gifts, or to a wholly-owned entity — may be exempt; confirm with the
New Hampshire Department of Revenue Administration. This is an estimate of the
transfer tax only and excludes recording fees and closing costs.