Building-land taxable values for 2026: decision reissued, rates unchanged

The Tax Administration (Verohallinto/Skatteförvaltningen) has reissued its decision on the computation bases for the taxable value of building land for tax year 2026Vero. Dated in Helsinki on 7 October 2026 and signed by Director General Markku Heikura and Senior Inspector Kimmo Tossavainen, the decision enters into force on 31 December 2026Vero and applies to the determination of building-land taxable values for 2026Vero. The previous version, dated 25 November 2025Vero, applied the same framework to 2025 valuesVero.

The mechanics are unchanged; only the reference years move forward. The taxable value of building land is computed from municipality-specific plot price maps and valuation guidance reflecting fair local area values (aluehinta/områdespris)Vero, now the 2026 area pricesVero. The taxable value is 75 per cent of the 2026 area priceVero (the target value, tavoitearvo/normgivande värde)Vero.

The phase-in rule in section 4Vero rolls forward with it. Where the 2025 taxable value is below the target value, the 2026 value is derived by raising the 2025 valueVero, with the table in section 4 assigning a 30 per cent increase to values below 80 per cent of the targetVero and a 20 per cent increase to values at or above that lineVero. The increase cap does not apply where the earlier base rested on an erroneous computation basis, area price or building-right volumeVero. The floor of EUR 0.75 per square metreVero and the cap at the target valueVero remain.

The size-discount formulas are likewise carried over unchanged. In sparsely populated areas, plots larger than usual are valued at full value up to 3,000 m²Vero, at half the base price for the part up to 5,000 m²Vero, at one quarter for the part between 5,000 and 10,000 m²Vero, and at 10 per cent of the base price beyond 10,000 m²Vero, with a preserved 2,000 m² full-value band for previously formed plots valued under the older ruleVero. Larger-than-usual industrial and warehouse sites in plan areas are valued at full value up to 20,000 m²Vero, half up to 50,000 m²Vero and one quarter beyondVero. The unit price is never below EUR 1 per square metreVero, and where the fair value of the land is lower than the computed value, the fair value governsVero.

Where no valuation guidance or map value exists for the land, or the bases underlying its fair value have materially changed, the value is computed by applying the corresponding area's municipal guidance and map data as applicableVero.

For owners of building land and those advising them, the operative point is the calendar: 2026 valuations use the 2026 area prices under this decisionVero, with the 2025-to-2026 phase-in percentages capping year-on-year risesVero, and the new decision applying from 31 December 2026Vero.

Legal basis: Verohallinnon päätös rakennusmaan verotusarvon laskentaperusteista / Skatteförvaltningens beslut om grunderna för beräkningen av beskattningsvärdet för byggnadsmark, issued under section 29(4) of the Act on the Valuation of Assets for Taxation (Laki varojen arvostamisesta verotuksessa 1142/2005, as amended by Act 505/2010).