26 August 2026

Electronic invoices: the mistakes made most often

The five most common technical and accounting mistakes in the e-invoicing system that lead to a deduction being refused.

Electronic invoicing rules out paper forgeries but demands precision in the details. Drawing on our audit practice, we have singled out five mistakes accountants make again and again.

The shipping date and the issue date do not match

An electronic invoice must be issued within a strictly regulated period after the goods actually change hands. Missing that period stops the buyer from claiming the VAT deduction in the current tax period.

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