🏗️ CIS Tax Specialist · Hounslow TW3-TW5

CIS Accountant in Hounslow, Subcontractor & Contractor Specialists

HMRC-registered CIS specialists serving Hounslow subcontractors, contractors and construction trades across TW3, TW4 and TW5. Same-day refund filing, monthly contractor returns and gross payment status applications. Fixed monthly fees.

HMRC Registered AgentServing Hounslow TW3-TW5Same-Day CIS Refund FilingMonthly Returns HandledFixed Monthly Fees
Free Tool · 2025/26 Tax Year

See what HMRC owes you — in 60 seconds

20% is deducted from every CIS invoice before your expenses are counted. Most subcontractors are owed a refund. Three numbers, instant estimate — no signup.

Calculate My CIS Refund →

CIS Accountant in Hounslow

CIS Tax Made Simple for Hounslow Construction Workers

Hounslow lives in Heathrow's shadow, and its construction economy shows it. Hotel builds and refurbishments along the Bath Road, logistics and cargo sheds across the western corridor, the High Street regeneration blocks, and a deep renovation and extension economy across the borough's Victorian and 1930s stock keep thousands of trades busy. The Construction Industry Scheme is the single most common reason Hounslow subcontractors overpay tax: 20 per cent comes off every invoice, 30 per cent if you are not verified, before a single expense is counted. By April those deductions usually overshoot the real tax bill, and a properly prepared Self-Assessment typically unlocks £1,500 to £5,500.

The Hounslow pattern we see most is agency stacking: a subbie holding three or four payment streams at once between airport-corridor agencies and main contractors, each deducting CIS separately, none of them seeing the whole picture. Your Tax Help Accountants, HMRC-registered, pulls every deduction statement together, captures van miles between Heathrow jobs and town sites, files refunds same-day from 6 April, runs CIS300 monthly returns for local contractors, and handles verification so nobody sits on the 30 per cent rate. Fixed monthly fees, fully online, and we are 10 miles up the road in Stanmore.

💡 As an HMRC-registered agent, we deal with HMRC directly on your behalf, filing monthly returns, processing refund claims and handling verifications. Same-day filing available from 6 April for the fastest refund.

What We Handle

Complete CIS Service for Hounslow Subcontractors & Contractors

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Same-Day CIS Refund Filing

Self-Assessment filed within 24-48 hours of 6 April with every legitimate expense captured. HMRC refunds typically arrive 4-6 weeks later. Average refund £1,500-£5,000.

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Monthly Contractor Returns (CIS300)

Full monthly CIS300 returns filed direct to HMRC for Hounslow contractors engaging subcontractors. Verification handled, payment statements produced, penalties avoided.

Subcontractor Verification

We verify your Hounslow subcontractors with HMRC before you pay them, ensuring the correct deduction rate (gross, 20 per cent or 30 per cent) is applied from day one.

Gross Payment Status Applications

For established Hounslow subcontractors meeting the turnover, compliance and business tests, we prepare and submit gross payment status applications so you receive payments without deduction.

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Receipt Capture & Bookkeeping

Simple receipt-capture app for tools, fuel, materials, PPE and CSCS card renewals. Every legitimate expense captured throughout the year, not scrambled together at the deadline.

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Late Filing & Penalty Mitigation

Behind on Self-Assessment or CIS returns? We bring you up to date and engage with HMRC about penalties, requesting reductions where there's a reasonable excuse.

Owed CIS Refund From a Previous Year?

You can claim CIS refunds for up to four prior tax years. Many Hounslow subcontractors are owed several thousand pounds across multiple years. Book a free call and we will scope it out.

📅 Get Your Free Backdated CIS Review

Real Client Story

How we got a Hounslow CIS subcontractor £5,500 back

Client H is an electrician from Hounslow working hotel refurbishments along the Bath Road through two agencies, with weekend domestic work on top. Three payment streams, three sets of CIS deductions, and a previous accountant who had only ever seen one of them.

We gathered statements from every agency, reconciled them against his bank, captured his van miles between sites, testing kit and calibration costs, 18th Edition course renewal, tools, PPE and phone, and filed within 48 hours of 6 April.

Outcome: £3,900 refund, against the £900 he expected, plus a fix to his verification with the second agency that had been deducting 30 per cent.

Why Your Tax Help Accountants

Your Local CIS Specialists.

  • HMRC-registered CIS agent serving Hounslow online
  • Same-day refund filing from 6 April every year
  • Monthly contractor returns (CIS300) handled cleanly
  • Subcontractor verification before you pay
  • Gross payment status applications for qualifying trades
  • Receipt-capture app provided as part of the service
  • Fixed monthly fees, no per-return charges, no surprises
4.5★
Google Rating
Same Day
CIS refund filing
£1.5k-£5k
Typical CIS refund
Fixed Fee
No surprise bills

CIS Tax Questions Answered

Frequently Asked CIS Questions

How much CIS tax can I get back as a Hounslow subcontractor?
Typical CIS refunds for Hounslow subcontractors range from £1,500 to £5,000 depending on your gross earnings, allowable expenses (van, fuel, tools, PPE, materials, mobile, training) and how much was deducted under CIS during the year. Higher earners with substantial expenses and good record-keeping often see refunds at the upper end. We capture every legitimate expense and file for the maximum legitimate refund.
How quickly can you file my CIS refund after 6 April?
We file within 24-48 hours of the 6 April tax year end for clients who have their records ready. HMRC then typically processes the refund within 4-6 weeks. Filing in April rather than January means your refund lands months earlier. For a £5,500 refund that's a meaningful cash flow benefit.
I'm starting with a new main contractor in Hounslow. Anything to sort before my first payment?
Get verified with HMRC before your first invoice so deductions start at 20 per cent rather than the 30 per cent emergency rate, keep your CSCS card current at the right level for your trade (plus NPORS or CPCS if you operate plant), and keep every payment and deduction statement the contractor issues. Start a mileage log on day one. Five minutes of setup is routinely worth thousands at refund time.
What CIS expenses can I claim as a Hounslow subcontractor?
All genuine business expenses: van and fuel costs (HMRC simplified mileage rate of 45p per mile for the first 10,000 business miles or actual costs plus capital allowances), tools and equipment, PPE and work clothing, CSCS card renewal, training certifications, materials you purchase yourself, mobile phone (business proportion), accountancy fees, and a reasonable home-office proportion.
I'm a Hounslow contractor paying subcontractors. What CIS returns do I need to file?
Monthly CIS300 returns are due by the 19th of each month covering the previous month's payments to subcontractors. The return shows total payments, deductions taken and any reasonable expenses. You also need to verify each subcontractor with HMRC before you pay them to confirm the correct deduction rate. We handle the verification, monthly returns and payment statements as part of our fixed monthly service.
How do I apply for gross payment status as a Hounslow subcontractor?
Gross payment status lets you receive CIS payments without any deduction, improving cash flow substantially. You need to meet three tests: turnover above £30,000 per partner/director (or £100,000 for partnerships/companies), a compliance test (clean Self-Assessment and PAYE record for the previous 12 months), and a business test (genuine construction business with proper bank account, premises and equipment). We prepare and submit the application and handle any HMRC queries.
I work through several agencies around Heathrow. Does that complicate my CIS refund?
It complicates the paperwork, not the refund. Each agency deducts CIS separately and issues its own statements, and HMRC expects one Self-Assessment pulling every stream together. Missing even one agency's deductions means leaving money unclaimed. We reconcile all statements against your bank, chase any missing ones from the agencies directly, and file one clean return.
How do I get started?
Book a free 15-minute call via our Calendly link or ring 07478 645331 (or our office line on 020 8050 4564). We work with Hounslow CIS clients fully online and we know TW3, TW4 and TW5 well. We tell you honestly what refund you should be expecting and what records we need from you. No obligation, no hard sell.

Get Your CIS Refund Filed Today

No obligation. No jargon. A straightforward conversation about your Hounslow CIS position, how much refund you should be expecting and how quickly we can get it filed.

Office: 020 8050 4564  |  Mobile: 07478 645331  |  info@yourtaxhelp.co.uk