Sole Trader Tax Workspace.

Put in one income figure.

Get your whole Self Assessment back.

What's inside

Thirty day refund, no questions. Files yours to keep, VAT included.

Free Survival Kit

The UK MTD for ITSA Survival Kit

Two pages, plain English. The deadlines, the year 1 grace, your seven step action list, the bits HMRC actually wants each quarter, and the gotchas that catch the year 1 cohort.

Free download (PDF)
A4, two pages, around 175 KB. No email required.
The Sole Trader Tax Workspace computing income tax, Class 4 NI, the effective rate and the monthly set-aside from one income figure
A real page The income tax and National Insurance working Not a stock mockup. The actual sheet, computing a full Self Assessment from one income figure.
Click the page to enlarge
What's inside

A seven sheet workbook, built on the 2026/27 bands

One income figure in, and the workbook returns your whole Self Assessment: income tax, Class 4 National Insurance, the effective rate and the monthly amount to set aside, each mapped to the box it belongs in on the return. It comes with a Companion Guide and a first-time Walkthrough, and it's built for Making Tax Digital from day one.

Income tax and NI sheet

Profit in, income tax and Class 4 National Insurance out, with the effective rate and the monthly set-aside, on the 2026/27 bands.

SA return mapping

Every figure tied back to the box it belongs in on the SA103 and SA100, so you copy straight across.

MTD for Income Tax tracker

The quarterly deadlines laid out, so the new Making Tax Digital cadence runs itself.

Companion Guide and Walkthrough

A plain English guide to the workbook, plus a first-time Self Assessment walkthrough, so nothing is a guess.

The maths

Pay once, not every year

This pack The credible equivalent Their cost Ours, once
Sole Trader Tax Workspace FreeAgent sole trader planaccounting software, billed monthly £228a year £19Yours to keep

Comparable price verified June 2026 from the supplier's own listing. Our price includes VAT.

Free tools that pair with this pack

Try the free checks first

Two quick checks that share the statute behind the workspace. Free, no email gate.

01Pairs with Sole Trader

IR35 Status Checker

Seven CEST-style questions, instant verdict, with the case law cited.

Open checker
02Pairs with Sole Trader

MTD Penalty Clock

Live countdown to MTD for Income Tax, with the penalty bands and points.

Start clock
Questions

Before you buy

  1. Q1What do I need to open it?

    A spreadsheet app. The workbook is a standard .xlsx and opens in Excel, Numbers or Google Sheets. The guide and walkthrough are PDFs. You download the files and they're yours, no login, no subscription.

  2. Q2What happens when the rates change?

    You get the updated file, free, in the same order line as your purchase. The figures live in named cells, so an April update is a re-export, not a rewrite.

  3. Q3Is this tax advice?

    No. It's a tool that does the working using the current HMRC figures, with the sources cited so you can check it. For a decision that turns on your specific circumstances, speak to an accountant.

The boring admin, done.

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