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CIS Tax Return & Refund

If you are a subcontractor under the Construction Industry Scheme (CIS) and have paid too much tax or national insurance through CIS deductions, dns Accountants can help you claim your CIS tax refund from HMRC quickly and accurately.

Our expert team will support you throughout the process, from preparing and filing your CIS tax returns to ensuring all eligible expenses are claimed, so you receive the maximum refund you are entitled to.

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Specialist accountants for CIS refunds

dns accountants can help you get a refund of your construction industry scheme (CIS) deductions if you’ve paid too much tax or national insurance. Hire our CIS accountants to claim your tax refund.

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What is a CIS tax refund?

Contractors deduct money from your payments and send it directly to HMRC as an advance against your yearly tax bill. If the amount deducted exceeds your actual tax liability, after allowable business expenses and personal allowances are taken into account, you can claim the difference back as a CIS refund.

To do this, you must complete and submit a Self-Assessment tax return that reconciles your income, deductions, and allowable costs.

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When will the CIS refund be due?

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  • CIS refunds are usually due when tax has been deducted under the Construction Industry Scheme, but your actual income is lower after accounting for allowable expenses and personal allowances.
  • You may receive a refund because business-related trade expenses reduce your taxable profit.
  • HMRC may request evidence to prove that any claimed expenses were genuinely incurred.
  • All expenses must be wholly and exclusively for business purposes.
  • Do not invent expenses or include personal costs to reduce your taxable profit — this is unlawful.
  • Providing false information to HMRC can lead to severe penalties, including fines and potential prosecution.
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Why uou might get a CIS refund

A CIS refund typically arises when

Your actual taxable profit is lower than the CIS deductions made.
You’ve legitimately claimed business expenses that reduce your taxable income.
Personal allowances mean your tax liability is less than the CIS deducted.

HMRC requires evidence of business expenses, including receipts and supporting documentation, so using professional accountants helps ensure accuracy and compliance.

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Get higher refunds in less time and for a price that will not hit your pockets. Contact dns accountants for the CIS refund to avail bunch of benefits!
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How dns accountants can help

At dns Accountants, we provide specialist support for subcontractors, offering:

  • Preparation and submission of accurate CIS tax returns
  • Identification of all allowable business expenses
  • Timely filing of your Self-Assessment return to HMRC
  • Expert advice to maximise your CIS refund with full compliance

Our service gives you peace of mind, saving you time and helping you avoid costly mistakes.

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Why choose dns accountants?

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Specialist CIS knowledge

Customised support for subcontractor tax returns and CIS refunds

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Support wherever you are in the UK

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Clear communication

We explain HMRC requirements clearly

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Comprehensive tax support

Covering both CIS and property tax needs

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Why choose our services

Our expert contractor team is always available to answer your questions and give you advise on your CIS tax returns and claiming the CIS refund you are entitled to.

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We're proud to be amongst the best accountants in the UK, demonstrated by the number of awards we've won over the years. We're also a top-100 accounting firm.

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Frequently Asked Questions

Not always. You only get a refund if the tax deducted under CIS is more than what you actually owe after counting your income, expenses, and personal allowance. If too much tax has been taken, HMRC gives the extra back.

To claim your refund, you need to file a Self-Assessment tax return. HMRC checks your income, CIS deductions, and expenses. If you’ve overpaid tax, they will send the refund directly to your bank account.

Most CIS refunds are paid within 2 to 8 weeks after filing your tax return. It can take longer if HMRC needs more information or decides to check your expenses.

The contractor deducts CIS tax from your payments and sends it straight to HMRC. HMRC holds this money until you file your tax return, which decides whether you owe more tax or are due a refund.


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