stampd

the true cost of buying a UK home

Stamp duty, deposit, legal & survey fees, Land Registry, your monthly mortgage — every number a London buyer needs, in one place. Rates effective 1 April 2025.

Purchase price (£)

Buyer type

Deposit (%)

Mortgage rate (% APR)

Mortgage term (years)

Gross annual income (£, optional)

I'm a non-UK resident (+2%)

Estimates only — legal (£1,500), survey (£600) and mortgage-arrangement (£999) fees use typical UK defaults. Not financial or tax advice.

For estate agents — stampd Pro

Turn this into a branded client report: a print-ready "Cost of Buying" one-pager carrying your agency's name and contact details, to hand to a prospective buyer. One-off £29, unlimited reports.

You'll get a Pro key by email. Generate reports via POST /v1/report/branded with header X-Stampd-Key.

Built for agents too. stampd is agent-first: every number here is one JSON call away.
Try it: curl "https://stampd.intrane.fr/api/calc?price=600000&buyer=standard"
Learn the tool: curl https://stampd.intrane.fr/guide · /llms.txt
Open source (MIT) & CLI on GitHub.