Finland Tax Agency Updates Guidance on Income Tax Late Filing Penalties

The Finnish Tax Administration May 21 posted online updated Guidance No. VH/2608/00.01.00/2026, clarifying income tax late filing penalties. Updated topics include: 1) the imposition of late filing penalties for tax returns or corrections submitted after the deadline but before the end of assessment period for the tax year; 2) the nonapplication of a late filing fee for reasons beyond the taxpayer’s control, minor omissions, or valid reasons, as defined; 3) tax increase rates, including the default level of 2 percent of added income and 10 percent of increased tax; and 4) Supreme Administrative Court Decision No. KHO:2026:4, reducing to 1 ...