Built for UK Traders & Contractors

Invoice faster.
Get paid faster.

Professional invoicing with CIS, VAT, and Late Payment Act built in. Trusted by UK builders, sole traders, and contractors.

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This month
£4,820
↑ 12% vs last month
FlashBill
INV-0047 · Due 30 Apr 2025
PAID
Billed To
Redwood Construction Ltd
🏗 CIS Contractor · 20% deduction
Labour — Plumbing works £2,000.00
Materials £480.00
Subtotal£2,480.00
VAT (20%)£496.00
CIS Deduction−£400.00
Amount Due£2,576.00
Stripe Payment
✓ Received
Apple Pay · 2 min ago

Works with

Stripe Apple Pay Google Pay CIS Compliant CSV Export Xero-Friendly

Everything you need

Built for the way
UK traders work

From on-site quotes to bank payments — FlashBill handles the paperwork so you can focus on the job.

⚡
Instant PDF Invoices
Professional branded invoices generated in seconds. Send by email or share a payment link.
PDF + Email
🏗️
CIS Calculations
All 6 CIS × VAT combinations handled automatically. TC-01 to TC-06, no spreadsheets needed.
CIS Compliant
💳
Get Paid Online
Stripe, Apple Pay and Google Pay on every invoice. Clients pay in seconds from their phone.
Stripe Powered
⚖️
Late Payment Act
Automatic interest and compensation notices under the Late Payment of Commercial Debts Act 1998.
8% + BoE rate
🔐
Two-Factor Auth
TOTP 2FA, magic links, and encrypted bank details. Your financial data stays yours.
Secure
📱
Works on Any Device
PWA — install it on your phone like an app. Send invoices from the van, on site, anywhere.
PWA

Made for the UK

UK compliance,
built in.

FlashBill is designed from the ground up for UK contractors, sole traders and limited companies.

  • ✓ CIS Statement PDF — monthly deduction certificates for your accountant
  • ✓ VAT invoice format compliant with HMRC requirements
  • ✓ Late Payment of Commercial Debts (Interest) Act 1998
  • ✓ Companies House lookup — autofill client details instantly
  • ✓ Bank transfer details with sort code & account number
  • ✓ Credit notes with CN-prefix numbering
Code Scenario Net Due
TC-01 VAT Standard, CIS on labour £2,576
TC-02 VAT Reverse Charge £1,680
TC-03 No VAT, CIS 20% £2,080
TC-04 No VAT, CIS 30% £1,960
TC-05 VAT Standard, No CIS £2,976
TC-06 No VAT, No CIS £2,480

Simple pricing

Start free, scale
when you're ready

No hidden fees. No annual lock-in. Cancel anytime.

Free
£0
forever
  • 5 invoices per month
  • PDF generation
  • 1 client
  • Email support
  • CIS calculations
  • Stripe payments
  • Late Payment notices
Get Started
Most Popular
Starter
£9
per month
  • Unlimited invoices
  • CIS × VAT (all 6 types)
  • Unlimited clients
  • Stripe + Apple/Google Pay
  • Late Payment Act notices
  • CIS Statement PDF
  • Priority support
Start Free Trial
Pro
£19
per month
  • Everything in Starter
  • Quotes & proposals
  • Accountant portal
  • Auto payment reminders
  • Companies House autofill
  • Priority support
  • Custom email domain
Coming Soon

What traders say

Trusted across the UK

★★★★★

"Finally an invoicing app that actually understands CIS. I used to spend 30 minutes per invoice — now it's 2 minutes."

🔨
Dave Hartley
Plumber · Birmingham
★★★★★

"The late payment notice feature is brilliant. Sent one last month and got paid the same day. Worth every penny."

🏗️
Sarah Briggs
Builder · Manchester
★★★★★

"My accountant loves that I send him the CIS statement PDF each month. Super professional, clients take me more seriously now."

⚡
Tom Ashworth
Electrician · Leeds

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paid faster?

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