๐Ÿงฑ For Builders & Construction Firms · CIS Specialists

Accountant for Builders & Construction Firms in Swansea

HMRC-registered accountants in Swansea for builders, bricklayers, groundworkers and construction firms, whether you are a CIS subcontractor, a contractor paying others, a sole trader or a limited company. CIS refunds and returns, materials, VAT reverse charge and payroll, all under one fixed fee.

CIS Refunds & ReturnsHMRC Registered AgentContractor & SubcontractorSole Trader & LtdFixed Fees

Accountant for Builders, UK

You Build the Job. We Will Handle the Books.

Based in Stanmore and working online with builders and construction firms in Swansea and across the UK, we handle both sides of CIS, reclaim subcontractor refunds and keep contractor returns filed on time. Building work sits at the heart of CIS, and your tax position depends on which side you are on. As a subcontractor, 20% comes off your pay at source and once your van, materials, tools and labour costs are claimed you are usually owed a refund. As a contractor paying others, you have to verify subcontractors, deduct the right amount and file monthly CIS returns, with penalties if you slip. Either way, materials and labour move fast and the paperwork rarely keeps up.

Your Tax Help Accountants works with builders, bricklayers, groundworkers and construction firms across the UK. For subcontractors we reclaim overpaid CIS tax and claim every cost. For contractors we run your monthly CIS returns, payroll and the VAT Domestic Reverse Charge. For limited companies we handle the full accounts and tax. One fixed fee, one accountant who understands construction, and your filings kept right and on time.

Whether tax is being deducted from you or you are deducting it from others, CIS has to be filed correctly or the penalties stack up. Materials, plant hire, van and mileage at 45p (55p for 2026/27) a mile, and labour are all part of the picture, and we keep every part of it straight.

What We Handle

A Complete Service for Builders, Fixed Fee

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CIS Refunds (Subcontractors)

On CIS, 20% is deducted before you see your pay. We file your return with every cost claimed, materials, plant, van and labour, and reclaim the overpaid tax.

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Monthly CIS Returns (Contractors)

Paying subcontractors? We verify them, calculate the right deductions, file your monthly CIS returns on time and issue deduction statements, so you avoid penalties.

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Materials, Plant & Van

Every allowable cost claimed: materials, plant and tool hire, van running costs or mileage, fuel, scaffolding, skips, workwear and the business use of your phone.

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Limited Company & Gross Status

We set up and run your construction company tax-efficiently, and help you apply for CIS gross payment status so tax is no longer deducted at source.

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VAT Reverse Charge & Payroll

VAT including the construction Domestic Reverse Charge, plus payroll for your employed staff, all filed correctly and on time.

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Late & Multi-Year Returns

Behind on CIS returns, refunds or accounts? We bring you fully up to date, reclaim what is owed and handle any HMRC penalties.

Subcontractor Owed a Refund, or a Contractor Behind on CIS Returns?

Subcontractors who have never claimed their costs are usually owed money back, often for several past years. Contractors who file late or miss monthly CIS returns face penalties that build up quickly, ยฃ100 a month per late return and more. Whichever side you are on, we get you straight: we reclaim subcontractor refunds and bring contractor CIS filings up to date, with penalties appealed where there is grounds.

Recent Client Outcome

How we got a small building firm's CIS returns and refund under control

A builder running as a sole trader had grown to the point where he was both a CIS subcontractor on some jobs and paying two subcontractors of his own on others. He had fallen behind on his monthly CIS returns, was unsure how much to deduct from the lads he paid, and had never properly claimed his own materials and plant.

We took over the lot. We registered him correctly as a contractor, verified his subcontractors, calculated the right deductions and filed the outstanding monthly returns. On his own subcontractor income we claimed his materials, plant hire, van, fuel and tools and reclaimed the overpaid CIS tax for the year and the prior year still in the window.

He came out with a refund on his own work, his contractor filings up to date and the monthly returns now handled for him for a fixed fee. He has since moved to a limited company on our advice, set up the right way from day one.

Why the Trade Chooses Us

Construction Tax, Done Right.

  • HMRC-registered agent practice that handles both sides of CIS.
  • Subcontractor refunds maximised and chased to your bank account.
  • Contractor CIS verification, deductions and monthly returns filed on time.
  • One accountant from start to finish, no call centre, no churn.
  • Materials, plant, van and labour costs all captured.
  • Sole trader, partnership or limited company, set up the right way.
  • VAT Domestic Reverse Charge and payroll handled correctly.
  • Late returns and refunds sorted, with penalties appealed where possible.
20%
Tax deducted from CIS subcontractors at source, usually more than owed once materials, plant and van are claimed
ยฃ100
HMRC's automatic penalty for a single late monthly CIS return as a contractor, climbing fast the longer it is left
ยฃ90,000
Turnover at which VAT registration is required, where the construction Domestic Reverse Charge applies

Builder & CIS Questions Answered

Frequently Asked Questions

Am I owed a CIS refund as a builder?
If you work as a subcontractor, very likely. Contractors deduct 20% from your pay before you receive it, before any expenses. Once we claim your materials, plant, van, fuel, tools and other costs, your real tax bill is usually well below what was deducted, and the difference comes back to you. We can often reclaim for previous years too.
I pay subcontractors. What do I have to do for CIS?
As a contractor you must register for CIS, verify each subcontractor with HMRC, deduct the right amount (usually 20%, or 30% if unverified, or nothing if they hold gross status), file a monthly CIS return and give each subcontractor a deduction statement. Late returns carry automatic penalties. We handle the verification, deductions, returns and statements for you so it is filed correctly and on time.
What expenses can a builder claim?
Materials, plant and tool hire, scaffolding and access equipment, skips and waste, van running costs or mileage at 45p (55p for 2026/27) a mile, fuel, hand and power tools, workwear and PPE, public liability insurance, the business use of your phone, accountancy fees and labour you pay out. We make sure materials and plant, which are often the largest costs, are fully captured.
Should my building business be a limited company?
Often, once profits grow. A limited company can be more tax-efficient than sole trader and lets you apply for CIS gross payment status so tax stops being deducted at source, which helps cash flow considerably on a building firm. We run the numbers for your situation and, if it makes sense, set the company up and run it for you.
How much does an accountant for builders cost?
A fixed fee, quoted up front after a free fifteen-minute call. For subcontractors the fee is very often covered by the larger refund we secure. For contractors and limited companies we offer fixed monthly packages covering CIS returns, bookkeeping, VAT, payroll and year-end accounts. Either way, a predictable fee and an accountant who knows construction.

Get Your CIS Straight, Keep More of the Job

Free fifteen-minute call. Fixed quote within twenty-four hours. We reclaim subcontractor refunds, run contractor CIS returns, and handle your accounts, VAT and payroll. Same accountant, start to finish.

Or email info@yourtaxhelp.co.uk, we typically respond within two business hours.

๐Ÿ“… Free consultation calls available weekdays 1pm to 3pm. Pick a slot that suits you.

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