Polish Sejm Approves Amendment of Mandatory Disclosure Rules to Remove Reporting on Domestic Arrangements

Poland's Sejm (lower house of parliament) approved the Government bill amending the Tax Ordinance Act and certain other acts on 15 May 2026. The bill includes various measures meant to simplify and reduce administrative burdens/correspondence. One of the main amendments provides for the removal of the obligation to report domestic tax schemes (arrangements) under Poland's implementation of the mandatory disclosure rules (DAC6). Although Poland implemented rules for domestic arrangements as p…