MYOB · Payroll Tax Tables

How to Fix MYOB Tax Table Error

PAYG withholding is calculating incorrectly, MYOB reports that your tax tables are out of date, or new rates have not applied after a payroll update.

At QuickFix Bookkeeping, the timing that catches businesses every year: tax tables change on 1 July, and the update must be installed before your first pay run of the new financial year. A pay run processed on old tables withholds the wrong amount, and every affected employee has to be corrected afterward.

What Causes This

Update not installed

The new financial year tax tables were never downloaded, so old rates are still applying.

Pay run dated wrongly

A pay run dated before 1 July uses the old tables, correctly, even if you process it later.

Employee tax setting wrong

A wrong tax scale, or a missing tax file number, produces plausible but incorrect withholding.

Update blocked

Antivirus or a permissions fault silently blocked the tax table download.

How to Fix It

METHOD 1Install the Current Tax TablesRates are out of date
1

Check the tax table revision date shown in MYOB against the current financial year. If it predates 1 July of the current year, it is out of date.

2

Install the latest MYOB update, which carries the new tables. You must be signed in as a Windows administrator for the install to complete.

3

Restart MYOB afterward and confirm the revision date has changed. An update that appeared to install but did not change the date has failed silently, usually blocked by antivirus.

METHOD 2Check the Pay Run DateRates correct, withholding wrong
1

MYOB applies the tax table valid for the pay date, not the date you process the run. A pay run dated 28 June processed on 3 July correctly uses the old tables.

2

Confirm the pay date is what you intend before processing. If a run was dated wrongly and has already been processed, reverse it and reprocess with the correct date rather than adjusting the tax by hand.

METHOD 3Check the Employee Tax DetailsOne employee is wrong
1

If withholding is wrong for one employee rather than all, the fault is on their card, not in the tax tables.

2

Open the employee and check the tax scale, whether the tax-free threshold is claimed, any HELP or study loan flags, and that the tax file number is present and valid.

3

A missing tax file number triggers the no-TFN withholding rate, which is very high and immediately obvious to the employee.

METHOD 4Correct Pay Runs Already ProcessedWrong tax already paid
1

Reverse the affected pay runs and reprocess them on the correct tables where you can. This is cleanest and keeps your STP year to date figures correct automatically.

2

If reversal is not practical, the difference is corrected through subsequent pay runs. Because STP reports year to date totals, the figures self-correct once the underlying records are right. See our STP guide.

Update Before Your First July Pay Run

This is a diary entry, not a troubleshooting task. Install the new tax tables in the last week of June, before the first pay run of the new financial year. Correcting withholding across a whole payroll after the fact is slow, visible to your staff, and entirely avoidable.

Related Guides

PAYG Withholding Coming Out Wrong?

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Wrong withholding affects every employee and every STP submission until it is corrected. We install the right tables, fix the employee records, and reconcile what has already been paid.

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