Forfettari E-Invoicing Compliance Guide for 2027: Italy
Italian flat-rate taxpayers (forfettari) face unchanged e-invoicing obligations in 2027, with mandatory electronic invoicing requirements that took effect on January 1, 2024. No legislative amendments have been announced for 2027, though the Sistema di Interscambio (SdI) underwent a technical validation update on October 10, 2026.
Key takeaways
- Italian flat-rate taxpayers (forfettari) must include specific fields in their electronic invoices, such as fiscal regime code RF19 and VAT nature code N2.2.
- Immediate invoices must be transmitted to the SdI within 12 days, while deferred invoices have a deadline of the 15th of the following month.
- The €2 virtual stamp duty is paid quarterly via F24, with the option to defer payment if the total liability is under €5,000.
- Paper invoices issued by forfettari are deemed legally non-issued, with penalties ranging from €250 to €2,000 per violation.
- Agenzia delle Entrate provides free 10-year digital conservation, but taxpayers must explicitly activate this service.
Context
The mandatory e-invoicing regime for Italian flat-rate taxpayers has been in place since 2024, with no substantive changes expected for 2027. The Sistema di Interscambio (SdI) recently underwent a technical validation update on October 10, 2026, which refined existing processes but did not introduce new policy requirements. This guide focuses on the practical compliance obligations for forfettari, including mandatory invoice fields, stamp duty mechanics, penalty tiers under D.Lgs. 87/2024, and digital conservation requirements.
Mandatory Invoice Fields
Forfettari must include specific fields in their electronic invoices to ensure compliance. These mandatory fields are:
- Fiscal regime code RF19: Indicates the flat-rate taxation scheme.
- VAT nature code N2.2 (non-taxable): Specifies that the invoice is not subject to VAT.
- Statutory reference to Law 190/2014: Mandates the inclusion of this legal reference.
- €2 virtual stamp duty marker: Required for invoices exceeding €77.47.
Omission of any of these fields risks the invoice being treated as non-compliant, potentially leading to penalties.
Transmission Deadlines
Forfettari must adhere to specific deadlines for transmitting invoices to the SdI:
- Immediate invoices: Must be transmitted within 12 days of issuance.
- Deferred invoices: Must be transmitted by the 15th of the month following the reference period.
Failure to meet these deadlines can result in penalties, underscoring the importance of timely compliance.
Stamp Duty Mechanics
The €2 virtual stamp duty (bollo virtuale) is a key requirement for invoices exceeding €77.47. This duty is paid quarterly via the F24 form. If the total quarterly stamp duty liability is under €5,000, forfettari have the option to defer payment to the following quarter. This provision offers flexibility in managing cash flow, particularly for smaller businesses.
Penalties and Exemptions
Penalties
Paper invoices issued by forfettari obligated to use e-invoicing are deemed legally non-issued, even if the underlying income is declared. Penalties for such violations range from €250 to €2,000 per incident. For missed or late stamp duty payments, D.Lgs. 87/2024 (in force from September 1, 2024) reduced the penalty to 25% of the unpaid tax. This penalty can be further reduced through ravvedimento operoso, a voluntary disclosure mechanism that allows taxpayers to rectify errors and mitigate penalties.
Healthcare Exemption
Healthcare services invoiced to private individuals remain exempt from e-invoicing requirements due to privacy concerns. This exemption requires annual renewal verification, which is typically announced in the fourth quarter of the prior year. As of October 18, 2026, the renewal status for 2027 has not been confirmed in public sources.
Digital Conservation
Agenzia delle Entrate offers a free 10-year digital conservation service via the SdI and its taxpayer portal. This service is not automatic; forfettari must explicitly activate it to ensure their invoices are stored digitally. Proper digital conservation is crucial for compliance and potential audits, making this service an important tool for managing invoicing records.
Frequently asked questions
- What are the mandatory fields for forfettari invoices?
- Forfettari must include fiscal regime code RF19, VAT nature code N2.2, a statutory reference to Law 190/2014, and a €2 virtual stamp duty marker for invoices exceeding €77.47.
- What are the deadlines for transmitting invoices to the SdI?
- Immediate invoices must be transmitted within 12 days of issuance, while deferred invoices have a deadline of the 15th of the following month.
- How is the €2 virtual stamp duty paid?
- The stamp duty is paid quarterly via F24. If the total quarterly liability is under €5,000, payment can be deferred to the following quarter.
- What penalties apply for non-compliance?
- Paper invoices issued by forfettari are deemed legally non-issued, with penalties ranging from €250 to €2,000 per violation. For missed or late stamp duty payments, the penalty is 25% of the unpaid tax, reducible via voluntary disclosure.
- Is there an exemption for healthcare services?
- Healthcare services invoiced to private individuals are exempt from e-invoicing requirements due to privacy concerns, subject to annual renewal verification.
