Managing finances in the construction industry is rarely straightforward. Between chasing invoices, sourcing materials, and delivering projects on time, most contractors find that keeping up with HMRC’s Construction Industry Scheme (CIS) falls to the bottom of the to-do list. That’s where an experienced CIS accountant makes all the difference. At Milton & Crown Certified Accountants Ltd, we work with contractors and businesses across the whole of England—from electricians and plumbers to plasterers and carpenters—helping them navigate CIS obligations with confidence. Our team provides clear, jargon-free guidance and hands-on support, so nothing slips through the cracks.
This guide explains what CIS is, why specialist accounting support matters, and how Milton & Crown can help your business stay compliant and financially healthy.
The Construction Industry Scheme is a set of rules introduced by HMRC to regulate tax payments within the construction sector. Under CIS, contractors are required to deduct money from a subcontractor’s payments and pass it directly to HMRC. These deductions count as advance payments towards the subcontractor’s tax and National Insurance contributions.
There are two key parties in every CIS arrangement:
Both parties have distinct obligations, and getting them wrong can lead to penalties, interest charges, or missed refund opportunities.
CIS rules are detailed, and the margin for error is small. A dedicated CIS accountant does far more than file paperwork—they ensure you’re registered correctly, deducting at the right rate, and claiming back everything you’re owed.
Here’s what can go wrong without specialist support:
A knowledgeable CIS accountant keeps all of these in check.
Milton & Crown Certified Accountants Ltd offers a full range of CIS-related services for contractors and subcontractors across England. Our approach is practical, proactive, and tailored to each client’s situation.
We handle the registration process for both contractors and subcontractors, ensuring you’re set up correctly with HMRC from the start. We also manage the subcontractor verification process on your behalf, so you always deduct at the right rate.
Every contractor must submit a monthly CIS return to HMRC by the 19th of the following tax month. Milton & Crown prepares and files these returns accurately and on time, including nil returns where required—keeping you penalty-free throughout the year.
Subcontractors often have too much tax deducted across the year. Our team reviews your deductions carefully and claims back any overpaid tax through HMRC, putting money back in your pocket that you might otherwise miss.
Most self-employed subcontractors are required to file a Self-Assessment tax return each year. As your CIS accountant, Milton & Crown handles this on your behalf—accurately reporting income, allowable expenses, and CIS deductions to calculate the correct tax liability.
For contractors who employ workers directly and use subcontractors, managing payroll alongside CIS deductions can become complex. Milton & Crown handles both, ensuring PAYE and CIS obligations are met simultaneously.
Accurate records are the foundation of CIS compliance. Our bookkeeping service keeps your financial records clean and current, making returns straightforward and audits stress-free.
Our CIS accounting services cover a wide range of trades and construction businesses across England, including:
Whether you’re a sole trader just starting out or an established limited company managing multiple subcontractors, Milton & Crown has the experience to support you.
Milton & Crown Certified Accountants Ltd has built a strong reputation for delivering reliable, affordable accounting services to small and medium-sized businesses across England. Clients choose us because we make accounting simple—and keep it that way.
Here’s what sets us apart:
As one client put it: “Milton & Crown have always been knowledgeable, reliable and proactive in their service.”
A CIS accountant specialises in managing Construction Industry Scheme obligations for contractors and subcontractors. Their responsibilities include registering clients with HMRC, filing monthly CIS returns, calculating correct deduction rates, and claiming tax refunds. They help businesses avoid HMRC penalties and stay fully compliant.
Any business that pays subcontractors for construction work in the UK must register as a CIS contractor with HMRC. Subcontractors who carry out construction work for contractors also need to register to avoid paying the higher unregistered deduction rate of 30%.
CIS deduction rates depend on the subcontractor’s registration status. Registered subcontractors are deducted at 20%, unregistered subcontractors at 30%, and those with gross payment status at 0%. An experienced CIS accountant ensures the correct rate is applied every time.
Yes. Many subcontractors overpay tax through CIS deductions during the year and are entitled to a refund from HMRC. Milton & Crown reviews your deductions and submits refund claims on your behalf, recovering any money owed to you.
HMRC issues automatic penalties for late CIS returns. A return that is one day late incurs a £100 penalty. Further delays lead to higher charges. Milton & Crown manages all monthly returns and provides deadline reminders to ensure you remain compliant.
Yes. Milton & Crown Certified Accountants Ltd provides CIS accounting services to contractors and businesses across the whole of England, not just the local Milton Keynes area.
CIS compliance doesn’t have to be a burden. With the right CIS accountant in your corner, you can meet every obligation, reclaim overpaid tax, and get on with running your business.
Milton & Crown Certified Accountants Ltd serves contractors and businesses across the whole of England. To find out how we can help, call us on 01908 766 386 to book a free, no-obligation consultation.
