Best Free Accounting Software UK 2026

Introduction

When you are self-employed or running a small business, every pound matters. Free accounting software sounds ideal, and there are genuine options available in the UK. But free always comes with trade-offs, and understanding those trade-offs before committing your financial data to a platform is important.

This guide reviews the genuinely free accounting software available to UK businesses in 2026, explains what you get and what you give up, and helps you make an informed decision.

FreeAgent (via NatWest)

FreeAgent is not free for everyone, but if you have a business bank account with NatWest, Royal Bank of Scotland, or Ulster Bank, you get full access at no cost. This is the best free option available by a considerable margin.

What you get: comprehensive bookkeeping, invoicing, bank feeds, expense tracking, Self Assessment preparation, MTD filing, and financial reports. FreeAgent is a full-featured accounting platform, and getting it free through your bank account is genuinely excellent value.

The catch: you need to bank with NatWest Group. If you switch banks, you lose access (or start paying around £19 per month). This creates a degree of lock-in that is worth considering.

Wave

Wave is a genuinely free accounting platform with no paid tier required for basic features. You get invoicing, expense tracking, bank connections, and financial reporting at no cost.

What you get: unlimited invoicing, expense tracking, receipt scanning, basic financial reports, and bank connections.

The catch: Wave is a North American product. Its UK support is limited, it does not handle UK tax requirements well, and MTD compliance is not built in. VAT handling is basic, and you would need separate tools for HMRC filing. Wave also monetises through payment processing fees, so the service is not truly without cost if you use its payment features.

Pandle

Pandle offers a free tier for UK businesses. The free plan includes basic bookkeeping, invoicing, and bank feeds. It is a UK-based product that understands UK tax requirements.

What you get: transaction management, invoicing, bank feeds via Open Banking, basic reports.

The catch: the free plan does not include MTD filing, which means you need to upgrade (around £5-£9 per month) or use a separate filing tool. Some features are restricted on the free tier.

Countingup (Free Plan)

Countingup offers a free business bank account with basic automated bookkeeping. Transactions through your Countingup account are automatically categorised, and you get basic tax estimates.

What you get: free business bank account, automatic transaction categorisation, basic expense tracking, receipt capture.

The catch: bookkeeping only covers transactions through your Countingup account. If you have other bank accounts or credit cards, those are not included. The free plan lacks MTD filing and detailed tax features. You would need the Pro plan at around £14.99 per month for those.

Tide (Free Plan)

Tide's free business bank account includes basic expense categorisation and invoicing. It is popular and well-designed.

What you get: free business bank account, transaction categorisation, invoicing, basic expense tracking.

The catch: like Countingup, bookkeeping only covers your Tide transactions. MTD compliance requires integration with a paid accounting platform like Xero or QuickBooks.

HMRC's Own Tools

HMRC provides free tools for MTD filing. The HMRC app and online services allow you to file VAT returns and Self Assessment. There are also free bridging tools available for basic MTD for VAT compliance.

What you get: free MTD filing, Self Assessment submission, tax calculations by HMRC.

The catch: these are filing tools, not bookkeeping tools. You still need to maintain accurate records throughout the year using some other method. The interfaces are functional rather than user-friendly.

Spreadsheets

A spreadsheet is technically free accounting software. HMRC accepts spreadsheet-based records, and with an MTD bridging tool, you can file from a spreadsheet.

What you get: complete control, no subscription fees, flexibility.

The catch: spreadsheets are error-prone, time-consuming, and lack automation. There are no bank feeds, no receipt scanning, and no tax calculations. They also require discipline to maintain consistently. This approach works for very simple businesses but quickly becomes impractical as transaction volumes grow.

The Hidden Cost of Free

Free software saves you money on subscriptions, but it often costs you in other ways. Time is the biggest hidden cost. Manual data entry, limited automation, and the need for workarounds all consume hours that you could spend earning money.

Errors are another hidden cost. Without automated categorisation and tax calculations, mistakes are more likely. A single tax error can cost far more than a year of accounting software subscriptions.

And missing tax reliefs is perhaps the most expensive hidden cost of all. Without proactive tax monitoring, you may be paying more tax than you need to. A platform that identifies a tax relief worth £500 has paid for itself many times over.

When Free Makes Sense

Free accounting software is a reasonable choice when you are just starting out and have very few transactions, when your finances are extremely simple (one income source, minimal expenses), when you are testing whether self-employment is right for you before committing to ongoing costs, or when you have an accountant who handles everything and just needs basic records from you.

When Paid Makes Sense

Paid accounting software becomes worthwhile when your transaction volume makes manual entry impractical, when you need MTD compliance (which most free tools do not include), when you want accurate, real-time tax estimates, when your time is worth more than the subscription cost, or when you want proactive tax intelligence that identifies reliefs and opportunities.

Our Honest View

Accounted is not free. Our Starter plan costs £14 per month (see our pricing page). We could offer a stripped-down free tier, but we believe that would deliver a poor experience and not genuinely help sole traders.

What we do offer is AI-powered bookkeeping that reduces your bookkeeping time to minutes per month. Penny handles categorisation, receipt processing, mileage tracking, and tax monitoring automatically. For most sole traders, the time saved and tax optimisation identified far exceed the subscription cost.

If you genuinely need free, FreeAgent through NatWest is the best option. But if your time has value, investing in a platform that does the work for you is almost always the better financial decision.

Sign up for Accounted and see how much time you save when your bookkeeping does itself.