Best Accounting Software Guide 2026 for UK Small Businesses

For years, accounting software was a “nice to have” — a tidier alternative to a shoebox of receipts. In 2026, for a great many businesses, it became a legal necessity.

From April 2026, Making Tax Digital for Income Tax requires sole traders and landlords with qualifying income over £50,000 to keep digital records and submit quarterly updates to HMRC using compatible software. So the question is no longer *whether* to use software, but *which* one. At Ellis & Co, we work with all the major platforms every day, so here is our honest 2026 guide:

A quick breakdown

*FreeAgent is free for NatWest, Royal Bank of Scotland, Ulster Bank and Mettle business account holders. Prices are indicative, exclude VAT and are correct at the time of writing. But always check the provider’s current pricing!
**Sage offers a free “Individual” plan for basic digital record-keeping through accountancy partners. As a Sage partner, Ellis & Co can set clients up on the right Sage plan, including discounted partner rates.

The main players in 2026

QuickBooks — the all-rounder

QuickBooks is a strong default for sole traders and growing small businesses. It is HMRC-recognised for Making Tax Digital, has a dedicated low-cost Sole Trader plan, and its AI-assisted bookkeeping and receipt capture save real time. If you want one tool that grows with you from side hustle to limited company, it is hard to beat.

Xero — built to scale

Xero is a favourite among accountants (ourselves included) for businesses that are scaling. Its strengths are a vast library of app integrations, clean multi-user collaboration and excellent bank reconciliation. It sits a little higher on price than the entry-level rivals, but for a business juggling stock, projects or a growing team, the extra power pays off.

FreeAgent — the freelancer’s friend

FreeAgent is purpose-built for freelancers, contractors and micro-businesses, with a flat fee that includes everything. The headline, though, is that it is free if you bank with NatWest, RBS, Ulster Bank or Mettle. This makes it the obvious first stop for many one-person businesses looking to become MTD-ready at no extra cost.

Sage — the established name

Sage has been a fixture of UK accounting for decades. Sage Accounting supports Making Tax Digital and plugs into a broader ecosystem covering payroll, invoicing and reporting. It suits established businesses that value a mature, well-supported platform and may already use other Sage products.

How to choose the right software

Do not start with the brand, start with your business. Ask yourself:

• Are you MTD-mandated? If your qualifying income is over £50,000, compliant software is non-negotiable from April 2026. Check the official list of MTD-compatible software.
• How complex are you? A solo consultant has very different needs from a business with stock, staff and multiple revenue streams.
• What does your bank offer? A free FreeAgent subscription can settle the decision on its own.
• Will it grow with you? Switching software mid-year is a hassle; pick a platform that fits where you are heading, not just where you are.
• Does your accountant support it? Software your accountant knows well means faster help and cleaner year-ends.

A note from the boardroom

“The best software is the one you will actually use and the one that keeps you compliant without you having to think about it,” says John Moorhouse, one of our Directors at Ellis & Co. “We are software-agnostic on principle. Our job is to match the tool to the business, set it up properly, and make sure the quarterly MTD updates become a non-event.”

Let us set it up for you

Choosing the platform is only half the job. Configuring it correctly, connecting your bank feeds and getting your quarterly MTD updates flowing is where the value is. As certified partners across all the major platforms, we help businesses right across the North West and North Wales, from our offices in Chester, Warrington and Wrexham, select, set up and run the right software. 

Speak to our team for a straightforward recommendation based on your business and not a sales pitch.

About Ellis & Co

Ellis & Co is a leading firm of chartered accountants and business advisers specialising in accountancy & audit, bookkeeping, payroll, tax planning and business advisory services. We work with everyone from start-ups to established companies. With experienced teams in Chester, Warrington and Wrexham, we offer personalised solutions that help businesses succeed.

FAQs

What is the best accounting software for a UK sole trader in 2026?

For most sole traders it is QuickBooks or FreeAgent. QuickBooks offers a low-cost Sole Trader plan and scales as you grow; FreeAgent is free if you bank with NatWest, RBS, Ulster Bank or Mettle. Both are HMRC-recognised for Making Tax Digital.

Does my accounting software need to be MTD-compatible?

If you are a sole trader or landlord with qualifying income over £50,000, yes. From April 2026 you must use software that can keep digital records and submit quarterly updates. HMRC publishes an official list of compatible products.

How much does accounting software cost in 2026?

Entry-level plans typically start from around £10–£18 per month plus VAT, with mid-tier plans at £22–£42. FreeAgent is free for customers of certain banks. Prices change, so always confirm with the provider.

Can I switch accounting software partway through the year?

You can, but it is easiest at the start of a financial year or quarter. Your accountant can migrate your data and opening balances cleanly to avoid gaps in your MTD records.

Do I still need an accountant if I use accounting software?

Software records the numbers. It does not plan your tax, spot reliefs, or handle complex decisions like incorporating. The two work best together, where good software makes your accountant faster and cheaper.