Construction Industry Scheme Accountants
CIS handled properly, every month.
If you are a contractor or subcontractor operating under CIS, the monthly obligations do not stop — and HMRC's penalties for late or incorrect returns are automatic. A chartered firm takes the filings, verifications and reclaims off your plate. Fixed fee, FCMA-qualified, same-day replies.
- Monthly CIS returns filed on time, without you chasing anyone
- Subcontractor verification completed before the first payment goes out
- Correct deduction rates applied — standard, higher or gross, as appropriate
- CIS suffered amounts reclaimed efficiently to protect your cash flow
No long-term contract. If it is not working after three months, you leave with clean records and nothing owed.
Get a free CIS quote
Fixed pricing. Same-day reply.
What our clients say
★★★★★
Fees More Than Covered By Savings
"His fees are very reasonable and the money he has saved me more than covers them."
★★★★★
Above And Beyond, Always Available
"Niall and his team go above and beyond the duties to provide accounting services but also general advices. They are always available if you need anything while charging very competitive prices."
★★★★★
Always On The End Of The Phone
"They're always on the end of the phone to advise and assist and provide a top service for our accounting needs."
★★★★★
Confident In Our Financial Processes
"We always feel well-informed and confident about our financial processes and data. Highly recommend."
Sound familiar?
CIS admin piling up alongside everything else?
Running a construction business means the work never pauses for paperwork. But CIS does not pause either — HMRC expects a monthly return whether you made payments or not, and the penalties for missing one arrive quickly. Subcontractor verification, deduction rate queries and reclaim submissions all sit on top of that. For most contractors and subcontractors, it quietly becomes the thing that is always a month behind.
- Monthly CIS returns filed late because no one has time to prioritise them
- Unsure which deduction rate applies to a new subcontractor before paying them
- CIS deductions building up with no clear process for reclaiming what is owed
What handled looks like
With the right accountant running your CIS obligations, the monthly cadence becomes routine rather than a recurring stress. Verifications are done before payments go out, returns go in on time and reclaims are managed so you are not leaving money with HMRC longer than necessary.
- CIS returns submitted monthly, on schedule, without you needing to prompt anyone
- Every new subcontractor verified through HMRC before the first payment — correct rate confirmed
- CIS suffered amounts tracked and reclaimed through your Corporation Tax or payroll position
- Fixed monthly fee so the cost is known and budgeted, with no surprise bills
What construction and trade clients say
These are verbatim Google reviews from clients who use OD Accountants for ongoing compliance and tax work — the same chartered team that handles CIS.
Unlike my previous Accountants, Niall is far more hands-on, available for advice and able to care for me as an individual, rather than a faceless client. His fees are very reasonable and the money he has saved me more than covers them. If you need an Accountant who cares, Niall and OD Chartered Management Accountants are the way to go.
I've been there for years and Niall and his team go above and beyond the duties to provide accounting services but also general advices. They are always available if you need anything while charging very competitive prices. I could not recommend them enough.
Everything your CIS compliance requires
From initial registration and monthly filings through to reclaims and year-end reconciliation, the scope covers everything a contractor or subcontractor needs to stay compliant.
Monthly CIS Returns, Filed On Time
HMRC requires a CIS return every month, even in months where no payments were made to subcontractors. Returns are prepared and submitted on schedule, with the HMRC nil-return filed where required. You will not receive a late-filing penalty for an administrative oversight.
Included as standardSubcontractor Verification And Deduction Rates
Every new subcontractor must be verified with HMRC before the first payment, and the correct deduction rate — 20%, 30% or gross payment status — applied from the outset. That verification is handled before money moves. Subcontractors with gross payment status are checked and recorded so deductions are not taken unnecessarily.
Included as standardCIS Reclaims And Year-End Reconciliation
If you are a subcontractor with CIS deductions taken from payments, those amounts are offset against your tax liabilities — Corporation Tax for limited companies, or self-assessment for sole traders and partnerships. The reclaim is managed as part of your year-end work so you are not leaving an overpayment sitting with HMRC.
Included as standardClients who have been with us for years
Verified Google reviews from a range of SME clients — different sectors, different starting points, the same consistent experience reported across all of them.
Well-Informed And Confident About Financial Data
“The service from OD has been excellent, as has their advice. It's great to have access to a financial team who can guide us with such confidence and seamlessly integrate with our internal team. We always feel well-informed and confident about our financial processes and data. Highly recommend.”
Always Available, All Queries Resolved
“As a new start up and having never dealt with an accountant, Niall at OD Accountants has been very welcoming and supportive. All our prior queries and issues have been resolved, and he is always available to meet the needs of our team.”
Helped Set Up Everything, Even Tricky Situations
“Been with OD Accountants for over a year now. Niall and the team are brilliant. They helped me set up a company and get everything I needed in place to run my business. I'm a tricky client due to my 'digital nomad' status, but their advice…”
What separates a CIS-competent accountant from a general one
CIS has specific moving parts that a generalist firm often handles reactively. These are the reasons construction clients stay.
No Missed Monthly Deadlines
CIS returns are due by the 19th of every month following the tax month. That cadence is built into the workflow, not treated as a one-off. You will not discover a penalty from a month where a nil-return was quietly overlooked.
Verification Before The First Payment
Paying a subcontractor without completing HMRC verification first is a compliance failure with cost implications — you become liable for the deduction that should have been taken. Verification is completed as part of onboarding each new subcontractor, before any payment is made.
Cloud-Led Records, Auditable At Any Point
CIS deduction statements, verification records and monthly return submissions are maintained through cloud accounting software. If HMRC queries a payment period or a subcontractor disputes their deduction, the documentation is there and current. Nothing reconstructed at year-end.
Up and running on CIS in four steps
The process is straightforward. Most clients are onboarded within a week, with the first return handled by the team from that point on.
Book A Discovery Call
A short call to understand your current CIS setup — whether you are a contractor, subcontractor or both, which software you are on and whether any filings are outstanding. No preparation required on your part.
We Assess What Is Outstanding
If returns are behind or subcontractor records are incomplete, the catch-up work is scoped and quoted clearly before anything starts. There are no surprises on the bill.
We Take Over The Filings
From the next return date, submissions are handled by the team. Subcontractor verifications, monthly returns and deduction statements are managed within the agreed fee. You are notified when each return goes in.
CIS Runs Without You
Monthly returns go in on time without you tracking deadlines. Subcontractor queries are handled directly. At year-end, CIS suffered amounts are reconciled and any reclaim is claimed back. Which is, frankly, the way it should be.
“Niall and his team are supportive, clear and directional accountants who have supported our small business staff up. They're always on the end of the phone to advise and assist and provide a top service for our accounting needs. Plus they're just nice people which helps too!!”
Common questions about CIS accounting
Do you understand how CIS works in practice — verification rates, nil-returns, gross payment status?
Yes. CIS has specific rules around subcontractor verification that determine whether you deduct at 20%, 30% or not at all, and those rates apply from the first payment. Monthly nil-returns are a common oversight for contractors who have had a quiet month — HMRC still expects the submission. Gross payment status changes the process entirely and needs to be checked before assuming no deduction is required.
What does CIS accounting cost and what is included?
Fees are fixed monthly and quoted based on the volume of subcontractors you pay and whether you are a contractor, subcontractor or both. The monthly CIS return, subcontractor verifications and deduction statements are included as standard. CIS reclaims are handled as part of the year-end or Corporation Tax engagement. Fees are described by existing clients as competitive, and the tax reclaimed typically more than covers the cost.
My CIS returns are behind. Can you catch up?
Yes. Late CIS returns are a reasonably common situation when a contractor has been managing filings themselves and has fallen behind, or has changed accountants mid-year. The outstanding returns are scoped, the catch-up work is quoted separately and clearly before starting, and any automatic penalties are assessed. HMRC's late-filing penalties for CIS are fixed amounts per return, so the cost of the catch-up is quantifiable from the outset.
Is there a long-term contract?
No. There is no lock-in. If you decide to move to another accountant, your records are provided in full and your HMRC authorisations are transferred without difficulty. The engagement runs month to month.
How are CIS deduction statements issued to subcontractors?
Subcontractors are entitled to a CIS deduction statement each month showing the gross payment, deduction made and net amount paid. These are produced and issued as part of the monthly return process. Subcontractors need these statements to reclaim deductions on their own tax returns, so they are not an optional extra.
Can CIS deductions be offset against PAYE and employer National Insurance?
Yes, if you are a subcontractor operating through a limited company with employees, CIS deductions suffered can be offset against PAYE, employee National Insurance and employer National Insurance due to HMRC through the payroll. This can materially improve cash flow by reducing the amount of PAYE that needs to be paid over each month. The offset is applied through the employer payment summary and tracked accurately to avoid underpayment.
Related services for construction businesses
CIS compliance off your plate, handled properly.
Monthly CIS returns, subcontractor verification and CIS reclaims managed by a chartered firm on a fixed monthly fee. No missed deadlines, no guesswork on deduction rates.