ACCOUNTANTS

Four workers in black coveralls walk through an industrial facility.

CIS handled properly, without the headaches.

We manage all CIS deductions, verifications, and monthly submissions — keeping your subcontractors compliant and your business protected from penalties.

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CIS (Construction Industry Scheme)

Full CIS compliance, every month.

VAT can feel complicated — changing rules, digital submission requirements, and strict deadlines.
We take care of everything: reviewing your records, preparing accurate returns, and submitting through fully compliant Making Tax Digital software.
No confusion. No missed deadlines. No stress.

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Accurate CIS deductions

We calculate the correct tax deductions for every subcontractor, avoiding costly mistakes.

Accurate CIS deductions

We calculate the correct tax deductions for every subcontractor, avoiding costly mistakes.

Accurate CIS deductions

We calculate the correct tax deductions for every subcontractor, avoiding costly mistakes.

Monthly CIS submissions

We submit your CIS returns to HMRC on time, every month — no exceptions.

Monthly CIS submissions

We submit your CIS returns to HMRC on time, every month — no exceptions.

Monthly CIS submissions

We submit your CIS returns to HMRC on time, every month — no exceptions.

Subcontractor verification

We verify subcontractors directly with HMRC to ensure the right deduction rate is applied.

Subcontractor verification

We verify subcontractors directly with HMRC to ensure the right deduction rate is applied.

Subcontractor verification

We verify subcontractors directly with HMRC to ensure the right deduction rate is applied.

Frequently asked questions

Answers to common questions about getting started with CGI Accountants.

What information do I need to provide for CIS?

Subcontractor details, invoices, hours or job records, and payment information. If anything’s missing, we help you collect and organise it.

Book a call

Do you prefer email? We're available at:

info@cgiaccountants.co.uk

What information do I need to provide for CIS?

Subcontractor details, invoices, hours or job records, and payment information. If anything’s missing, we help you collect and organise it.

Book a call

Do you prefer email? We're available at:

info@cgiaccountants.co.uk

What information do I need to provide for CIS?

Subcontractor details, invoices, hours or job records, and payment information. If anything’s missing, we help you collect and organise it.

Book a call

Do you prefer email? We're available at:

info@cgiaccountants.co.uk

How do you verify subcontractors?

We use HMRC’s online verification system to confirm whether to apply 20%, 30%, or gross payment status.

What happens if CIS is submitted late?

HMRC charges penalties starting at £100 and increasing over time. We track deadlines and file monthly returns to prevent this.

Can you manage both CIS and payroll?

Absolutely. Many construction businesses use both — we coordinate them seamlessly.

Can you help if previous CIS submissions were incorrect?

Yes. We can correct errors, file amendments, and liaise with HMRC on your behalf.

Do you support businesses new to CIS?

Yes. We’ll help you register, understand obligations, and set up a smooth monthly process.

How do you verify subcontractors?

We use HMRC’s online verification system to confirm whether to apply 20%, 30%, or gross payment status.

What happens if CIS is submitted late?

HMRC charges penalties starting at £100 and increasing over time. We track deadlines and file monthly returns to prevent this.

Can you manage both CIS and payroll?

Absolutely. Many construction businesses use both — we coordinate them seamlessly.

Can you help if previous CIS submissions were incorrect?

Yes. We can correct errors, file amendments, and liaise with HMRC on your behalf.

Do you support businesses new to CIS?

Yes. We’ll help you register, understand obligations, and set up a smooth monthly process.

How do you verify subcontractors?

We use HMRC’s online verification system to confirm whether to apply 20%, 30%, or gross payment status.

What happens if CIS is submitted late?

HMRC charges penalties starting at £100 and increasing over time. We track deadlines and file monthly returns to prevent this.

Can you manage both CIS and payroll?

Absolutely. Many construction businesses use both — we coordinate them seamlessly.

Can you help if previous CIS submissions were incorrect?

Yes. We can correct errors, file amendments, and liaise with HMRC on your behalf.

Do you support businesses new to CIS?

Yes. We’ll help you register, understand obligations, and set up a smooth monthly process.