FREE CALCULATOR

CIS Invoice Calculator

Enter your labour and materials — get the exact figures for your CIS invoice in seconds. Free, instant, no sign up needed.

CIS Deduction Calculator

// FREE TOOL

Labour amount (£)

Materials amount (£) — not subject to CIS deduction

CIS deduction rate

VAT registered?

Labour —

Materials —

VAT (20%) —

Gross invoice total —

CIS deduction (20% on labour) —

NET AMOUNT PAYABLE —

The contractor pays you the net amount and submits the CIS deduction to HMRC on your behalf. Keep this calculation for your records.

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Invoice Template

Pre-built with labour, materials, CIS deduction section, and net payable. HMRC-compliant. Word format. Enter your email and we'll send it over.

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// HOW CIS WORKS

Understanding the
CIS Deduction

What is the CIS deduction?

Under the Construction Industry Scheme, contractors must deduct money from subcontractor payments and pass it to HMRC. The deduction is an advance payment of the subcontractor's tax and National Insurance.

What rate am I on?

20% — standard rate, most registered subcontractors.
30% — if you're not registered with HMRC for CIS.
0% — gross payment status (HMRC approval needed).

Labour vs materials

The CIS deduction only applies to labour. Materials are excluded. This is why it's important to split them clearly on your invoice — contractors can only deduct from the labour element.

VAT on CIS invoices

If you're VAT registered, VAT is charged on the full invoice (labour + materials) before the CIS deduction. The CIS deduction is taken from the gross figure. VAT is paid separately to HMRC.

What to put on the invoice

Your invoice must show: labour subtotal, materials subtotal, VAT (if applicable), gross total, CIS deduction amount, and the net amount payable. The template we send covers all of this.

CIS statements

By the 19th of each month, your contractor must send you a CIS deduction statement showing what was deducted and paid to HMRC. You use this to claim the deduction against your tax bill at Self Assessment.

// COMMON QUESTIONS

CIS FAQs

Do I have to be registered for CIS?

Yes, if you work as a subcontractor in construction you must be registered with HMRC for CIS. If you're not registered, the deduction rate is 30% instead of 20%. Register at gov.uk — it takes about 10 minutes.

Is the CIS deduction taken before or after VAT?

CIS is deducted from the net amount (before VAT). VAT is charged on the full invoice and paid separately. So if you invoice £1,000 labour + 20% VAT = £1,200 gross, the CIS deduction is 20% of £1,000 = £200. You receive £1,000 net.

Can I get the CIS deduction back?

Yes. At Self Assessment, you declare the CIS deductions made against your tax bill. If more was deducted than you owe in tax, HMRC will refund the difference. Keep all your CIS statements from contractors.

What if my contractor doesn't give me a CIS statement?

They're legally required to provide one by the 19th of each month. Chase them in writing. If they still don't, report it to HMRC — you can still claim the deduction but you'll need evidence of the amounts.

Can I do CIS invoices from WhatsApp?

Yes — TaskDrop handles CIS invoices automatically. It asks one question (is this a CIS job?), then calculates the correct labour/materials split, the deduction, and the net payable. Takes 60 seconds. Try it free →

// THE FASTER WAY

Do CIS Invoices in 60 Seconds

Stop calculating by hand. Type CIS on WhatsApp, answer a few questions, and TaskDrop generates the correct CIS invoice automatically — labour, materials, deduction, net payable. Every time.

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