Belgium has published a notice from the Federal Public Service (SPF) Finance in the Official Gazette that includes an explanation of the rules on advance income tax payments for the 2018 tax year (2019 assessment year).

Advance Tax Payment Schedule

Advance tax payments are due quarterly. For 2018 (assessment year 2019), the standard payment deadlines are 10 April 2018, 10 July 2019, 10 Octob…