Adjustment shall, in particular, be made where, after the initial VAT deduction is claimed, some change occurs in the factors used to determine the amount to be deducted, for example where purchases are cancelled or price reductions are obtained.
On 28 May 2020, the Court of Justice of the European Union, in the World Comm Trading case (Case C-684/18), addressed the VAT consequences of rebates for businesses receiving such rebates.
Source: accace.com