Contact Us

If you are a subcontractor (and you’re not trading through a partnership or limited company) you are self-employed and therefore should be registered for self-assessment. Under self-assessment, you will need to send HM Revenue and Customs (HMRC) a self-assessment tax return each year. 

You should also consider registering for the Construction Industry Scheme (CIS) if you work for a contractor. Under CIS, the contractor will deduct 20% from your payments. If you don’t register for the CIS scheme, the contractor will deduct 30% from your payments instead. 

The contractor will pay over the deductions to HMRC and these amounts will count towards your tax and National Insurance bill. 

At the end of the tax year (6th April to the following 5th April), you should send HMRC a tax return which shows: 

  • the full amounts on your invoices as income (or from the statements you’ve had from the contractor) 
  • any deductions contractors have made in the ‘CIS deductions’ field 
  • any allowable business expenses you have incurred 

HMRC will work out your actual tax and National Insurance bill and then take off the amounts your contractor deducted from you. 

If you’re due a tax refund, HMRC will pay the money back. 

You are now able to submit your 2023/24 tax return and if you are due a refund it can be paid to you now. 

Date published 23 Apr 2021 | Last updated 23 Apr 2024

This article is intended to inform rather than advise and is based on legislation and practice at the time. Taxpayer’s circumstances do vary and if you feel that the information provided is beneficial it is important that you contact us before implementation. If you take, or do not take action as a result of reading this article, before receiving our written endorsement, we will accept no responsibility for any financial loss incurred.

Andy Gibbs, ATT, CTA

Andy is a qualified Chartered Tax Adviser (CTA), holds the STEP Advanced Certificate in Trust and Estate Accounting, and has dealt with both tax compliance and tax advisory projects across a range of industry sectors. He joined us from one of the big four accountancy firms where he looked after the affairs of high-net-worth individuals and private equity executives. Prior to this he worked at a local regional practice where he dealt with the affairs of owner managed businesses and private individuals. In January 2024 Andy was promoted from Head of Group Technical, to Director of Services, leading two of our Group companies which provide payroll and tax consulting support to our network of accountants. Andy also manages a highly qualified and experienced team providing technical support and offering practical solutions in relation to the accounting, tax and practice needs of TaxAssist franchisees and staff.

Choose the right accounting firm for you

Running your own business can be challenging so why not let TaxAssist Accountants manage your tax, accounting, bookkeeping and payroll needs? If you are not receiving the service you deserve from your accountant, then perhaps it’s time to make the switch?

Local business focus icon

Local business focus

We specialise in supporting independent businesses and work with 100,000 clients. Each TaxAssist Accountant runs their own business, and are passionate about supporting you.

Come and meet us icon

Come and meet us

We enjoy talking to business owners and self-employed professionals who are looking to get the most out of their accountant. You can visit us at any of our 409 locations, meet with us online through video call software, or talk to us by telephone.

Switching is simple icon

Switching is simple

Changing accountants is easier than you might think. There are no tax implications and you can switch at any time in the year and our team will guide you through the process for a smooth transition.

See how TaxAssist Accountants can help you with a free consultation

01223 414033

Or contact us