THE SHORT ANSWER
Explain the difference
before deciding what to do.
A payroll overpayment is a payment made in error beyond what the employee was entitled to receive. An unexpected payment, as used in this guide, is an amount that differs from your comparison and still needs an explanation. It may be valid pay, a timing difference, a data issue or a genuine error.
First confirm what was actually paid, what it relates to and which entitlements belong in the comparison. Then document the explanation. A positive variance is a review signal; it does not by itself establish an employee debt.
Start with three questions: Was money actually paid? Does it belong to this work and period? Does the calculation include the employee’s applicable entitlements and agreed rate?
CHECK 01
Confirm the payment and the basis.
Identify the employee, pay run, earnings line and amount that triggered the question. Separate gross earnings, net pay and the bank transfer. A deposit should be reconciled to net pay, while an hourly entitlement comparison generally uses matching gross earnings.
Check whether the record shows a completed payment, a draft pay run, an accounting entry or a reversed transaction. Two rows in an export are not proof that the employee received money twice.
Keep: the original pay slip, earnings breakdown, payment status and payment reference. Use authorised records and limit access to people handling the review.
CHECK 02
Match the work and payment periods.
Record both the date the money was paid and the dates the earnings relate to. A current pay run may include an earlier missed shift, a retrospective rate adjustment or another back payment.
Reconcile linked pay runs, off-cycle payments and reversals. Allocate each amount to its documented purpose, and count it once. Do not move a payment to another period simply to make the totals match.
Check: Is the comparison mixing one week’s expected earnings with a fortnight’s paid earnings? Is a correction for earlier work being compared with the current shift?
Keep: a mapping from each earnings line to its employee, work dates, pay period and adjustment reference.
CHECK 03
Check the full entitlement and agreed pay.
Confirm the applicable workplace-relations system, Award or registered agreement, employment type and classification. Check the rules and rates relevant to the work dates, together with any agreed higher pay rate.
An Award minimum alone is not the employee’s complete entitlement. Review applicable overtime, penalty rates, casual loading, minimum engagements, allowances and other relevant payments. Use the Fair Work Pay and Conditions Tool and the applicable instrument to check assumptions.
A higher agreed hourly rate is not automatically an overpayment. Likewise, leave, bonuses, reimbursements or termination amounts need their own treatment; an ordinary-hours calculation may not explain them.
Keep: the entitlement basis, rate effective dates, employment terms and reasons for excluding any payment from the comparison. Refer uncertain coverage, salary and offset arrangements for qualified advice.
CHECK 04
Trace the likely cause.
Test the explanation against the records rather than choosing the most convenient reason.
- Duplicate export: one payment appears twice because overlapping files were imported. Compare unique payroll and payment references.
- Duplicate payment: a pay run or bank file may have been processed twice. Confirm both transactions actually settled and check for a reversal.
- Hours mismatch: paid hours exceed the time record. Check amended timesheets, paid breaks and minimum engagements before calling hours “extra”.
- Rate or pay-code mismatch: check the agreed rate and which loadings or penalties are already included in it.
- Adjustment or extra entitlement: trace back pay, an allowance, a bonus or another approved amount to its source.
- Incomplete comparison: collect the full week, fortnight or roster cycle where the calculation requires it.
Keep: evidence for the proposed cause, any competing explanation and the facts still missing.
WORKED EXAMPLE
The same difference.
A different explanation.
A $60 difference to investigate.
Assume eight verified ordinary payable hours at an agreed $30.00 per hour, with no additional current-period entitlement. The pay run records $300.00 in gross earnings. The rate is invented for illustration, not a published Award rate.
Explanation A — documented back pay: a separate $60.00 earnings line corrects earlier work. Current-period gross pay is $240.00. The extra amount has a documented purpose; verify the earlier entitlement separately.
Explanation B — unsupported extra hours: all $300.00 relates to ten ordinary hours in the current period. If the evidence establishes only eight payable hours and no other entitlement explains the difference, the $60.00 may be a genuine overpayment.
Both explanations require evidence. This calculation identifies a gross difference, not an amount to deduct or a repayment demand.
CHECK 05
Record a decision with evidence.
Use a review record that distinguishes what is known from what is unresolved. A useful working classification is:
- Explained payment: the amount is supported by an entitlement, agreed rate or documented adjustment.
- Data or allocation issue: the comparison contains duplication or the wrong period; correct the review data and rerun it.
- Possible overpayment: the evidence points to an error, but a material fact still needs confirmation.
- Confirmed payment error: the records and entitlement review establish the mistake and its amount; decide the response separately.
These are suggested worksheet labels, not a change to WageReview’s finding statuses. Record the reviewer, calculation, evidence references, open questions and next action.
Keep shortfalls visible too. Do not automatically net an apparent excess against an underpayment elsewhere. Use the underpayment checking guide to review shortages on their own evidence.
CHECK 06
Resolve a confirmed error carefully.
Share the calculation and evidence with the employee and allow them to raise missing information. Separate the decision that an error occurred from the legal basis for recovering it.
Fair Work advises employers and employees to discuss repayment. If repayment is agreed, document the reason, amount and a reasonable payment method and frequency. If agreement cannot be reached, obtain legal advice. See Fair Work’s overpayment guidance.
Do not assume you can deduct the amount from the next pay. Deductions are permitted only in limited circumstances; a repayment agreement or broad contract clause does not automatically make a deduction lawful. Check Fair Work’s deduction rules and the circumstances with a qualified adviser before taking action.
Have your payroll or tax adviser determine any repayment amount and required payroll, tax, superannuation or reporting adjustments. Give them the original payment date, relevant financial year and proposed correction date. A gross comparison alone cannot resolve those questions.
Correct the cause, retain an audit trail and check the next relevant pay run. Where a setting or process affected several employees, review the affected records rather than assuming a single correction solves the wider issue.
FROM A FLAG TO AN EXPLANATION
Where WageReview can help.
WageReview’s controlled demo compares recorded paid amounts with supported deterministic hourly-pay calculations. A positive difference can produce an overpayment or unexpected payment finding for human review, with pay segments and source evidence to investigate.
Represented outcomes cover the Retail, Hospitality and Restaurant Awards for casual, part-time and hourly full-time employees. New audit periods must start on or after 1 July 2025. Complete period and arrangement evidence is needed for some calculations.
The finding does not establish an employee debt or confirm a bank transaction. WageReview does not establish legal Award coverage, reconcile salaries or calculate tax, superannuation, leave or termination pay. Production use is not approved, and it does not recover money or automatically correct payroll.
Common questions.
Does a positive payroll variance prove an overpayment?
No. It shows that the compared paid amount exceeds the expected amount under the facts and scope used. Check the comparison and supporting evidence before deciding why.
Can I deduct an overpayment from the next pay?
Do not assume that you can. The applicable deduction rules and circumstances must permit it. Review Fair Work’s guidance and obtain advice where the basis is unclear.
What if the employee disagrees with the calculation?
Provide the records and entitlement basis, invite their explanation and keep disputed facts open. Obtain legal advice before trying to recover a contested amount.
Should the repayment equal the gross difference?
Do not use the gross variance alone as a repayment amount. Ask a payroll or tax adviser to establish the correct treatment for the payment dates and circumstances.
Can an employee use this checklist?
Yes. Ask which payment, dates and entitlement the employer’s calculation covers. Compare it with your pay slips, work records and agreed pay terms, and seek advice before agreeing to a disputed recovery.
Official sources and related guides.
- Fair Work: Overpayments
- Fair Work: Deducting pay
- Fair Work: Pay and Conditions Tool
- How to Check for Payroll Underpayments in Australia
- Payroll audit data checklist
General information for payroll review in Australia. Not legal or tax advice. Confirm the applicable workplace-relations system and obtain advice for the particular circumstances.