Yes, if what you need is accounting rather than just invoicing. QuickBooks is accounting software: it keeps double-entry books, pulls in bank feeds, categorises expenses and supports Making Tax Digital VAT filing. For a VAT-registered builder or a firm with staff on payroll, that breadth is the point — and because so many UK accountants and bookkeepers already work in QuickBooks, handing over your year-end is usually painless.
It fits less well for the sole trader whose only paperwork problem is getting a professional invoice out before leaving the job. QuickBooks pays off once you've connected your bank, set up your categories and learned an accounting interface. If your turnover is under the £90,000 VAT registration threshold and your accountant already does your Self Assessment, you may be paying for features you never open.
Making Tax Digital for Income Tax changes the picture for some sole traders. Under HMRC's announced timetable it applies from 6 April 2026 to people with qualifying income over £50,000, then to those over £30,000 from April 2027 and over £20,000 from April 2028. If you're in scope, you'll need MTD-compatible software such as QuickBooks, or an accountant who files for you. AllSquare does not file anything with HMRC.