Subcontracting invoicing: the right checks

Updated March 2026 - Subcontracting invoicing cannot be managed with a single rule. It is necessary to distinguish between outsourced invoicing in the documentary sense and the subcontracting of work, especially in construction, where the question of reverse charge VAT becomes central.

See also How to calculate prices excluding and including tax, VAT return and tax or payroll question.

• ▸who is issuing the invoice;
• ▸in whose name it is issued;
• ▸which VAT regime applies;
• ▸whether the mention "reverse charge" is required;
• ▸whether prior agreement exists where an invoicing mandate is used.

Hayot Expertise insight: in subcontracting, the real error is often not just the wrong VAT rate. It is the wrong qualification of the flow itself.

A file can look simple on the surface while combining contractual delegation, invoicing mandates and a specific VAT treatment. Once the flow is badly qualified, the invoice, the wording and the declaration chain all become fragile.

We can review the wording, the VAT treatment and the invoicing logic that actually applies.

Discover our accounting and tax support

In 2026, reliable subcontracting invoicing means connecting the contract, the VAT treatment and the real issue path of the invoice. That is what makes the file defensible.

???? Need help checking subcontracting invoices? We can help qualify the flow correctly and validate the right invoicing logic. Book an appointment with an expert