Contract management software

CIS and reverse charge, handled on the invoice

Verify subcontractors against HMRC, split labour from materials, apply the correct deduction rate, and get domestic reverse charge VAT right before the invoice reaches your ledger.

app.coreloops.ai/subcontractors/mercer-groundworks
Subcontractor record
Mercer Groundworks Ltd
UTR 4827193056 · CRN 09183746
Verified — Gross
Deduction rate0%
Match statusMatched
Verified on02/09/2026
CIS invoice INV-2214
LineNetCIS
Labour£18,400−£3,680
Materials£7,250£0
VAT · domestic reverse charge£0—
Payable£25,650−£3,680
Domestic reverse charge applies · customer to account for VAT
HMRC verification
Verified — Gross

Is CIS still a manual check?

Verification happens in a separate system

Someone logs into the Gateway, checks a subcontractor, and writes the result down somewhere else.

Labour and materials get split by eye

Deducting on the wrong base is an error you only find when HMRC or the subcontractor does.

Reverse charge is applied inconsistently

Domestic reverse charge and foreign supplier VAT are handled differently by whoever happens to process the invoice.

See how growing contractors are using Coreloops to handle CIS and VAT.

Real HMRC subcontractor verification

Verify subcontractors against HMRC through the Government Gateway and keep the verification result and match status on the subcontractor record, rather than on a note beside it.

Verification result
SubcontractorMercer Groundworks Ltd
UTR4827193056
Match statusMatched
Verification numberV0018273645
Verified on02/09/2026 · Gateway
Match statusMatched
INV-2231 · Hadley Mechanical Ltd
LineNetDeduction
Labour£12,600−£2,520
Materials£9,840not deductible
Net payable£22,440−£2,520
Deduction calculated on the labour line only · carried to the payment and the cost report
−£2,520at 20%, net status

Deductions on the right base

Split labour and materials on the invoice, apply the deduction rate that matches the subcontractor's status, and carry the net figure through to the payment and the cost report.

Domestic reverse charge, applied correctly

Domestic reverse charge and foreign supplier VAT are handled at line level, so what posts to your ledger is right the first time rather than corrected at the VAT return.

Invoice line · VAT treatment
Mechanical first fix, block C
Domestic Reverse Charge
Net£12,600
VAT£0.00
Gross£12,600
Customer to account for VAT to HMRC. Posted to your ledger with the reverse charge flag already set.
Domestic Reverse Charge
Testimonials

What the industry is saying

How contractors are taking control of their costs and contracts with Coreloops.

We had CEs there with our approval attached to it. There was no way for the client to dispute it.

SM

Samuel Maddison

Director, Project Safe

The result

£100k

NEC dispute resolved without escalation

Read the case study
Talk to the team

Book a discovery call

We'll learn about your current setup and show you how Coreloops could help you verify subcontractors and apply CIS and VAT correctly.

✓
30 minutes, on a video call
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No prep, nothing to bring
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Shown against how you work today
Book a call
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