Chartered Certified Accountants

Accounting for CIS Contractors & Subcontractors in London

At S & B Accountants, we specialise in supporting both Contractors and Subcontractors under the UK’s Construction Industry Scheme (CIS). We know the paperwork and compliance can be overwhelming—so let us take care of your CIS administration while you focus on running your business.

Best in business

S and B Accountants

Endorsed by Wunderlust London

We are experience

S and B Accountants

We have years of experience

Good Reviewed

S and B Accountants

We have earned positive Review

ICPA Certified

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We are certified by ICPA

Hassle-Free CIS Accounting
to Let You Focus on Building

S and B Accountants

We are experienced CIS accountants ready to help both contractors and subcontractors to meet the complex CIS Tax regulations.

We understand that CIS administration can be a burden for contractors who just want to run their business without the bureaucracy, so let us help you do so by us taking care of all the paperwork for you.

Subcontractors can be at ease and never worry about paying the 30% higher tax deduction as we will register you as a subcontractor to the HMRC if you haven’t already, always makes sure you comply with CIS regulations, and of course, handle and submit all your CIS paperwork on-time.
We can assure you that you will never miss a deadline to submit CIS paperwork with our CIS accounting service and are keen to represent you in any HMRC correspondence and investigations.

Why Choose Us for CIS Accounting?

S and B Accountants

CIS Expertise

Whether you’re a contractor or subcontractor, we manage your CIS needs with precision and clarity.

S and B Accountants

Reduce Tax Exposure

Subcontractors avoid unnecessary 30% tax deductions—we’ll register and manage your status with HMRC.

S and B Accountants

Full Compliance

We ensure all CIS paperwork is completed and submitted on time, preventing costly missed deadlines.

S and B Accountants

Reliable HMRC Support

If HMRC inquiries or investigations arise, we’re ready to represent you and provide support.

Book Your Free Consultation Today!

S and B Accountants

Our CIS Support Services

We provide end-to-end accounting solutions tailored to the construction industry:

CIS Registration & Admin

Register your business as a subcontractor with HMRC and handle all CIS-related filings.

CIS Compliance Monitoring

Stay updated with changes in CIS regulations to ensure full HMRC compliance.

On-Time CIS Submission

We guarantee timely submission of your CIS invoices and deductions—minimising risk and disruption.

Representation & HMRC Liaison

In the event of HMRC correspondence or investigations, we’ll manage all communication and representation on your behalf.

How We Support Contractors & Subcontractors

Your Role

How We Help You

Contractors

We verify subcontractors, calculate and submit your CIS deductions accurately, and ensure compliance—all handled for you.

Subcontractors

We help register your CIS status, prevent tax overpayment, and manage all relevant filings—giving you peace of mind.

Advantages of Partnering with Us

S and B Accountants
  • Less Stress, More Focus – Free up time to manage your construction projects rather than paperwork.

  • Maintain Cash Flow – Correct CIS deductions and timely submissions can help preserve your working capital.

  • Stay Protected from Penalties – We keep everything compliant and up-to-date.

  • Professional Support When Needed – From compliance to correspondence, you’re covered.

Take your small business to the next level with us.

S and B Accountants

Contact Us ASAP! To hire our expert small business accountants to overcome your startup challenges effectively. Take your small business to the next level with us.

S and B Accountants