Best value — save £17
The MTD Toolkit — all four spreadsheets
Everything for the money side of self-employment, in one download.
Secure checkout by Paddle · instant download · VAT handled for you · 14-day money-back guarantee
Getting ready for Making Tax Digital? From April 2026, sole traders and landlords over £50,000 of qualifying income must keep digital records and send HMRC a quarterly update. These four spreadsheets keep your figures in one digital place all year, so each quarter is a short job rather than a scramble.
- Self Assessment Tax Estimator 2026/27 — know your bill before January
- Rental Property ROI & Yield Calculator — with Section 24 and a rate stress test
- Freelance Day-Rate Calculator — works backwards from the take-home you want
- Invoice Tracker & Chase List — automatic Paid / Outstanding / Overdue
- All four in Excel, Google Sheets and Numbers · free updates when tax rates change
Made by Fableworks HQ. Designed and built by us using spreadsheet tools with AI assistance, and every calculation is human-checked and unit-tested.
Secure checkout by Paddle · instant download · VAT handled for you · 14-day money-back guarantee
A look inside — four spreadsheets, one download
| Included tool | On its own |
|---|---|
| Self Assessment Tax Estimator 2026/27 | £9 |
| Rental ROI & Yield (with Section 24) | £9 |
| Freelance Day-Rate & Profit | £9 |
| Invoice Tracker & Chase List | £9 |
| All four together | £19 · save £17 |
Every formula visible and editable, in Excel, Google Sheets and Numbers — and free updates when the tax rates change.
Why buy this when AI is free?
You could ask a chatbot each of these questions and get four plausible answers in four chat windows, none of which exist tomorrow. What you cannot ask it for is the thing Making Tax Digital actually requires: a record you keep. These four files are that record and the planning around it — the invoice ledger that logs the year, the tax estimate that tells you what to set aside, the rate you need to charge, and whether a property deal pays.
The deadlines are already running. Sole traders and landlords with qualifying income over £50,000 have been in Making Tax Digital since 6 April 2026; over £30,000 joins in April 2027 and over £20,000 in April 2028. Each quarter is a short job if the figures have been in one place all along, and a scramble if they have not.
Why a spreadsheet, specifically
HMRC does not make you buy accounting software. GOV.UK is explicit that records kept in a spreadsheet are fine, and that a second, small piece of software does the sending: “if you use spreadsheets to record income and expenses, bridging software can connect to them and make your submissions to HMRC”.
Source: GOV.UK — Choose the right software for Making Tax Digital for Income Tax. We keep a free, re-checked list of every recognised bridging product, including the 17 with a free version.
And you do not have to take our word for the arithmetic. The tax logic behind our free calculators is covered by 81 unit tests that run before anything ships — the 2026/27 bands, Class 4 National Insurance, Payments on Account and Section 24. Check our maths for free first, then decide whether the £9 version is worth it to you.
Straight answer on the limits: this is a set of record-keeping and planning spreadsheets, not HMRC-recognised software, and it does not submit anything to HMRC on your behalf. If you need to send quarterly updates, our free list of recognised software shows which products do that, and which are free.
Questions before you buy
What exactly do I get, and how?
All four spreadsheets, downloaded the instant your payment clears (Paddle also emails you a secure link). They open in Excel, Google Sheets and Numbers. No account, no subscription and nothing to install.
Is it really cheaper than buying them separately?
Yes — the four tools are £9 each, £36 in total. The toolkit is £19, so you save £17 and get everything for the money side of self-employment in one go.
Do I need all four?
If you only need one, buy that one — each is £9 on its own product page. The toolkit is for sole traders and landlords who want the full set ready before Making Tax Digital lands in April 2026.
What happens when tax rates change?
Toolkit buyers get the updated spreadsheets free when the rates change for a new tax year — we email you the new files. Every formula is visible and editable, so you can also adjust them yourself.
What if it's not right for me?
There's a 14-day money-back guarantee across the whole toolkit. If it isn't useful, email us within 14 days for a full refund.
Secure checkout by Paddle · instant download · VAT handled for you · 14-day money-back guarantee