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
- Free 8-week trial
- No card, no contract
- CIS to the penny
- Right to work on your phone
- Worker app in 14 languages
- Never touches your money
- 8weeks free, no card
- 4steps, new subbie to month end
- 3CIS rates worked out: 20%, 30% and 0%
- £0of your money we ever hold
Four steps, from new subbie to month end
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.
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.
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.
Close the month
See your CIS300 figures. Download every payment for your accountant. File with HMRC as you do now.
Real screens from the worker app
What your subbies see on their own phone. Shown with demo data.

Every payment 
Your pay receipt 
CIS taken this year 
Your tax statement
What works today
CIS to the penny
Labour, materials and VAT, including the reverse charge.
Weekly pay run
Approve on your phone. Get a payment list for your bank.
Right to work
Check on your phone. Photos kept safe. Reminders before they expire.
Month end
Your CIS300 figures, and a spreadsheet for your accountant.
Worker app
Hours, pay and tax statements in 14 languages.
Owner in control
Owner, manager and worker roles. Filed months are locked.
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
CIS calculator
Type an invoice. See what to hold back and what to pay.
CIS deadlines
When each return is due and when HMRC must be paid.
Plain guides
CIS rates, verifying a subbie, paying subbies, right to work.
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.