CalcStack Pro

One subscription unlocks every premium tool on CalcStack — 134+ UK calculators, AI document generators and downloadable PDF reports.

CalcStack Pro

£99/year

Just £8.25 a month, billed annually

  • ✓Every premium calculator and generator — no per-tool fees
  • ✓Unlimited AI documents (notices, letters, handbooks, brand packs)
  • ✓Unlimited branded PDF reports for your own records or clients
  • ✓All UK rates kept current for the 2025/26 tax year
  • ✓Sign in from any device — no passwords, just a one-click email link
  • ✓New tools included as soon as they launch
  • ✓Cancel any time from your account
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Secure payment via Stripe. Cancel any time.

Prefer to pay once? Every premium tool is also available as a single purchase on its own page. Browse the tools

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Pricing questions

What do I get with CalcStack Pro?

Pro unlocks every premium tool on CalcStack — that is 134+ UK calculators, AI document generators and downloadable PDF reports — for one monthly or annual fee, instead of paying per tool.

How do I sign in after subscribing?

There are no passwords. After you pay, we email you a one-click sign-in link. That signs you in for 30 days on that device, and you can request a fresh link any time from the account page.

Can I cancel at any time?

Yes. You can cancel whenever you like and keep access until the end of the period you have paid for. There is no minimum term and no cancellation fee.

Is it cheaper than buying tools individually?

If you use more than two or three premium tools, Pro works out cheaper. Individual reports start at £2.99 and the AI generators run from £4.99 to £49, so the annual plan at £8.25 a month pays for itself quickly.

Are the UK tax rates kept up to date?

Yes. Every calculator uses current UK rates and thresholds for the 2025/26 tax year, and we update them when HMRC changes them.

Do you offer refunds?

If a tool does not work as described, contact us and we will put it right or refund you. Get in touch through the contact page and a real person will reply.