· ~2,000 words · Neutral comparison.

Xero and FreeAgent are the two UK accounting platforms most-used by sole traders and small Ltds in 2026. Both are MTD-compliant. Both connect to every major UK challenger bank. They differ structurally in pricing model, target user, and how they fit alongside a UK accountant. This is a neutral side-by-side.

Side-by-side comparison

Best for — pick by scenario

• UK sole trader, want lowest cost: FreeAgent via Mettle — £0/month, with native Self Assessment filing
• Ltd company with growth plans: Xero — broader feature set, more scaled integrations
• Working with a UK accountant: Either — Xero has wider accountant adoption; FreeAgent is fine if your accountant uses it
• Multi-currency invoicing: Xero — more mature multi-currency support
• Want it free standalone: FreeAgent — only free option if you bank with Mettle/NatWest

Pros and cons

Xero

Pros

• Industry-leading accountant ecosystem
• Strongest at scale (multi-employee, multi-entity, multi-currency)
• Vast app marketplace

Cons

• Not free at any tier
• Slightly steeper learning curve for sole-trader-scale work
• Self Assessment requires accountant or paid add-on

FreeAgent

Pros

• Genuinely free if you bank with Mettle / NatWest / RBS
• UK-built; native Self Assessment for sole traders
• Simple, sole-trader-friendly UI

Cons

• Standalone pricing (£19/mo) above Xero starter
• Less polished at multi-employee scale
• Fewer integrations than Xero ecosystem

Pricing in detail

Xero publishes three UK tiers: Ignite (£16/month), Grow (£33/month), and Comprehensive (£47/month). The Ignite tier covers single sole-trader use; Grow adds multi-user and bills; Comprehensive adds expenses and projects. Add-ons (payroll, expenses tracking) cost extra at the lower tiers. FreeAgent is simpler: a single £19/month tier with everything included, or genuinely free if you bank with Mettle (which is itself free), NatWest, RBS or Ulster. For most UK sole traders the FreeAgent + Mettle bundle works out to £0/month vs Xero Ignite at £16/month + payroll add-on. For Ltd contractors needing multi-user, Xero Grow becomes more compelling — but FreeAgent free via Mettle still wins on monthly cost. Pricing accuracy varies — verify on each provider's site before signing as both adjust tiers periodically.

UK-specific features

FreeAgent was built in the UK for UK freelancers and the product reflects that: native Self Assessment filing for sole traders, MTD for VAT submission, dividend voucher generation for Ltd directors, the right HMRC chart of accounts out of the box. Xero is a New Zealand / global product that handles UK rules competently but doesn't lead on them — you'll need an accountant or paid add-on for Self Assessment, and some UK-specific workflows feel grafted on rather than native. For UK sole traders specifically, FreeAgent's native UK feel is a meaningful daily advantage. For Ltds working with an accountant, Xero's broader ecosystem usually offsets that.

Working with an accountant

Most UK accountants are Xero-certified as their primary platform. FreeAgent has a smaller but still substantial UK accountant ecosystem, particularly among contractor specialists (Gorilla, Nixon Williams etc. typically bundle FreeAgent). If you already have an accountant, ask which they prefer — switching to their preferred platform usually saves them billable hours that pass through to you. If you don't yet have an accountant and might hire one later, Xero is the safer default for compatibility.

Migration and lock-in

Both platforms export to CSV. Bank-feed setup is straightforward on either — same Open Banking infrastructure underneath. The harder part is moving historical transactions if you switch mid-year: opening balances, VAT history, year-end position. Either way, plan to do the switch at year-end if possible. Neither platform aggressively locks you in, but both have learning curves; expect 1–2 weeks of friction during transition.

Common mistakes when picking

Three patterns that catch UK freelancers out. First — picking Xero because everyone recommends it, then never using the advanced features the price tier includes. Most sole traders are better off on FreeAgent free via Mettle and saving £200/year. Second — picking FreeAgent because it's free, then outgrowing it when the business scales beyond a single director and a few clients. Build with the right horizon. Third — picking either without checking what your accountant uses. Switching mid-year to align with your accountant's preferred platform costs less than maintaining a mismatch.

Real UK freelance scenarios

A copywriter on £45k annual revenue, no employees, simple sole trader: FreeAgent via Mettle, £0/month, native Self Assessment. A web developer with a Ltd at £90k profit drawing salary + dividends, one part-time VA on PAYE: Xero Grow (£33/month) for the multi-user payroll. A photographer running a Ltd, VAT-registered, working with an accountant: probably Xero (whichever the accountant prefers), or FreeAgent if accountant is FreeAgent-certified. A consultant at £150k+ profit, considering retained earnings and pension planning: Xero with accountant collaboration; FreeAgent's UK depth less of an advantage at this scale.

How to choose between them

For most UK freelancers the right approach is to test both — most providers in this category offer either free tiers or free trials. The structural differences described above usually become clearer once you've used each for a week of real work. If you don't have time to test, the best-for matrix above maps the most common UK freelance situations to a recommended pick.

The recommendation framework here is editorial — we describe each provider's structural strengths and weaknesses rather than ranking them with fabricated scores. The right choice depends on your specific situation: revenue level, business structure, client mix, and what other software you're already using.

Where this fits in the wider stack

This comparison is part of the UK Accounting Hub. Related comparisons and deep-dives are linked from there. For the full UK freelance operating stack, see the recommended tools page and the freelance productivity stack guide.