News

During the downtime, on 7 February 2023 between 7 am and 9 am, the Ilmoitin.fi website and its software interfaces are temporarily unavailable.

Key changes:

• Ilmoitin accepts income tax returns for corporate taxpayers 2023 accounting periods. Users can both check and submit returns (Forms 4, 6, 6B, 6C and 6U).
• New enclosure forms are:
• 67A - Claim for temporary additional tax deduction for R&D expenses - Subcontractors invoices
• 67Y - General claim for addintional tax deduction for R&D expenses
• Removed enclosure form: 67 - Additional expense deduction for research and development activities.
• The following type of enclosure were added 7 February 2023:
• "Pitkä tuloslaskelma" (Long version of profit-and-loss (P&L) statement)
• NOTE: Only for filers of Form 6C
• The updated specifications are found at the tax.fi website.
• The data file specifications for annual information returns of 2023 are published but their formats will not be available until the March version of Ilmoitin is launched on 28 March 2023. The updated specifications are found at the tax.fi website.