For UK builders and contractors

Pay your subbies from your phone. Get the CIS right.

Subbo works out the CIS, builds the weekly pay and keeps your right to work checks. All from your phone, on site.

  • Free for 8 weeks
  • No card, no contract
  • Never touches your money

The trial button opens your email app.

  • Accurate payroll
  • Save time
  • On the go
  • Built for construction

Four steps, from new subbie to month end

  1. Add your subbie

    Type their details or send them an invite. Check them on HMRC's own service, then record the rate and verification number in Subbo.

  2. Check they can work

    Do the right to work check on your phone. Subbo shows who still needs one, and a failed check blocks their pay.

  3. Approve and pay

    Approve the week's hours or day rate. Subbo works out the CIS and builds the pay run. Pay from your own bank, as now.

  4. Close the month

    See your CIS300 figures. Download every payment for your accountant. File with HMRC as you do now.

See how it works, step by step

Real screens from the worker app

What your subbies see on their own phone. Shown with demo data.

  • The worker app's My pay screen, listing four Friday payments of £920.00 from Demo Brickwork, each marked Paid.
    Every payment
  • A pay receipt in the worker app: You got £920.00, paid on 9 Oct 2026, with £180.00 CIS sent to HMRC from a £1,100.00 invoice.
    Your pay receipt
  • The worker app's pay summary: £4,860.00 of CIS taken off pay this tax year, with a bar for each tax month from April to March.
    CIS taken this year
  • A payment and deduction statement in the worker app for the tax month 6 Sept to 5 Oct 2026, from Demo Brickwork Ltd to Tomasz Nowak.
    Your tax statement

What works today

Not live yet: filing the CIS300 and checking subbies with HMRC from inside Subbo. You do both on HMRC's site, as now, using Subbo's figures.

See the sum in 5 seconds

At the 20% rate, labour only. Materials, VAT, 30% or day rates? Use the full calculator.

Free help, no sign-up

Real people. Real pay.

Try it free for 8 weeks

We are taking on 3 to 5 firms now. Built for firms paying 5 to 50 subbies a week. All we ask is 10 minutes a week of honest feedback.

Free for 8 weeks. No card. No contract. The button opens your email app. No email app? See our contact details.

Free trialCIS calculator