Income Tax - Late Payment

Question 1

For late tax and penalties, when does interest run from and to?

Answer 1

For late tax and penalties, interest runs from the due date to the day payment is made (excluding the due date and date of payment themselves)

Question 2

For additional tax due (due to amendments and discovery assessments) when does interest run from and to?

Answer 2

Interest runs from the annual submission date to the day before payment is made