has not yet completed its tax calculation for the period (quarter or annual)

the PIE may be able to adjust for the correct tax rate for that quarter or tax year.

has already completed its tax calculation for the period (quarter or annual)

the change will apply from the PIE's next calculation period.

PIR applied in earlier periods was 30%

your new PIR is 19.5%

you will not be able to get a refund of tax calculated at the higher rate.

PIR applied in earlier periods was less than your new PIR of 30%

you must include the income taxed at the lower rate in your tax return and pay any balance of tax.

You will be given a credit for the tax paid.

your income changes during the current year

as an individual investor, your PIR is not affected as it is determined by the income received in the previous two years.

your income changes for a previous year

as an individual investor, you need to tell the PIE of any change to your PIR arising from a change in income in either of the previous two years.