Smart Tax Administration System (ISAF): What Is Useful to Know?
ISAF, or the subsystem of smart invoices, is one of the parts of i.MAS (Smart Tax Administration System), created by the State Tax Inspectorate (VMI). Its main goal is to digitally receive and analyze VAT invoice data.
This allows VMI to more effectively monitor VAT chains, identify risky transactions, and reduce the scale of the shadow economy. Failure to submit ISAF data on time or submitting incorrect data may result in fines for companies.
Who is the ISAF system intended for?
The ISAF system is mandatory for all legal entities that are VAT payers and:
- Issue or receive VAT invoices;
- Conduct economic activities subject to VAT;
- Are obligated to submit data to VMI about purchases and sales.
ISAF helps record and transmit transaction information between companies and VMI in a transparent and unified format.
What needs to be submitted in the ISAF file?
The ISAF file must include:
- Issued VAT invoices;
- Received VAT invoices;
- Data on purchases, sales, and other commercial transactions.
The file is submitted in XML format, which must comply with the structural and technical requirements set by VMI.
Common mistakes:
- Incorrect VAT payer code or duplicate invoice numbers;
- Discrepancy between declared and actually submitted invoices;
- Format errors when submitting the XML file.
FAQ
When should ISAF be submitted?
ISAF data is submitted monthly by the 20th day of the following month.
Is ISAF mandatory for a small company?
Yes, if the company is a VAT payer, regardless of its size, it must submit ISAF data.
What happens if ISAF is not submitted on time?
Late or incorrect submission may result in fines or other sanctions imposed by VMI.
Does Rivile help with ISAF?
Yes, the Rivile ERP system allows easy generation and submission of ISAF XML files to VMI.
How much does ISAF file generation cost?
ISAF generation is an integrated Rivile ERP function, so it is only additionally charged if individual support or modifications are applied.
