Does a CIS invoice need to split labour and materials?
Yes, whenever you have supplied materials. The CIS deduction applies to the labour element only, so the contractor needs the split to calculate the deduction correctly. If the invoice shows one combined figure, many contractors deduct on the full amount, which over-deducts you on every job. On a £2,000 invoice with £1,300 of materials, that error costs £260.
Should I show the CIS deduction on my invoice?
It is not a legal requirement, but it is good practice and this template includes it. Showing the expected deduction against the labour line makes the amount payable unambiguous, gives the contractor a figure to check against, and creates a paper trail if the deduction on the payment and deduction statement later differs.
When does the VAT domestic reverse charge apply to my invoice?
Broadly, when all of these are true: the supply is standard or reduced rated construction services within CIS, both you and your customer are VAT registered, the customer is CIS registered, and the customer is not an end user or intermediary who has notified you of that status in writing. When it applies, you do not charge VAT. You state the VAT rate and the reverse charge wording, and the customer accounts for the VAT to HMRC.
What wording must a reverse charge invoice include?
HMRC requires a clear note that the reverse charge applies and that the customer must account for the VAT, for example: "Reverse charge: customer to account for VAT to HMRC." The invoice must also make clear the VAT rate that applies (usually 20%), even though no VAT is added to the total. The reverse charge version of this template includes both.
Is CIS deducted before or after VAT?
The CIS deduction is always calculated on amounts excluding VAT. Under a standard VAT invoice, the contractor deducts CIS from the labour element net of VAT, then pays the VAT in full. Under the reverse charge there is no VAT on the invoice anyway, so the calculation is unchanged: deduction rate multiplied by the labour element.
Which CIS rate should I use in the template?
20% if you are registered for CIS, 30% if you are unregistered or the contractor cannot verify you, and 0% if you hold gross payment status. The Excel version has an editable rate cell that recalculates the deduction and amount payable automatically.
Does plant hire go in the labour or materials column?
Plant hired from a third party, including fuel and consumables for it, can be treated as materials and excluded from the CIS deduction base under HMRC's CIS 340 guidance. Plant you own cannot be excluded. If in doubt, keep the hire invoice as evidence and show the cost on a materials line.