For UK builders and contractors

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

Subbo works out the CIS. It builds the weekly pay. It keeps your right to work checks. Made for the owner on site.

Free for 8 weeks. No card. No contract. The button opens your email app. Or write to harry@subboapp.com.

Or try the free CIS calculator

Three steps, every week

  1. Add your subbies

    Names, UTR and bank details in one place. Private details stay masked.

  2. Approve the week

    Tap to approve hours or day rates. Subbo works out the CIS for each subbie.

  3. Pay from your own bank

    Download the payment list. Pay as you do now. Subbo never touches the money.

See how it works, step by step

What works today

Not live yet

Subbo does not file your CIS300 or check your subbies with HMRC yet. You do both on HMRC's own service, as you do now, using Subbo's figures. We will say when that changes.

Free help, no sign-up

Your money stays with you

Subbo is software only. It never holds or moves your money. You pay your workers and HMRC from your own bank. You stay responsible for your tax and checks. Subbo helps you get them right.

Built for firms paying about 5 to 50 subbies a week, and their accountants.

Want to try it?

We are looking for 3 to 5 firms for a free 8-week trial. 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. Or write to harry@subboapp.com.