On 4 August 2023, the President signed the Act to amend the Goods and Services Tax Act and Certain Other Acts (“Amending Law”), introducing mandatory e-invoices and National E-Invoicing System (KSeF) with effect from 1 July 2024. In addition to imposing KSeF and e-invoicing obligations, the Amending Law also changes some invoicing-related regulations in the VAT Act which are not directly related to KSeF.

New prepayment evidence rules will enter into force on 1 September 2023. You will not be required to issue an prepayment invoice if payment is received in whole or in part in the month of the transaction on account of which the prepayment is received. In such cases, the final invoice evidencing the delivery or completion should additionally state the date of receipt of the payment, unless the date is the same as the invoice date. Under current law, you would in the same situation have to issue two different invoices: one in support of the prepayment, and the other in support of the supply (as long as the prepayment is not for the full value of the supply). As can be seen, this long-awaited change will greatly simplify documentation requirements for prepayments received shortly before completion.

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