Final answer:
The type of penalty assessed on a taxpayer who pays taxes after the due date of the return is the Late payment penalty, which is calculated as a percentage of the unpaid tax amount.
Step-by-step explanation:
The type of penalty that will be assessed on a taxpayer who pays her taxes due after the due date of the return is the Late payment penalty. This penalty is imposed on taxpayers who do not pay their taxes by the deadline. It is important to note that this penalty is separate from the Late filing penalty, which is imposed when the taxpayer fails to submit their tax return by the due date.
The Late payment penalty is calculated as a percentage of the unpaid tax amount and is charged for each month or part of a month that the payment is late. The penalty rate can vary depending on the tax jurisdiction, but it is usually a fraction of the amount owed.
For example, if a taxpayer owes $1,000 in taxes and pays it one month late, and the penalty rate is 0.5% per month, then the Late payment penalty would be $5 (0.5% of $1,000) for that month.