The Pay As You Go (PAYG) instalment system requires certain taxpayers deriving business or investment income to pay instalments progressively towards their income tax liability. When the taxpayer lodges their tax return, these instalments are credited against their income tax liability and any excess amounts paid are refunded.
PAYG instalments are different to PAYG withholding, which refers to the tax withheld by payers from payments to payees.
The calculation of these PAYG instalments, and the number of instalments required in a year, is dependent upon a taxpayer’s circumstances.