Help: your refund estimate

Plain answers for subbies. Short version: the number is a good guide, and HMRC pays the real refund after you file your tax return.

What does my number mean?

It's what you'd likely get back (green) or still owe (orange) for the tax year you picked. We take what contractors paid you, knock off your expenses, work out the tax and National Insurance on what's left, then compare that with the CIS that was taken off.

How close is it?

It's an estimate. It only knows the figures you put in. It doesn't see your HMRC record, student loan, other income you left out, or anything for limited companies. HMRC works out the real figure from your tax return.

Your figures stay on your phone. Nothing is sent or saved.

How do I get the money?

A CIS refund is only paid once you file a Self Assessment tax return for that year. For 2025-26 the online deadline is 31 January 2027. You can file it yourself on GOV.UK, or use an accountant.

Can S+ Money do it for me?

Not yet. We open in early 2027, once S+ Money is registered to file returns for people. If you'd like us to do it then, get on the list and we'll message you. It's free to join and there's nothing to pay today.

What happens after I join the list?

Tips for a better estimate

Contact

Email hello@splusmoney.co.uk.