Privacy

This calculator does not require an account and does not save your CIS calculation inputs to a customer record or database. The figures you type are used in your browser to produce the result shown on screen.

Analytics

We use Vercel Analytics to understand aggregate site usage, such as page visits and interactions. This helps us improve the utility and spot whether pages are being used successfully.

Links to Klamic and other sites

Links to Klamic may contain UTM campaign parameters so we can tell that a visit came from this calculator. Following a link takes you to the privacy practices of the destination site. Links to GOV.UK and our related VAT calculator work in the same way as ordinary external links.

No saved calculations

There are no customer accounts, saved CIS records, subcontractor lists or HMRC credentials on this microsite.