Source SNI
VAT reporting requirement i.MAS was introduced in 2016 for large organizations. It became mandatory for all companies in 2020.
i.MAS has three main parts, which are called i.SAF, i.VAZ and i.SAF-T.
- i.SAF invoice data: This XML electronic register of sales and purchase invoices is submitted monthly with the VAT return by the 20th of the month following the reporting period. All VAT-registered businesses must complete the submission.
- i.VAZ transport/consignment document: XML data supporting documents for domestic movements of goods by road.
- i.SAF-T: Accounting transaction reporting for resident businesses only. Currently, it is required only on demand by tax authority.
i.SAF: All taxable persons registered for VAT must submit “i.SAF” (data on VAT invoices issued and received under its Lithuanian VAT number) to the Tax Authority’s system.
It is submitted in XML format on a monthly basis (by the 20th day of the following month).
SAF-T (or i.SAF-T): SAF-T accounting transaction reporting only for resident businesses. This is mandatory only on request.
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