Common EBA Payroll Mistakes Builders Make

The most common EBA payroll mistakes are using the wrong agreement, misclassifying workers, missing rate increases, calculating overtime incorrectly, and overlooking allowances, RDOs or minimum weekly super clauses.

None of those errors looks dramatic on one payslip. Across 50 workers and six months, though, the back pay can get ugly.

An enterprise bargaining agreement, usually called an EBA on site, sets rules for the employees and work it covers. The award, National Employment Standards, super law and employment contract can still matter. The trick is knowing which rule applies to each part of the pay.

For more background, start with the EBA payroll guide for construction.

Statutory rules and EBA rules are not the same

An EBA often gives workers better rates or conditions than the underlying award. It may also use its own classifications, ordinary hours, rostered days off, allowances and overtime rules.

Here is a quick comparison.

Payroll item	Statutory starting point	What the EBA may change or add
Weekly hours	As at September 2026, the NES maximum is 38 hours for a full-time employee, plus reasonable additional hours	A shorter ordinary week, roster cycles, RDO accrual or project-specific starting times
Annual leave	As at September 2026, the NES provides 4 weeks, or 5 weeks for certain shiftworkers	Leave loading, additional leave or rules for calculating ordinary pay during leave
Superannuation	As at September 2026, the statutory SG rate is 12% of ordinary time earnings, subject to the applicable legal rules	A higher contribution, minimum weekly amount or contributions on a broader earnings base
Payslips	As at September 2026, a payslip must generally be provided within 1 working day of payday	Extra information may be needed to explain RDOs, allowances or agreement entitlements
Payroll records	As at September 2026, employee records generally need to be kept for 7 years	Site and time records may be needed to prove EBA calculations

Treat those statutory figures as the floor or starting point, not the complete payroll instruction.

1. Applying the wrong EBA

First, confirm that the agreement actually covers the employer, employee and work.

A builder may have several entities, projects or labour arrangements. An agreement covering one company does not automatically cover a related company. A project agreement may also have different rules from the agreement used by head office or another site.

Check the agreement’s coverage, classifications, commencement date, nominal expiry date and any variation. Nominal expiry does not usually mean the agreement simply disappears. It can continue operating until it is replaced or terminated under the Fair Work Act.

2. Missing scheduled rate increases

Construction EBAs often contain rate tables with increases on fixed dates. Payroll teams sometimes update the base hourly rate but miss connected amounts.

The higher rate may also affect overtime, leave, RDO payments, site allowances, fares, shift penalties and super. Whether it affects an item depends on the wording of that clause.

Keep a register of future increase dates. Before each increase, list every payroll item linked to the base rate. Do not assume changing one figure updates the lot.

If an increase is loaded late, calculate back pay from the EBA’s effective date, not from the date someone noticed it.

3. Using the wrong classification

Paying everyone as a generic labourer is asking for trouble.

Classification depends on the duties actually performed, along with qualifications, licences, trade status, responsibility and sometimes experience. A worker’s job title is useful evidence, but it is not the whole test.

Apprentices need extra care. Their rate can depend on the trade, year or stage, age, prior schooling and whether they are an adult apprentice. Record progression dates before they arrive. Waiting for the apprentice to complain is not a payroll control.

Ask the site supervisor to confirm duties when a worker changes crews or starts operating different plant. Payroll cannot classify work it never hears about.

4. Getting ordinary hours, overtime and RDOs mixed up

An EBA may use a 36-hour ordinary week while workers are paid for a longer attendance pattern and accrue time towards an RDO. Another agreement may use a different cycle.

Common errors include:

• accruing too many or too few RDO hours
• treating an RDO accrual component as an extra cash payment
• starting overtime after 38 hours when the EBA sets an earlier trigger
• missing daily overtime because total weekly hours look ordinary
• paying the wrong rate when work starts before or finishes after the ordinary span
• forgetting special rules for Saturdays, Sundays and public holidays

Build the rule from the actual clause. Check daily triggers, weekly triggers, minimum engagements and whether penalties are cumulative, substituted or paid at the higher rate only.

5. Treating every allowance the same way

Allowances can be taxable or non-taxable, included or excluded from overtime, and included or excluded from ordinary time earnings for super. The label in payroll does not decide the treatment.

Construction agreements may include site, industry, tools, travel, fares, meal, first aid, height or disability allowances. Some are paid for every ordinary hour. Others apply only when a condition is met.

A classic mistake is adding an allowance to ordinary pay but leaving it out of overtime when the EBA says it is all-purpose. The reverse mistake is loading every allowance into overtime without checking the clause.

Create a rule sheet for each allowance. Record who gets it, when it starts, when it stops, and whether it affects overtime, leave and super.

6. Assuming 12% super settles the question

The statutory percentage is not always the full EBA entitlement.

Some construction agreements require a minimum weekly super contribution. That can matter when a worker has unpaid leave, wet weather downtime, a short week or low ordinary time earnings. Other agreements require contributions on amounts that would not normally form part of statutory ordinary time earnings.

Compare the statutory calculation with the agreement calculation for each pay period. If the EBA requires the higher amount, pay the higher amount. The minimum weekly super calculator and clause guide can help with that check.

7. Ignoring site records

Payroll is only as accurate as the information coming off site.

Timesheets should show start and finish times, breaks, site location, work type, RDO time, travel and the reason for relevant allowances. A single total such as “10 hours” may not tell payroll whether there was early-start overtime, a missed break or work outside the ordinary span.

Do not rely on a supervisor’s memory three months later. Keep approvals and corrected timesheets with the payroll record.

8. Making quiet deductions or offsets

A salary, site payment or over-award rate does not automatically cancel separate EBA entitlements. An offset needs a sound legal and contractual basis. You also need calculations showing that the worker received at least what was due for the relevant period.

Deductions need equal care. Do not deduct tools, accommodation, damage, training or an accidental overpayment just because the business believes the money is owed. Check the Fair Work rules, the EBA and any valid written authorisation first.

A practical pre-pay checklist

Before releasing a construction pay run, check:

1. The correct employer entity and EBA are attached to each worker.
2. Classifications and apprentice stages are current.
3. The latest rate increase has been applied to linked items.
4. Daily and weekly overtime triggers have both been tested.
5. RDO accrual agrees with hours worked and leave taken.
6. Allowances match the site conditions and clause wording.
7. Statutory super has been compared with any EBA minimum.
8. Exceptions are supported by timesheets and approvals.

If you find an error, fix the rule first. Then calculate the affected periods, pay the shortfall promptly, correct super where required, and give the worker a clear written breakdown. That is far better than letting the same mistake roll into another pay cycle.