The special advance payment (SAP) regarding corporate income tax (CIT) was reduced in 100€ plus 12,5% of the total calculated amount, this reduction will take place in 2017 payment(s).
The total amount is due in March, neverthless this payment can be done in two payments, March and October, 50% of the total amount each.
Companies that already paid the total amount using the previous calculation method can request the difference return, or, if the amount paid was fraccioned, the excess can be deducted to the last payment due in October.
The SAP reduction was forseen on the govern program,
See Law n.º 10-A/2017, March 29, and Finance Ministry comunication