Honest Comparison

FlashBill vs QuickBooks for UK Sole Traders

QuickBooks is well-known, but how does it compare for UK CIS contractors and sole traders who need fast, compliant invoicing without the complexity?

Feature ⚡ FlashBill QuickBooks
Starting PriceFree / £9/mo£10/mo (Self-Employed), £30/mo (Simple Start)
CIS Deduction Calculation✓ Native, automatic✗ Not available on Self-Employed
Domestic Reverse Charge VAT✓ Built in✗ Not available
Late Payment Act Notices✓ Automatic✗ Not available
Unlimited Invoices✓ From £9/mo~ Limited on Self-Employed
Online Payments✓ Stripe, Apple/Google Pay✓ Via PayPal/Stripe
CIS Statement PDF✓ Included✗ Not available
Free Plan✓ 5 invoices/month✗ 30-day trial only
Self Assessment help~ Reports & export✓ On Self-Employed plan
Mileage Tracking✓ On Self-Employed plan

FlashBill is better for

CIS subcontractors & construction trades

  • Native CIS deduction calculation
  • Domestic Reverse Charge VAT
  • Late Payment Act enforcement
  • Cheaper for unlimited invoicing
  • No accountant needed to set up

QuickBooks is better for

Sole traders tracking expenses & mileage

  • Automatic Self Assessment filing
  • Mileage and expense tracking
  • Connecting bank accounts
  • Tax estimate forecasting
  • Broader accounting features

The Key Difference: CIS Support

QuickBooks Self-Employed — the plan most sole traders use — has no CIS support at all. If you're a CIS subcontractor, you'd need to upgrade to at least the Simple Start plan at £30/month and then configure CIS manually, which requires accounting knowledge.

FlashBill handles CIS on every plan, including the free one. Select the deduction rate (0%, 20% or 30%), and the correct amounts are calculated and shown on the invoice automatically.

Pricing for UK Tradespeople

QuickBooks Self-Employed costs £10/month but won't do CIS. QuickBooks Simple Start (with CIS) costs £30/month. FlashBill Starter with full CIS costs £9/month — a third of the price.

When QuickBooks Makes Sense

If you're a sole trader who doesn't deal with CIS, and you want help tracking mileage, connecting your bank account, and preparing for Self Assessment, QuickBooks Self-Employed is reasonable. It does those things well. But if CIS is part of your working life, it's the wrong tool.

The CIS-first alternative to QuickBooks

FlashBill is purpose-built for UK tradespeople. Free to start, no credit card, CIS built in from day one.

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