Free accounting software can be enough for a very small UK business if the limits match your workflow. The key is to check what is genuinely included: invoicing, bank feeds, VAT, MTD support, reports and export options.
Best overall free accounting plan: Zoho Books
Zoho Books offers a genuine £0 plan for solopreneurs and micro businesses. It includes invoices, quotes, expenses, journals, receipt scans, bank and credit-card accounts, VAT returns, MTD VAT filing and more than 50 reports. The main trade-off is that the free tier has tighter user and automation limits than paid plans.
Best free option for a non-VAT sole trader: Sage Sole Trader Free
Sage Sole Trader Free is aimed at non-VAT-registered sole traders. It focuses on income and expenses, digital records and MTD for Income Tax readiness. If you need unlimited invoicing, receipt capture or more advanced features, Sage offers a paid sole-trader tier.
What about free trials?
Xero, QuickBooks and FreshBooks are not permanently free accounting platforms, but trials and promotional periods can still be useful for testing a workflow before paying. Do not confuse a temporary discount with a free plan.
When free software stops being enough
Upgrade when limits start creating manual work: too few users, no bank feed, weak reporting, missing payroll, no multi-currency or a lack of inventory support. Saving a monthly fee is not worthwhile if the software creates hours of extra admin.
Free plan comparison
| Option | Best for | Main limitation to check |
|---|---|---|
| Zoho Books Free | Micro businesses that want invoicing, expenses, banking, VAT and reporting | User, automation and usage limits are tighter than on paid plans |
| Sage Sole Trader Free | Non-VAT sole traders who mainly need digital records and MTD for Income Tax readiness | It is narrower than Sage’s paid accounting plans |
Before choosing a free plan
- Check whether the plan supports your VAT status.
- Confirm whether bank feeds and receipt capture are included.
- Look at invoice, user and transaction limits.
- Make sure you can export your records if you later move provider.
- Compare the paid upgrade path before building your workflow around the free tier.
Final recommendation
Zoho Books is the strongest general-purpose free option we found for UK micro businesses. Sage Sole Trader Free is particularly attractive for a simple non-VAT sole-trader setup.
Official information: Zoho Books pricing and Sage pricing.