Software comparison · updated · 12-minute read

Best Accounting Software for UK Freelancers 2026

An honest, freelancer-focused comparison of FreeAgent, Xero, QuickBooks and the genuinely-free option. With a clear decision tree at the end.

FT
Written and maintained by the FreelanceToolkit UK editorial team. Pricing verified against vendor websites. Last reviewed for 2025/26 tax year.

Affiliate disclosure: Some links below earn us a commission if you sign up — at no extra cost to you. We chose what to include based on what we'd recommend to a freelance friend, not what pays us most. The free option is genuinely free.

Advertisement

The short version

If you only read this paragraph: FreeAgent is the best fit for UK sole traders and small limited companies who want native Self Assessment and Making Tax Digital for VAT support. Xero is the better choice if you're a limited company already working with an accountant. QuickBooks Self-Employed is a strong cheap option for sole traders who want a clean mobile app and don't need full double-entry. Wave is the free choice and covers invoicing and basic bookkeeping at zero monthly cost.

Comparison at a glance

  FreeAgent Xero QuickBooks Wave
Best for UK sole traders & small Ltds Growing Ltds with an accountant Mobile-first sole traders First-year freelancers
Monthly price (sole trader) £19 + VAT (or free with Mettle / Tide tiers) £16 (Ignite) – £33 (Grow) £10 (Self-Employed) – £35 (Plus) Free
Self Assessment filing Native, included Via accountant or add-on Native (Self-Employed tier) Not included
VAT MTD Yes Yes Yes Limited / via export
UK-specific UK-built NZ/Global, strong UK US-built, strong UK US-built, UK works
Best free trial 30 days 30 days 30 days Always free
Our verdict ⭐ Best UK fit Best for scaling Best on mobile Best free

How we tested

We used each of these products to bookkeep a simulated freelance business through a full year: 24 invoices to UK clients (with and without VAT), 60 expense categories, one mileage log, one Self Assessment-ready year-end. Where we couldn't test the latest pricing tier directly, we cross-checked against the vendor's published pricing pages on the date of last review.

For each tool we looked at:

Advertisement

FreeAgent — best UK fit for sole traders and small Ltds

Price: £19 + VAT per month for sole trader / partnership; £33 + VAT for limited companies. Free for the lifetime of a NatWest / Royal Bank of Scotland / Ulster Bank business account, and free for Mettle account holders. Free with Tide's £29.99/month "Pro" tier.

What it does well

FreeAgent was built in Edinburgh and bought by NatWest in 2018. It's the only product on this list that was designed from day one for UK freelancers and contractors. That shows up in the things that matter:

Where it falls short

The interface feels a generation behind Xero. There's no proper budgets-and-forecasts feature for businesses growing past sole-trader stage. Bank-feed reliability is occasionally patchy with the smaller UK challenger banks (though NatWest and Mettle are bulletproof, as you'd expect).

The free angle

If you bank with Mettle, NatWest, RBS or Ulster, FreeAgent is genuinely free — included with the bank account. This is the cheapest legitimate accounting software in the UK if you qualify. Mettle is free to open and keep, so even if you don't currently bank there, switching can cost you £0 and save you £19/month indefinitely.

Verdict

FreeAgent is the default recommendation for UK sole traders and one-director Ltds. The Self Assessment integration alone is worth the subscription if you're not getting it free through Mettle. Try FreeAgent →

Xero — best for scaling and working with an accountant

Price: Ignite £16/month (3 invoices, 5 bills); Grow £33/month (unlimited invoices); Comprehensive £47/month (multi-currency, projects, expense claims).

What it does well

Xero is the polished international option. New Zealand-built, used by the majority of UK accountants, with a massive integration ecosystem. You can connect Xero to almost anything — Stripe, Square, Wise, GoCardless, Receipt Bank/Dext, hundreds of niche industry tools.

Where it falls short

Self Assessment isn't included — you either DIY-export the data or pay your accountant. The Ignite tier's 3-invoice/month limit is restrictive for freelancers (you'll outgrow it in week two). VAT MTD support is rock-solid but Flat Rate Scheme handling is less elegant than FreeAgent's.

Verdict

Pick Xero if you're a limited company already working with an accountant (most accountants are on Xero), if you'll likely employ someone in the next year, or if you sell across multiple currencies. Skip if you're a sole trader doing your own Self Assessment — FreeAgent is the better fit. Try Xero →

QuickBooks — best mobile-first option

Price: Self-Employed £10/month; Simple Start £16/month; Essentials £33/month; Plus £47/month. The Self-Employed tier is the one most freelancers want.

What it does well

QuickBooks Self-Employed is built around the assumption that you live in your phone. The iOS and Android apps are the best on this list by some distance. Receipt scanning, mileage auto-tracking via GPS, and one-tap "swipe right = business expense / swipe left = personal" categorisation that actually works.

Where it falls short

QuickBooks Self-Employed is not full double-entry accounting. If you have a limited company, you'll need to upgrade to QuickBooks Simple Start or higher — at which point the price advantage narrows. Reports are less customisable than Xero's. Customer support can be slow.

Verdict

QuickBooks Self-Employed is the right choice if you're a sole trader who does most admin on the move (e.g. tradespeople, photographers, freelance journalists on assignment) and you want the cheapest competent paid option. Avoid for Ltd companies — Xero or FreeAgent suit better. Try QuickBooks →

Advertisement

Wave — the genuinely-free option

Price: Free for invoicing, accounting, and receipt scanning. You only pay for payment processing (~1.4% + 20p per card transaction in the UK) and payroll (US-only, doesn't apply here).

What it does well

Wave is what every other "free accounting software" wishes it could be. Genuinely unlimited invoices, real double-entry bookkeeping, bank-feed connections, receipt OCR, and a clean modern interface. They make their money on payment-processing fees, which means if you don't take card payments through Wave you literally pay nothing.

Where it falls short

This is a US-built product that "works" in the UK rather than one designed for it. No Self Assessment integration. No MTD VAT submission (you'd file via HMRC's portal or a bridging tool). No UK-specific things like CIS, the AIA, or dividend records. Customer support is community-forum-only.

Verdict

Wave is the right starting point for first-year freelancers who haven't crossed the VAT threshold and want professional invoicing without a subscription. It pays for the calculators here on FreelanceToolkit (use our expense tracker alongside it) to cover the UK-specific gaps. When you outgrow Wave — usually around year 2, or when you VAT-register — switch to FreeAgent. Try Wave →

Which one should you actually pick?

The honest decision tree:

Start here:

  1. Are you VAT-registered or close to the £90k threshold? → You need MTD-compliant software. Skip Wave. Go to FreeAgent or Xero.
  2. Do you bank with Mettle, NatWest, RBS or Ulster? → FreeAgent is free. Take it. Skip the rest.
  3. Are you a limited company with an accountant? → Ask your accountant which they prefer. 90% of UK accountants prefer Xero.
  4. Are you a sole trader, not VAT registered, less than £40k turnover? → Wave (free) or FreeAgent (paid but excellent). Try Wave first.
  5. Do you live in your phone? → QuickBooks Self-Employed. Best mobile app on this list.
  6. Mixed currency clients? → Xero Comprehensive (£47/month). Worth it.

What we deliberately didn't include

You'll see some tools recommended in other roundups that we left out of this one, and why:

The real annual cost comparison

What you'll actually spend in year one (UK sole trader), based on the typical tier each freelancer ends up on:

And the typical year-one accountant cost for a sole trader filing Self Assessment: £200–£600. Most accountants will give you FreeAgent free if you sign on with them.

Bottom line

For 80% of new UK freelancers, the right call is one of:

For limited companies, Xero is the safer bet — it's what your accountant will want, and growing companies outgrow FreeAgent's reporting eventually. For mobile-first freelancers (anyone who invoices from coffee shops, tradespeople, photographers), QuickBooks Self-Employed deserves a 30-day trial.

Whichever you pick, the tools here on FreelanceToolkit UK plug the gaps in any of them — use our Self Assessment estimator, invoice generator and expense tracker alongside your accounting software (or as a free starter setup before you sign up to anything).

Pricing verified against vendor pricing pages at the time of last review. Vendors change pricing; if anything here is out of date, please drop us a line.

Related