CIS accountant services for UK Contractors

CIS Accountant Services
for Contractors and Subcontractors

Working under the Construction Industry Scheme can make tax, deductions and record keeping more complicated than they need to be. Findlay Todd provides specialist CIS accounting support for contractors and subcontractors, helping you stay organised, compliant and confident in your finances.

From CIS returns and deduction records to bookkeeping, tax returns and wider accountancy support, our team gives you clear, practical advice without unnecessary jargon.

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If you work in construction as a contractor or subcontractor, you’ll know that managing CIS correctly is essential to staying compliant with HMRC. The Construction Industry Scheme sets out how tax must be deducted, verified, and reported. Mistakes can lead to penalties and cash-flow disruption, so professional management is vital.

Need help with your CIS Accounting?

Findlay Todd Accountants provides specialist CIS support to contractors and subcontractors across Newcastle and the North East. We take care of registrations, subcontractor verifications, monthly CIS300 returns, and gross payment status applications, ensuring every submission is accurate and on time. With our help, your business remains compliant, your records stay audit-ready, and you can focus on delivering projects with confidence.

What are our CIS Accounting Services?

A CIS accountant specialises in managing the Construction Industry Scheme and understanding its detailed requirements. They ensure the right deductions are made, subcontractors are verified correctly, and all returns and records meet HMRC’s strict standards. At Findlay Todd, our team combines construction-sector knowledge with accounting expertise, so clients get practical guidance that fits how they actually work, on-site or in the office.

How our CIS Accountant Services Work

We begin by confirming whether you need to register as a contractor, subcontractor, or both. Next, we verify subcontractors with HMRC to establish the correct deduction rate (gross, 20% or 30%) and set up a simple process for collecting invoices and CIS statements. Each month we calculate deductions, prepare and submit the CIS300 return, issue payment & deduction statements to subcontractors, and reconcile everything to your accounting system. If you’re a subcontractor, we also help you reclaim over-deducted CIS through Self Assessment or Corporation Tax, improving cash flow fast.

What is included in our CIS Accountant Services

  • CIS registration and HMRC agent authorisation
  • HMRC verification of subcontractors and rate management (gross/20%/30%)
  • Monthly CIS300 returns and digital statements for each subcontractor
  • Set-up of easy document collection
  • PAYE/CIS reconciliation and journals into your accounts
  • Support with gross payment status applications and renewals
  • Help reclaiming over-deducted tax for subcontractors

What Happens if You Haven't Paid Any Subcontractors?

From 6 April 2026, mainstream CIS contractors who have not paid subcontractors during a reporting period must generally submit a nil return or notify HMRC of inactivity where applicable. Missing the required notification or return can result in penalties.
We can help you understand your CIS reporting responsibilities and keep the relevant records up to date.

Working as a construction subcontractor? Find out more about our specialist accounting for construction subcontractors and how we can support your wider accounting and tax requirements.

Construction Industry Scheme

CIS Accountants for Contractors

If your business pays subcontractors for construction work, managing the Construction Industry Scheme can involve regular HMRC reporting, subcontractor verification, deductions and detailed record keeping.
Our CIS accountants support contractors with registration, monthly returns, payment and deduction statements, and maintaining accurate CIS records.
We can also help coordinate CIS with your wider bookkeeping, payroll and accounting responsibilities, so your records remain organised throughout the year.
Whether you are taking on subcontractors for the first time or managing an established construction business, we can help you understand and meet your CIS responsibilities.

Construction Industry Scheme

CIS Accountants for Subcontractors

Working as a subcontractor under CIS means deductions may be taken from your payments before you receive them. Keeping track of those deductions is important when preparing your accounts and tax returns.
At Findlay Todd, we help subcontractors maintain accurate records, understand their CIS deductions and make sure the relevant amounts are accounted for correctly.
We support self-employed subcontractors and limited companies, including those working for multiple contractors or managing different projects throughout the year.
If you need help preparing your tax return, reviewing deductions or organising your bookkeeping, our team can explain the available options and provide ongoing accounting support.

Construction Industry Scheme

Do I Need CIS Accountant Services?

If you work as a contractor or subcontractor under the Construction Industry Scheme, a CIS accountant can help you keep accurate records, account for deductions correctly and make sure your tax returns reflect the payments and deductions reported throughout the year. Professional support can also make it easier to stay on top of deadlines, bookkeeping and wider tax responsibilities as your business grows.

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Construction Industry Scheme

How Much Does a CIS Accountant Cost?

The cost of CIS accounting depends on the support you need. A subcontractor requiring help with bookkeeping and an annual tax return may have different requirements from a contractor managing monthly returns and payments to several subcontractors.
At Findlay Todd, we provide clear, agreed pricing based on your circumstances and the work involved. We will explain what is included before you decide to proceed.
If you are unsure what level of support you need, contact our team for an initial consultation.

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Why Choose Findlay Todd Accountants

Why UK Clients Stay With Us

We don’t just work with numbers, we work with people. That’s why our clients trust us year after year. We build lasting relationships through consistent, high-quality support.

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HuntA
28. October, 2026
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Excellent company, used for 8 years now, very helpful
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Hayley Scott
23. October, 2026
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I have used Findlay Todd Accountancy for 10 years now and would recommend. It has made being self-employed easier for me. Thank you to the team.
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C Mac
15. October, 2026
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Amazing team, cannot recommend them enough
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Ben
5. October, 2026
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Dan has Been my accountant for the previous 10 years, him and his team are the most professional and helpful ever and always make everything clear, I would recommend them to anybody that wants a professional and swift service I wouldn’t go anywhere else.
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Jakk McCaffery
29. September, 2026
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Helpful and friendly always. I appreciate how helpful the team are. For the many questions I usually bombard them with, they’re always straight back to me keeping me in the know. I’m not massively clued up on these things and it gives me peace of mind knowing I don’t need to be as I’m in safe hands. Dan and all of the team, top to bottom are running a steady ship here and would reccommend to anyone, they make a potentially stressful experience effortless. Thanks for all the help, it is appreciated every single time.
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Peter Scott
23. September, 2026
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Fantastic service, always on hand to help , 5 Star Service 🌟
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Will Aitchison
1. September, 2026
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Great experinece working with Findlay Todd for the first time on my business accounts. Would highly recommend to anyone thinking about using them.
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Jade Hamilton
21. August, 2026
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I have been with Findlay Todd Accountants since opening my limited company in 2023 and they have been brilliant. Efficient, professional and great at their jobs. Dan is very approachable and will answer any of my daft questions haha! His team are all wonderful and I highly recommend them to everyone. Stress and hassle free always. Thanks again xxx
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Peter Todd
14. August, 2026
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First time going through the process and the Team at Findlay Todd talked me through every step of the way and made sure I understood exactly what was going on and offered great advice. 100% recommend

CIS accountant services for UK contractors FAQs

Let Us Answer Your Questions About CIS Accounting

Yes, contractors must register before they pay subcontractors. Subcontractors should also register; if not, contractors may have to deduct 30% instead of the standard 20%. We’ll check your position and complete the registrations.

A CIS accountant helps contractors and subcontractors manage their responsibilities under the Construction Industry Scheme. At Findlay Todd, we can support you with CIS registration, subcontractor verification, monthly returns, deduction records, tax returns and wider accounting requirements.

HMRC applies three rates: 0% (gross payment status), 20% (registered subcontractor), and 30% (unregistered or cannot be verified). We verify each subcontractor so you deduct the correct amount and avoid penalties.

The monthly CIS300 is due by the 19th of the following month (e.g., April’s deductions report by 19 May). Late filing can trigger penalties and interest. We file on time and keep proof of submission.

Yes. We can provide ongoing CIS accounting support rather than only helping at year end. This can include maintaining records, preparing returns and helping you stay on top of your wider bookkeeping and tax responsibilities.

You do not have to use a CIS accountant, but professional support can help you keep accurate records, understand the deductions made from your payments and make sure they are correctly accounted for when completing your tax return.

Yes. We help subcontractors prepare their Self Assessment tax returns, taking account of CIS deductions, income and relevant business expenses. We will review your records and explain your tax position clearly before your return is submitted.

You can apply if your tax affairs are up to date and your business meets turnover and compliance tests. GPS improves cash flow because contractors don’t deduct CIS from your payments. We’ll assess eligibility and manage the application.

Sole traders claim it through Self Assessment; companies offset through PAYE/Corporation Tax or claim a repayment. We prepare the return and supporting schedules so HMRC processes it quickly.

Keep subcontractor details and verifications, invoices, deduction totals, payment statements, and proof of filings. We set up a tidy digital trail so you’re audit-ready.

Need Help With CIS Accounting?

Whether you are a contractor responsible for CIS returns or a subcontractor looking for help with tax and deductions, Findlay Todd can support you.
Tell us a little about your construction business and what you need help with. We will explain how our accounting services could work for you and provide a clear proposal.

Related Accountancy Services

More Ways We Can Support You

Your accounting needs rarely sit in isolation. Alongside this service, Findlay Todd can support you with a wider range of accountancy services to help keep your finances organised, compliant and easier to manage.

Whether you also need help with bookkeeping, payroll, VAT, tax returns, or year-end accounts, our team can provide joined-up support tailored to your circumstances.

Tax Returns

We prepare accurate tax returns for contractors and subcontractors, making sure your CIS deductions, income and allowable expenses are properly accounted for.

Bookkeeping

Keep your CIS records, income and business expenses organised throughout the year, making tax returns and financial reporting much easier to manage.

Payroll

If you employ staff or subcontractors, we can provide reliable payroll support alongside your CIS accounting, helping you keep payments and reporting on track.