VectorInvoiceBookkeeping help
i.SAF register
i.SAF is the invoice register a VAT payer files with the VAT return. The official day in the following month is the 20th. Weekends and Lithuanian public holidays move that day to the next working day.
The XML is built from invoices you marked approved. You download it and review it. You can upload it yourself, or submit i.SAF via a secure VMI token connection where supported. The app does not contact EDS or Mano VMI, and it does not submit GPM311, FR0600 or FR0781.
An empty period can be prepared only when no invoice falls inside the dates. A sales invoice issued without VAT is income in the journal and is not added to the VAT register.
Official sources
The FR0600 page explains how VMI compares the issued register with the VAT return. VectorInvoice records that comparison locally. It does not file FR0600.
VectorInvoice is software, not tax advice. For individual questions, consult a certified tax advisor (mokesčių konsultantas / Steuerberater).