About Landlord Tax Lab

Landlord Tax Lab exists because landlord tax content on the internet is mostly marketing. Accountancy firms publish calculators to harvest leads; portals publish guides written once and left to rot; and the November 2025 Budget made half of it wrong overnight. We wanted the thing that didn’t exist: calculators and guides where every number names its source and its date.

How this site works

• One data file, verified against primary sources. Every rate on this site — income tax bands, CGT, SDLT/LBTT/LTT tables, MTD thresholds — lives in a single dataset checked against gov.uk, HMRC manuals, the Finance Act 2026 text, gov.scot, revenue.scot and gov.wales. The “last verified” date in the footer is real.
• Primary sources or silence. Where we could not verify something from an official source, the page says so plainly instead of guessing — you will find “could not verify” notes on this site, which is exactly why you can trust the rest.
• Corrections are published. When we get something wrong, the fix goes on the page with a note, not down a memory hole. See the editorial & corrections policy.
• Independent. This site may earn from clearly-disclosed advertising and referral links to software we genuinely rate. Nobody pays to change a number, and no lead forms harvest your details.

What this site is not

Not tax advice, not an accountancy firm, and not a substitute for one when your position is complicated. Calculators estimate. The value here is walking into HMRC guidance — or your adviser’s office — already holding the right starting numbers.

Who is behind it

Hira Bilal, Publisher & editor.

Hira Bilal is the UK-based publisher and editor of Landlord Tax Lab. She holds a postgraduate degree and runs the site the way a research project is run: every rate, threshold and deadline on these pages is traced to its primary source — HMRC, gov.uk, the Valuation Office Agency, HM Land Registry or the ONS — and carries the date it was last checked. She signs off each calculator and guide before it goes live, keeps the single rates table in step with each Budget and Finance Act, and is the named contact for corrections. She is not a tax adviser and the site does not give advice; it gives you the sourced numbers and the working so you can check them yourself.