Picking accounting software when you’re self-employed in the UK means more than just tracking invoices. You need MTD (Making Tax Digital) compliance, clean HMRC integration, support for Self Assessment, and ideally a mobile app that doesn’t make you want to throw your phone across the room.
This list was built around five criteria: MTD readiness, UK-specific tax features, value for money at freelancer scale, ease of use for non-accountants, and quality of bank feeds with UK banks. Every product here has been evaluated against those standards — not just general accounting features.
1. FreeAgent — Best Overall for UK Freelancers
FreeAgent is the closest thing to a purpose-built tool for UK freelancers. It was designed with the self-employed in mind, and it shows in every corner of the product.
The standout feature is its deep HMRC integration. FreeAgent generates your Self Assessment tax return directly from your bookkeeping data, lets you file it to HMRC in-app, and calculates your tax bill in real time as you log income. There’s no exporting to a spreadsheet, no cross-referencing figures — it’s genuinely connected.
MTD and VAT Compliance
FreeAgent is fully MTD for VAT compliant and is HMRC-recognised software for MTD for Income Tax Self Assessment (ITSA), which will affect most sole traders and landlords from April 2026. If you want to stay ahead of that without switching tools later, FreeAgent is the cleanest path.
The real-time tax estimate updates every time you log a transaction — useful if you pay tax on account, since you can see whether your January and July payments are likely to be accurate rather than waiting until January 31 to find out you’ve underpaid.
Pricing and the Free Option
- Sole trader plan: £19/month (+ VAT)
- Partnership/LLP plan: £29/month (+ VAT)
- Free with NatWest, RBS, or Mettle business accounts — this is a significant perk
The free tier through NatWest/RBS/Mettle makes FreeAgent the most cost-effective option on this list for freelancers who bank with those providers. Mettle in particular has become popular with UK freelancers specifically because of this pairing — a modern mobile-first business account plus full-featured accounting, both free.
Even at the paid price, it’s competitive: invoicing, expense tracking, time tracking, payroll (single director), bank feeds, and tax filing in one place. Over 100,000 UK businesses use FreeAgent, and it’s consistently recommended by UK accountants — meaning if you bring in a bookkeeper later, they’ll already know the product.
2. QuickBooks Self-Employed — Best for Sole Traders Just Starting Out
Foto: Vitaly Gariev
QuickBooks Self-Employed is the simplest entry point if you’re a sole trader with straightforward finances — one income stream, basic expenses, no employees, no VAT registration.
The interface is deliberately minimal. You connect your bank, swipe transactions left or right to categorise them as business or personal, and QuickBooks builds your tax summary from there. For freelancers who hate accounting admin, this low-friction approach is genuinely useful.
What It Does Well
- Automatic mileage tracking via GPS on mobile
- Simplified tax estimate that updates throughout the year
- HMRC bridging for MTD VAT
- Receipt capture with OCR
- Very low learning curve
Where It Falls Short
QuickBooks Self-Employed is a product for one specific type of freelancer: the sole trader who wants to spend as little time as possible on finances. If you issue complex invoices, need project tracking, work with multiple currencies, or plan to register for VAT, you’ll outgrow it quickly.
It also doesn’t produce a proper profit and loss statement or balance sheet — which matters the moment you need to show a lender, accountant, or potential business partner anything resembling real accounts. Think of it as a tax prep tool that happens to do invoicing, not a full accounting product.
Pricing starts at around £8/month (+ VAT) for the basic plan, which makes it the cheapest paid option here. There’s also a bundle that includes a tax filing service, worth checking if you’d otherwise pay an accountant £150–£300 to file your Self Assessment.
3. Xero — Best for Contractors and Growing Freelancers
Xero is where you go when your freelance business starts looking more like a small company. It’s more powerful than the other options on this list, and more complex — but if you’re billing multiple clients, running multiple projects, managing expenses across teams, or thinking about hiring, it repays the learning curve.
The bank reconciliation in Xero is particularly strong. It learns your categorisation rules, matches transactions accurately, and handles multi-currency with less friction than most competitors. For contractors who invoice in USD, EUR, or AUD while operating in GBP, this matters — Xero shows real-time exchange rates and handles the gain/loss accounting automatically.
Xero Projects and Reporting
Xero’s built-in project tracking lets you assign time, expenses, and costs to individual client projects, then generate profitability reports per project. This is a feature most freelance-focused tools either skip or bolt on poorly. If you want to know which clients are actually profitable after accounting for time spent, Xero gives you that clearly — something that becomes essential once you’re juggling more than three or four active clients simultaneously.
Integrations
Xero connects with over 1,000 third-party apps — Stripe, Shopify, Pipedrive, Gusto, Dext, and dozens of payroll and CRM tools. If your freelance stack is already complex, Xero plugs in cleanly. The Xero + Dext combination, where Dext auto-extracts and codes receipts before they hit Xero, is particularly popular with UK contractors who need clean, audit-ready books.
Pricing:
- Starter: £15/month — capped at 20 invoices and 5 bills per month
- Standard: £30/month — unlimited, most freelancers here
- Premium: £42/month — multi-currency
The Starter plan is too restrictive for anyone actively freelancing. Standard is the realistic entry point.
4. FreshBooks — Best for Invoicing-Heavy Freelancers
Foto: Jakub Zerdzicki
FreshBooks is built around the invoicing workflow, and it does that better than any other tool on this list. If your day-to-day involves sending detailed proposals, converting them to invoices, chasing late payments, and billing by the hour, FreshBooks feels like it was designed specifically for you.
The client portal is a standout feature. Clients get a branded portal where they can view their invoices, make payments, and see project updates. For agencies, consultants, and creative freelancers managing ongoing client relationships, this adds professionalism that generic invoicing tools can’t match.
Time Tracking and Retainers
FreshBooks has native time tracking that logs hours directly to client projects and auto-populates invoices. Retainer billing — where you agree a fixed monthly fee with a client — is handled cleanly, with automated recurring invoices and balance tracking.
Payment processing is built in: FreshBooks connects with Stripe and GoCardless, so UK clients can pay by card or direct debit directly from the invoice. Late payment chasers go out automatically on a schedule you set once — for freelancers who dread chasing unpaid invoices, that automation alone justifies the subscription.
UK-Specific Limitations
FreshBooks is a North American company that has expanded to the UK market. MTD VAT is supported, but the Self Assessment integration is less mature than FreeAgent’s. If HMRC filing is your main pain point, FreshBooks is not the strongest choice. If it’s invoicing, client management, and time tracking, it’s excellent.
Pricing:
- Lite: £7.50/month — 5 clients
- Plus: £12.50/month — 50 clients
- Premium: £22/month — unlimited clients
5. Sage Accounting — Best for Freelancers Who Want a Trusted UK Brand
Sage has been the dominant name in UK business accounting for decades. Sage Accounting (their cloud product, formerly Sage One) is the modern, simplified version aimed at small businesses and the self-employed.
It handles the full range of UK accounting needs: VAT returns, MTD submissions, Self Assessment support, payroll, and bank reconciliation. The UI is more traditional than FreshBooks or FreeAgent, but it’s stable, well-documented, and backed by a large UK support team.
What Sets It Apart
Sage’s phone support is UK-based — not routed overseas — and consistently rated well on Trustpilot and G2 for response times. For freelancers who prefer picking up the phone over waiting on a chatbot, that’s a meaningful difference from most cloud-native competitors.
Sage Accounting uses double-entry bookkeeping throughout, which produces accountant-ready books out of the box. If you work with an external accountant, they can access your Sage data directly without you exporting reports or reconciling figures offline. The audit trail is clean and comprehensive.
The AutoEntry integration handles receipt capture automatically — photograph a receipt on mobile, AutoEntry extracts the data, and it’s posted to the correct account. It’s an add-on rather than built-in (unlike FreeAgent’s expense module), but works reliably once configured. Cash flow forecasting is included in the standard plan, which is genuinely useful for freelancers managing irregular monthly income.
Sage Accounting Start (£14/month + VAT) covers basic invoicing and bank reconciliation. Sage Accounting (£28/month + VAT) adds cash flow forecasting, quotes, and purchase invoices — which is where most active freelancers will land.
6. Zoho Books — Best Value for Money
Foto: Tima Miroshnichenko
Zoho Books is the value play. It offers a feature set that rivals Xero at roughly half the price, and its free plan — available for businesses under £35,000 annual turnover — is one of the most generous free tiers in the market.
MTD VAT is supported. The invoicing module is clean and customisable, with automatic payment reminders that go out at intervals you define. Bank feeds work reliably with most UK banks via Open Banking. Zoho Books also connects natively with the rest of the Zoho ecosystem (CRM, Projects, Inventory), which is useful if you’re already running other Zoho tools.
Multi-currency is available on the Professional plan at £22/month — cheaper than Xero’s Premium tier at £42/month for the same capability. If you’re a UK contractor invoicing international clients and cost is a priority, Zoho Books deserves a serious look before defaulting to Xero.
The Catch
Zoho Books is less widely adopted in the UK than FreeAgent or Xero, which means your accountant may not be familiar with it. If you work with an external accountant and plan to share your books, check compatibility first — some accountants charge more for time spent learning an unfamiliar platform, which can erase the cost savings quickly.
Pricing:
- Free plan: up to £35,000 turnover, 1 user
- Standard: £12/month — 3 users, 5,000 invoices
- Professional: £22/month — unlimited invoices, projects, purchase orders, multi-currency
Comparison Table
| Software | MTD Compliant | Self Assessment | Starting Price | Best For |
|---|---|---|---|---|
| FreeAgent | Yes | Yes (in-app filing) | Free (with NatWest/RBS/Mettle) | Most UK freelancers |
| QuickBooks SE | Yes | Yes (bridging) | £8/month | Sole traders, minimal needs |
| Xero | Yes | Via accountant | £15/month | Contractors, growing businesses |
| FreshBooks | Yes | Limited | £7.50/month | Invoicing-heavy freelancers |
| Sage Accounting | Yes | Yes | £14/month | Those who want UK-brand support |
| Zoho Books | Yes | Limited | Free | Value-conscious freelancers |
Which One Should You Actually Use?
Foto: Mikhail Nilov
The honest answer depends on where you are in your freelance career:
Just starting out — QuickBooks Self-Employed or Zoho Books free plan. Low cost, low complexity.
Established sole trader with 5–15 clients — FreeAgent. The HMRC integration alone justifies the price, and it’s free if you bank with NatWest or Mettle.
Contractor or limited company director — Xero. More headroom, cleaner bank reconciliation, project reporting that scales with your work.
Agency owner or consultant with complex client billing — FreshBooks. The invoicing workflow and client portal are unmatched.
Want a UK institution behind your software — Sage Accounting. Reliable, well-supported, accountant-friendly.
The most common mistake freelancers make is picking the cheapest option early and migrating twice as their business grows. FreeAgent sits in the sweet spot — capable enough for a growing business, priced fairly for a solo operator, and built specifically for the UK tax environment.
If you’re ready to stop guessing at your tax bill and start the year with clean books, FreeAgent’s 30-day free trial is the lowest-risk starting point. Connect your bank account, import three months of transactions, and see how much admin time you get back.
Frequently Asked Questions
What is MTD compliance and why is it important for UK freelancers?
MTD (Making Tax Digital) compliance is required by HMRC from April 2026 for most sole traders. It requires your accounting software to directly file tax data to HMRC without manual spreadsheet exports, keeping you compliant and audit-ready.
Is FreeAgent free for UK freelancers?
FreeAgent is free if you have a NatWest, RBS, or Mettle business account. Otherwise, the sole trader plan costs £19/month plus VAT, with partnership plans at £29/month plus VAT.
How does FreeAgent handle Self Assessment filing?
FreeAgent generates your Self Assessment tax return directly from your bookkeeping data, files it to HMRC in-app, and calculates your tax bill in real time—no spreadsheets or manual cross-referencing needed.
