Sweden submitted Proposition 2026/27:4 to Parliament on 13 October 2026; it was referred to the Tax Committee on 14 October. This advances the August Council on Legislation referral, but is not parliamentary adoption or enactment.
Proposed Chapter 8, sections 18 a–18 b retain Side-by-Side IIR/UTPR relief and narrower UPE-jurisdiction UTPR relief, subject to an Inclusive Framework-approved regime. The bill also extends the Transitional CbCR Safe Harbour to fiscal years beginning before 1 January 2028 and ending no later than 30 June 2029. Proposed commencement is 1 January 2027, normally for years beginning after 31 December 2026; transitional point 3 permits elective earlier application, with the new Side-by-Side, UPE and qualified-incentive provisions no earlier than years beginning after 31 December 2025. Parliamentary record; Official bill, pages 15–17.