How Commonwealth Bank Underpaid Workers $16.07 Million: Technical Breakdown
"Serious contraventions" -- knowingly and systematically breaching the Act -- attract tenfold penalty increases. CBA's breaches were classified as serious.
When Australia's largest bank cannot get payroll right, it tells you something important about the complexity of the system. Between 2015 and 2021, the Commonwealth Bank of Australia (CBA) and its subsidiary CommSec underpaid 7,402 employees a total of $16.07 million. The Federal Court found some of the breaches were "serious contraventions" -- committed knowingly and systematically.
This was not a franchise operator cutting corners. This was one of Australia's Big Four banks, with a market capitalisation exceeding $200 billion, sophisticated HR systems, and an army of lawyers. If CBA can get it wrong, any employer can.
What Happened
CBA used Individual Flexibility Arrangements (IFAs) and enterprise agreements to structure pay for thousands of employees. These arrangements were supposed to leave employees better off overall compared to the applicable enterprise agreement. They did not.
Timeline
- 2015-2021: Underpayments occurred across CBA and CommSec workforce
- 2020: CBA self-reported non-compliance to the Fair Work Ombudsman
- 2021-2023: Full investigation and remediation program
- February 2024: Federal Court imposed record $10.34 million penalty ($7.31M against CBA, $3.03M against CommSec)
The Numbers
| Metric | Detail |
|---|---|
| Employees affected | 7,402 |
| Total underpayment | $16.07 million |
| Period | 2015 -- 2021 |
| Penalty (CBA) | $7.31 million |
| Penalty (CommSec) | $3.03 million |
| Total penalty | $10.34 million |
| States affected | Every state and territory |
The Technical Failure
CBA treated the Better Off Overall Test (BOOT) as a point-in-time test at IFA signing, not as a continuous obligation. When working patterns changed, employees were no longer better off.
CBA's underpayment had multiple technical causes, all rooted in how flexibility arrangements were implemented without adequate compliance checks.
How Individual Flexibility Arrangements Work
Under the Fair Work Act, employers and employees can agree to an IFA that modifies certain terms of an enterprise agreement. The key legal requirement is that the employee must be better off overall (the BOOT test) compared to what they would receive under the enterprise agreement alone.
CBA used IFAs to offer employees a higher base salary in exchange for simplifying their pay structure. The IFA would remove or modify entitlements such as:
- Rostered days off (RDOs)
- Overtime payments
- Annual leave loading
- Specific allowances
What Went Wrong
The fundamental failure was that CBA did not put adequate checks and safeguards in place to ensure the IFAs actually left employees better off. Specifically:
1. The BOOT was not continuously monitored. An IFA might leave an employee better off when it is first signed (based on expected working patterns), but working patterns change. An employee who starts working more overtime, weekends, or public holidays may no longer be better off under the IFA. CBA did not track this.
2. Enterprise agreement entitlements were omitted without adequate compensation. The IFAs stripped out entitlements like RDOs, pay increases, and allowances in exchange for a higher salary and bonuses. But the higher salary did not always cover the value of the removed entitlements, particularly when actual hours were factored in.
3. Systematic implementation errors. Some breaches were classified as "serious contraventions" -- meaning they were committed knowingly and systematically. This attracted a tenfold increase in the applicable maximum penalty.
Example of How the BOOT Failed
Consider a CBA employee under an enterprise agreement entitled to:
- Base salary: $60,000
- 12 rostered days off per year (value: ~$2,800)
- Overtime at 150%/200%
- Annual leave loading at 17.5% (value: ~$1,200)
- Various allowances: ~$500/year
Total enterprise agreement value: ~$64,500
Under the IFA, the employee received:
- Higher base salary: $63,000
- Performance bonus (not guaranteed): up to $2,000
If the employee worked no overtime and hit the bonus, they might be marginally better off. But if they worked regular overtime (which many did), the enterprise agreement entitlements they gave up were worth more than the salary premium.
The critical error -- CBA treated the BOOT as a point-in-time test at the time of signing the IFA, not as a continuous obligation. When working patterns changed, the arrangement that was "better off" on paper became worse in practice.
How It Could Have Been Detected Earlier
Continuously compare actual earnings under an IFA against what the employee would have earned under the enterprise agreement -- recalculated every pay period. Do not rely on the assumptions used at signing time.
Automated Checks That Would Have Flagged the Problem
Continuous BOOT monitoring: An automated system that compared actual earnings under the IFA against what the employee would have earned under the enterprise agreement -- recalculated every pay period -- would have identified the gap immediately.
Entitlement tracking: Automated tracking of entitlements removed by the IFA (RDOs not taken, overtime not paid, leave loading not applied) with a running tally of the monetary value foregone.
Hours reconciliation: Cross-referencing actual hours worked against the assumptions used when the IFA was signed. If an employee was expected to work 38 hours but consistently worked 42+, the BOOT calculation changes.
Allowance validation: Automated checking that all applicable allowances under the enterprise agreement were either paid or adequately compensated through the IFA.
How AirComply Prevents This
Enterprise Agreement and IFA Compliance
AirComply can model both the enterprise agreement entitlements and the IFA terms, running a continuous comparison to ensure the BOOT is satisfied in every pay period -- not just at the point of signing.
Entitlement Gap Analysis
When an employer uses simplified pay structures (annualised salaries, IFAs, or set-off clauses), AirComply calculates the full entitlement the employee would receive under the base instrument and compares it to what is actually being paid. Any shortfall triggers an immediate alert.
Pay Period Reconciliation
AirComply performs the reconciliation that CBA failed to do: comparing the value of all entitlements under the applicable instrument against actual payments, for every employee, every pay period. This catches the problem when it is a $50 shortfall, not a $16 million one.
Systematic Compliance Reporting
AirComply generates compliance reports that would satisfy Fair Work Ombudsman scrutiny, documenting that every employee is receiving at least their minimum entitlements. This creates an audit trail that demonstrates good faith compliance -- the opposite of "serious contraventions."
Generate compliance reports that document every employee is receiving at least their minimum entitlements. This creates an audit trail that demonstrates good faith -- the opposite of "serious contraventions."
Key Takeaways
Complexity is not an excuse. The Federal Court explicitly rejected CBA's argument that payroll complexity mitigated liability. If anything, CBA was held to a higher standard because of its resources.
IFAs must be continuously monitored, not set-and-forget. The Better Off Overall Test is not a one-time calculation. Working patterns change, and the BOOT must be reassessed regularly.
Complexity is not an excuse. The Federal Court explicitly rejected the argument that payroll complexity mitigated CBA's liability. If anything, the court held CBA to a higher standard because of its resources.
Self-reporting reduces but does not eliminate penalties. CBA self-reported, cooperated fully, and still received a $10.34 million penalty -- a record at the time.
"Serious contraventions" multiply penalties tenfold. When the Fair Work Ombudsman can prove breaches were systematic and knowing, penalties increase dramatically. Automated compliance monitoring eliminates this risk entirely.
The bottom line -- If you use Individual Flexibility Arrangements, annualised salaries, or any structure that modifies enterprise agreement entitlements, you need continuous monitoring to ensure every employee remains better off overall. CBA had 7,402 employees fall through the cracks. How many of yours might be in the same position?
AirComply monitors award and enterprise agreement compliance in real time. Check your compliance now.