Start your CIS tax return today

If you’re a sub-contractor under CIS, you’ll need to tell HMRC what you earned by completing a tax return each year.

Filling in a CIS tax return can be tricky and time consuming and not using an expert can cost you money. We’ll make sure you are able to claim back every penny that you are entitled to.

It’s important you submit your tax return on time, with no mistakes. If you don’t, the penalties could end up costing you hundreds of pounds.

You can find out more about CIS Tax Rebates with this handy online CIS Tax Refund guide.

Start my CIS tax rebate claim today...
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About our CIS tax return services

We’ve been helping CIS sub-contractors for a long time and our team of highly skilled experts are there to make the process easy, fast, and secure.

You can be confident that your affairs will be dealt with professionally from start to finish.

It’s easy to bury your head in the sand. If you have forgotten to submit your tax return for a few years, we can help you get yourself back on track. In some cases, you may even find that you are entitled to a backdated CIS tax refund.

You can use our free CIS tax rebate calculator to estimate what your tax refund could be.

CIS tax return service process

We’ve teamed up with IN-SYNC tax to provide you with the market leading CIS tax return service.

IN-SYNC Tax secures an average CIS tax rebate of £2300 and the service includes:

  • Completing and submitting your CIS tax return.
  • Tax calculation explaining your tax position.
  • Online submission of your tax return to HMRC.
  • Checking any CIS rebate issued by HMRC.
  • Express 24 hour CIS rebate advance option available.

As CIS tax return specialists IN-SYNC Tax offers great value and ensures your tax return is submitted accurately and on time.

CIS tax return fees:

We charge a fixed fee of £325 including VAT.

There is no upfront fee with payment taken from your tax rebate.

Get your money in 24 hours if you qualify.

Additional CIS tax advice and tax planning support is available all year giving you everything you need in one place.

More IN-SYNC benefits


IN-SYNC consistently delivers CIS rebates in excess of £2,000


IN-SYNC works on a no win, no charge basis

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We will pay your rebate to your chosen bank account the same day

CIS Tax Return Calculator

Find out how much you can claim...

We will give you an estimation of how much you can claim back.

Tax Rebate Calculator
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