Wave is one of the few genuinely free cloud accounting platforms still in the market in 2025. For a sole trader or side-hustler watching every pound, the appeal is obvious: invoicing, expense tracking and basic reporting at no monthly cost. But the UK landscape is dominated by HMRC's Making Tax Digital regime, and that single fact reshapes the conversation entirely. At PushDigits, we are regularly asked whether Wave is a sensible starting point for a new UK business, so here is a candid view.
What Wave does well
Wave's core invoicing and bookkeeping module is well-designed for a free product. You can raise unlimited invoices, track income and expenses, attach receipts via a mobile app and pull together a basic profit and loss statement. The interface is clean, onboarding is fast, and there is no learning curve for a non-accountant. For a freelancer running a handful of clients with simple cash-basis records, that is genuinely useful.
Where it falls short in the UK
The big issue is HMRC alignment. Wave is a Canadian-origin product, and its UK feature set has historically lagged behind the established UK-first players. Specific gaps to be aware of:
- MTD recognition: Wave is not on HMRC's list of MTD-compatible software for VAT. If you are VAT-registered, Wave alone will not let you file returns through Making Tax Digital.
- UK bank feeds: Open Banking coverage for UK current accounts is patchy. Most UK businesses will end up importing CSVs manually, which destroys the time-saving promise.
- Payroll: Wave Payroll is not available in the UK at all. RTI-compliant payroll requires a separate tool.
- Self Assessment readiness: Reports do not map neatly to UK SA103 self-employment schedules or the upcoming MTD ITSA quarterly submission format.
When Wave makes sense
Wave can be a defensible choice in a narrow set of circumstances: a non-VAT-registered sole trader below the £50,000 MTD ITSA threshold, with no employees, who just needs a tidier alternative to spreadsheets for invoicing and expense tracking. We still recommend a brief annual review with an accountant to translate the figures into a proper Self Assessment, but as a low-cost holding platform it is workable.
When to upgrade
You should plan to move off Wave well before you hit any of these triggers:
- Approaching the VAT registration threshold of £90,000 in a rolling 12 months.
- Crossing the £50,000 gross income threshold that brings you into MTD ITSA from April 2026.
- Taking on your first employee and needing RTI payroll.
- Wanting to bring in a bookkeeper or accountant who works in Xero or QuickBooks (most UK practices do).
Graduating to MTD-ready software
Migrations from Wave are generally straightforward because transaction volumes are typically low. We export the trial balance, rebuild a UK-appropriate chart of accounts, and bring the client onto Xero, QuickBooks or one of the UK free options like Pandle or QuickFile depending on budget and complexity. Most micro businesses are settled into the new platform within a week.
How PushDigits supports your software choice
As ICAEW Chartered Accountants, Xero Platinum Partners and QuickBooks Elite Partners, we see the full spectrum of platforms in use across UK micro businesses. If you are starting out on Wave but want guidance on when and how to graduate, our team can review your setup and plan a clean transition. Explore our bookkeeping and Self Assessment services, or book a consultation to discuss your current software.