Date and time
Event Category
The deadlines for making IMI payments on Portugal mainland normally are:
• If the amount to be paid is up to 100 euros, it must be paid once, by the 1st of June 2026
• Two instalments (more than 100 euros and equal to or less than 500 euros): by the 1st of June and 30th of November 2026
• Three instalments (more than 500 euros): by the 1st of June, 31st of August and 30th of November 2026.