The MTD toolkit

Spreadsheets that actually do the maths

Working UK tax and money tools for sole traders, freelancers and landlords — the paid companions to our free calculators. Real formulas you own and can edit, not locked templates.

Screenshot of the Tax Estimator spreadsheet
Tax Estimator
Screenshot of the Rental ROI spreadsheet
Rental ROI
Screenshot of the Day-Rate Calculator spreadsheet
Day-Rate Calculator
Screenshot of the Invoice Tracker spreadsheet
Invoice Tracker
£19£36all four · save £17

The complete toolkit — all four spreadsheets

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.

See the bundle — £19 →

Or buy individually — £9 each

Self Assessment Tax Estimator 2026/27

Know what you owe HMRC before January, not after.

£9 →

Rental Property ROI & Yield Calculator

Work out whether a buy-to-let actually pays before you commit.

£9 →

Freelance Day-Rate & Profit Calculator

Most rate calculators ask what you charge. This one asks what you want to keep.

£9 →

Freelancer Invoice Tracker & Chase List

Stop wondering who still owes you money.

£9 →

Every purchase

New · for accountants and bookkeepers

MTD Practice Tracker 2026/27 — £39

Every client's quarterly updates on one sheet: who is not signed up, whose records are missing, what is filed, and which clients have already missed a quarter. A missed quarter keeps showing in red for the rest of the year rather than rolling away when the next deadline arrives.

See the practice tracker — £39 →