CIS TAX ACCOUNTANTS

Advantax – Your CIS Tax Accountants in Ealing, Southall and Uxbridge

CIS TAX Accountants in Ealing, Southall and Uxbridge

CIS Tax Accountants in Southall

What is CIS

Welcome to Advantax Accountants, your trusted CIS Tax Accountant in Southall, UK. Are you a contractor or subcontractor under the Construction Industry Scheme (CIS)? We specialise in CIS tax, providing comprehensive services to ensure you meet your obligations while maximising your income. As your CIS Tax Accountant, we offer precise tax calculation, swift return filing, and strategic tax planning, crafted to your unique circumstances. We go beyond just filing your taxes; our experts navigate the complexities of CIS tax on your behalf, helping you understand the nuances and manage your finances better.

Trust Advantax Accountants to make CIS tax less taxing, and give your construction business the advantage it deserves. Your tax concerns are our priority. With a proven record of 15 years, we are the No. CIS Tax Accountants in Southall.

No. 1 CIS Tax Accountants in Uxbridge

Welcome to Advantax Accountants, the No. 1 CIS Tax Accountants in Uxbridge, UK. Our reputation has been built on delivering outstanding services to contractors and subcontractors operating under the Construction Industry Scheme (CIS). As seasoned CIS tax experts, we make it our business to stay updated with all the changes in the industry, and this in-depth knowledge allows us to offer personalised tax solutions for each of our clients. We provide accurate tax calculations, diligent return filing, and strategic tax planning tailored to your individual circumstances. Trust Advantax Accountants, the leading CIS Tax Accountants in Uxbridge, to take care of all your CIS tax needs. We are the tax experts who care about your financial success.

CIS Tax Accountants in Uxbridge
CIS Tax Ealing

CIS Accountant in Ealing

Construction businesses and subcontractors across Ealing rely on Advantax Accountants for expert Construction Industry Scheme (CIS) support that keeps them fully compliant while maximising tax efficiency. Whether you are a contractor managing monthly CIS returns or a subcontractor claiming CIS tax refunds, our experienced accountants provide accurate, timely, and hassle-free assistance. We handle CIS registration, subcontractor verification, monthly filings, tax deductions, and Self Assessment returns, helping you avoid costly HMRC penalties and improve cash flow. With personalised advice, transparent pricing, and secure online services, Advantax Accountants is the trusted CIS Accountant in Ealing, supporting construction professionals at every stage of their business journey.

UK CIS Tax Calculator 2025/26 & 2026/27

Construction Industry Scheme · UK

CIS Tax Calculator

Work out the CIS deduction on a payment, what the subcontractor actually receives, and the likely refund or balance at year end. Built on HMRC / GOV.UK rules for the 2025/26 and 2026/27 tax years.

1 · Your situation

I am the…
Subcontractor's CIS status

2 · The payment / invoice

£
£

Enter a labour amount greater than zero.

Subcontractor receives £0.00
Payment & deduction statementillustration

Annual reconciliation — sole trader / partner

CIS deductions are advance payments of Income Tax and Class 4 NIC. At year end your Self Assessment works out the real bill — often a refund for subcontractors. Enter your figures for the whole tax year.

Tax year
Where you live
£
£
£
£

Turnover must be greater than your expenses.

Estimated refund £0.00
Limited company? You don't reclaim CIS through Self Assessment. Companies offset CIS suffered against PAYE/NIC owed each month via the Employer Payment Summary (EPS), then any surplus against Corporation Tax or as a repayment. This estimator is for sole traders and partners.

RATES The three deduction rates

  • 0% — subcontractor holds Gross Payment Status (paid in full, settles tax via their own return).
  • 20% — subcontractor is registered for CIS (the standard rate).
  • 30% — subcontractor is not registered, or couldn't be verified by HMRC.

The deduction is taken only from the labour portion — never from genuine materials, plant hire or VAT. It's an advance payment toward the subcontractor's Income Tax and Class 4 National Insurance.

SCOPE What's in and out

Inside CIS: most construction work in the UK — site prep, building, alterations, repairs, demolition, installation of systems, decorating, and civil engineering.

Outside CIS: architecture & surveying, scaffolding hire (no labour), carpet fitting, delivery of materials, and work for a private householder paid directly. The deduction is also never taken from materials you can evidence.

VAT Domestic reverse charge

Unchanged since 1 March 2021. Between two VAT- and CIS-registered businesses (where the customer isn't the end user), the subcontractor doesn't charge VAT — the contractor accounts for it on their own return. The subcontractor receives no VAT cash, which affects cash flow. CIS is still calculated on the labour value excluding VAT.

NEW · 6 APR 2026 Mainstream changes

  • Nil returns reinstated. Contractors who pay no subcontractors in a tax month must file a nil return or pre-notify an inactivity period — otherwise a penalty applies.
  • Public bodies out of scope. Payments to local authorities and certain public bodies fall outside CIS entirely.
  • Tougher fraud powers. Where a business "knew or should have known" a payment was linked to fraud, HMRC can immediately cancel Gross Payment Status (5-year bar on reapplying) and charge a 30% penalty.
  • Deduction rates unchanged at 0% / 20% / 30%.

NEW Making Tax Digital for Income Tax

From April 2026, MTD for Income Tax begins phasing in for self-employed subcontractors. It applies first where qualifying income is over £50,000 (then £30,000 from April 2027 and £20,000 from April 2028), replacing the annual return with quarterly digital updates and a final declaration. Your CIS deductions are still credited against your bill.

DATES Deadlines & statements

  • A tax month runs 6th to 5th. Contractors file the monthly CIS return and pay deductions to HMRC by the 19th (22nd if paying electronically).
  • Subcontractors must get a payment & deduction statement within 14 days of the tax month end. Keep every one — you need them to reclaim.
  • Late monthly returns: £100 immediately, +£200 after 2 months, then the greater of £300 or 5% of deductions at 6 and 12 months.

For general guidance only — not tax advice. Figures are estimates based on HMRC / GOV.UK CIS rules and published 2025/26 and 2026/27 rates, bands and thresholds (Personal Allowance £12,570; Class 4 NIC 6% / 2%; Scottish bands per gov.scot). Income-tax thresholds are frozen across both years for England, Wales & NI. Class 2 NIC is no longer compulsory and is treated as paid where profits exceed the Small Profits Threshold. Always confirm your own position with HMRC or a qualified accountant. Verify the latest rules at gov.uk/cis.

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FAQs about Self-Assessment tax

In the construction industry if you are self-employed, you have to pay taxes in accordance with the Construction Industry Ordinance. In the CIS, the contractors take money from a subcontractor’s payments and submit it on to HM Revenue and Customs (HMRC). The deductions are considered as a down payment for the subcontractor’s taxes and social security. Entrepreneurs must register for the program. Subcontractors do not need to register.

CIS does not apply if the contractor works for:

  • School
  • Charity
  • Trust
  • own commercial property
  • Subcontractor’s property and the value of that work is less than £ 1,000.

The contractor usually pay Subcontractor directly, but they can be paid by third-party if they want to. But the contractor must pay them deduction statement within 14 days of the end of each tax month.

Contractors include property, construction companies, non-construction companies that have spent an average of £ 1 million or more on construction over the past three financial years, and some public entities that have spent an average of £ 1 million or more on construction per year on the Three-year period ended March 3.

Yes, you can register for CIS and request a gross payment by calling the CIS Helpline on 0300 200 3210.

If you are already registered as a self-employed person, registering as a subcontractor may only take a few days. If you need to register as a self-employed person, you will need to allow more time. Registering as a freelancer and obtaining a UTR number can take up to 10 days.

The simple answer is no, subcontractors do not have to register, but deductions are taken from their payments at a higher rate if they are not registered.

The standard rate for CIS tax is 20%. This rate can be increase if:

  • The contractor does not register with CIS
  • The HMRC does not verify you
  • Provide wrong information

If you like to get our CIS TAX Return services or know more about it, we invite you to contact us. We will inform you not only completely about our services, but also give you an idea how we can help you in this regard.

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