Free to use
Sole trader software pricing
Solo is free to use, and you pay when you send your tax return. Duo and Care include filing. Not in Making Tax Digital yet? Duo is free until your first Making Tax Digital deadline.
Kletta Solo
Just self-employed
£0
Pay when you send your tax return: £34.80 for Self Assessment or £58.80 for Making Tax Digital.
- Books and tax returnBuilt as you go, all year
- Receipts and CIS statementsSnap or upload, Kletta reads them
- Invoicing and mileageSend invoices, log business miles
- Check before you sendWith HMRC’s own calculation
- Most popular
Kletta Duo
Self-employed with a rental
£120/ year
Filing included. That’s £10 a month.
- Everything in SoloBooks, receipts, CIS, invoicing, mileage
- Filing includedNo filing pass needed
- Property income and expensesRental income and costs in one place
- Big purchasesTools, vans and equipment
Kletta Care
An expert checks it
£298.80/ year
Filing included. That’s £24.90 a month.
- Everything in DuoAll features, filing included
- Expert reviewYour return checked before you send it
- Bookkeeping reviewTransactions reviewed and reconciled. Needs a separate business bank account
- Accountant meetingsVideo calls on request
How it works
Free until your return goes to HMRC
Your return builds as you work. You check it and send it when you are ready. Under Making Tax Digital, your quarterly updates are included in your MTD filing pass.
Free
01Sign up
Start on the free Solo plan.
Free
02Snap your receipts
Photograph a receipt or upload a file. CIS statements too.
Free
03Kletta does the sums
Every expense and invoice is sorted into your tax return as you go.
Free
04Check the figures
With HMRC’s own calculation.
Paid when you send
05Send it to HMRC
£34.80 or £58.80 on Solo. Included on Duo and Care.
Why it matters
Ready in April, not January
Because your return builds all year, it can be ready when filing opens on 6 April. Most people still file in January, right before the deadline. Under Making Tax Digital you send updates every quarter, so most of the work is done by the time you send your last one.
Ready with Kletta
Most people file
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
- Jan
Up to 9 months earlier
- returns filed on 6 April 2026
- 86,270
- file in April
- 6 in 100
- Self Assessment returns a year
- 12m+
Sources: HMRC (12 May 2026), GOV.UK.
How Kletta compares
HMRC online
HMRC’s free service doesn’t support Making Tax Digital. Once you’re in MTD, you need software.
Accountants
Done for you, at accountant prices.
Kletta
Free all year, HMRC-recognised, pay only when you send your return.
Recommended by UK accountants
Accounting firms use Kletta to support their sole trader clients.
Frequently asked questions about pricing
See all questionsIs there free tax return software for sole traders?
Kletta Solo is free to use: your books and your tax return cost nothing to prepare, and you buy a filing pass when you send your tax return to HMRC.
Is Kletta really free?
Kletta Solo is free to use: your books and your tax return cost nothing to prepare. You pay for a filing pass when you send your tax return to HMRC, £34.80 for Self Assessment or £58.80 under Making Tax Digital. Duo and Care include filing.
Is there free MTD software for sole traders?
Kletta Solo is free to use for your books, your quarterly updates and your tax return. To send to HMRC under Making Tax Digital you buy a £58.80 MTD filing pass, which includes your quarterly updates. Duo and Care include filing.
Is Duo free if I’m not in Making Tax Digital yet?
Yes. If you’re not in Making Tax Digital yet, you get Kletta Duo, normally £120 a year, free until your first Making Tax Digital deadline.
What does a filing pass cost?
An MTD filing pass is £58.80 and a Self Assessment filing pass £34.80. Duo (£120 a year) and Care (£298.80 a year) include filing, so you don’t need a filing pass.
When can I file?
Filing for a tax year opens on 6 April. Because Kletta builds your return as you go, it can be ready then instead of in January.
Who sends the return to HMRC?
You do. Kletta prepares it and shows the figures with HMRC’s own calculation, and you send it when you are happy.
Is Kletta ready for Making Tax Digital?
Yes. Kletta is HMRC-recognised for Making Tax Digital for Income Tax (MTD ITSA). It keeps the digital records HMRC requires and sends your quarterly updates and tax return.
Can I add CIS statements?
Yes. Add your CIS statements alongside your receipts, and Kletta includes them in your return.
How is my data kept safe?
Your data is encrypted and stored in the EU/UK, and Kletta complies with UK GDPR. Bank connections run through Plaid, regulated by the FCA.
