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  • Calculating fortnightly, monthly or quarterly withholding amounts

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    Warning:

    This information may not apply to the current year. Check the content carefully to ensure it is applicable to your circumstances.

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    First calculate the weekly equivalent of fortnightly, monthly or quarterly earnings. If you pay:

    • fortnightly – divide the sum of the fortnightly earnings and the amount of any allowances subject to withholding by two. Ignore any cents in the result and then add 99 cents
    • monthly – obtain the sum of the monthly earnings and the amount of any allowances subject to withholding (if the result is an amount ending in 33 cents, add one cent). Multiply this amount by three and then divide by 13. Ignore any cents in the result and then add 99 cents
    • quarterly – divide the sum of the quarterly earnings and the amount of any allowances subject to withholding by 13. Ignore any cents in the result and then add 99 cents.

    Then calculate fortnightly, monthly or quarterly withholding amounts as follows:

    • fortnightly – determine the rounded weekly withholding amount applicable to the weekly equivalent of earnings before any adjustment for tax offsets. Multiply this amount by two
    • monthly – determine the rounded weekly withholding amount applicable to the weekly equivalent of earnings before any adjustment for tax offsets. Multiply this amount by 13, divide the product by three and round the result to the nearest dollar
    • quarterly – determine the rounded weekly withholding amount applicable to the weekly equivalent of earnings before any adjustment for tax offsets. Multiply this amount by 13.
    Last modified: 14 Jun 2017QC 52075