If the isReliefSupply field in the invoiceHeader of the request is set to true, it indicates that the transaction qualifies for relief under Malawi's VAT regulations, In such cases:
The taxpayer is eligible to exclude VAT for certain goods or services based on the relief rules.
The terminal must correctly calculate the taxable amount and ensure VAT is excluded where applicable.
Relief supply transactions require the VAT 5 certificate details to be validated using the Validate VAT 5 Certificate endpoint.
Additionally, if the buyerTIN is provided, this indicates a business-to-business transaction. On the taxpayer's portal, the taxpayer has the option to protect or not protect their TIN.
If the TIN is protected, business-to-business transactions will require a valid purchase authorization code, which can be generated on the MRA taxpayers portal before the transaction is processed.
If the TIN is not protected, no authorization code is required for B2B transactions.