Serbia Amends VAT Rulebook: New Rules on Tax Base Changes, Discounts, and Goods Returns

Amendments to the Serbian VAT Rulebook apply from April–June 2026, clarifying rules on determining and changing the VAT base.
VAT base can be estimated when the exact amount is unknown, with specific rules for tax debtors and when third-party data is involved.
Any change to the VAT base (increase or decrease) is reported in the period it occurs; reductions due to discounts or returns are recognized when contractual conditions are met, regardless of document issuance date.
All returns of goods now trigger a reduction of the tax base, expanding previous rules.
The last day of the tax period can be used as the date for VAT base changes, and one document may be used for increases or decreases.

Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.