Timesheet to Payroll Sync Explained for Construction

A timesheet to payroll sync moves approved hours, job codes and allowances into payroll without entering them again. Payroll then applies the worker’s pay rules, while job costing sends the labour cost to the right project, stage or cost code.

What actually moves from the timesheet

Think of the timesheet as the record of what happened on site. It should show enough detail for payroll and job costing to do their separate jobs.

A useful construction timesheet normally includes:

• employee or contractor identifier
• date and start and finish times
• unpaid break duration
• project, site or job number
• cost code, activity or stage
• ordinary, overtime or shift hours, where workers select these
• allowances or units, such as meals, kilometres or site days
• leave or absence details
• supervisor approval and any edit history

The sync converts those fields into payroll inputs. For example, Jack records 6:30am-3:00pm with a 30-minute unpaid break. That gives payroll 8 paid hours before award, enterprise agreement or employment contract rules are applied.

The important bit is that the field record and the pay calculation are not always the same thing. A timesheet might record raw start and finish times. Payroll may still need to identify ordinary time, overtime, RDO accrual, shift penalties and allowances.

How the sync works step by step

1. The worker records time

The worker enters time against a job and cost code. A mobile entry can also capture who submitted it, when it was submitted and whether the person was at the expected site.

Location data should support a time record, not replace it. A phone being near a site does not prove that the employee worked every minute they were there.

2. A supervisor checks the entry

The supervisor checks the hours against site records, rosters and actual work completed. They also check the job code. Payroll should not have to guess whether eight hours belong to excavation, formwork or defects.

Rejected entries go back for correction. Approved entries become locked, or any later change is recorded in an audit log.

3. Employee and pay codes are matched

The sync matches the timesheet worker to the payroll employee record. It also maps timesheet items to payroll codes.

For example:

• ordinary hours map to ordinary earnings
• overtime hours map to the applicable overtime code
• kilometres map to a vehicle allowance code
• unpaid leave maps to an unpaid absence code
• site and activity codes map to job costing dimensions

A failed match should create an exception. It should not quietly drop the entry or place it into a general wages bucket.

4. Payroll rules are applied

Payroll applies classifications, rates and conditions. In construction, that may involve an award, an enterprise agreement, an individual employment contract or a combination of instruments.

The Building and Construction General On-site Award is based on an average of 38 ordinary hours a week for covered full-time employees, as at September 2026. How those hours are arranged, and when overtime begins, depends on the applicable provisions and work pattern.

The super guarantee rate is 12% of ordinary time earnings, as at September 2026. Employees under 18 generally need to work more than 30 hours in a week to qualify for compulsory super, as at September 2026. Check the earnings classification because not every payroll item forms part of ordinary time earnings.

5. Payroll is reviewed and posted

Before finalising the pay run, payroll checks totals, exceptions and unusual movements. Once approved, the system produces pay records, payment information, accounting entries and job cost data.

Fair Work employee records generally need to be kept for 7 years, as at September 2026. A pay slip must generally be issued within 1 working day of pay day, as at September 2026. The sync and its audit history should support those records rather than overwrite the original evidence.

Manual entry compared with a connected process

Checkpoint	Manual re-entry	Timesheet to payroll sync
Hours	Payroll types approved hours again	Approved hours are imported
Job codes	Often added in a spreadsheet or journal	Codes move with each time entry
Pay rules	Payroll interprets notes and totals	Mapped items feed configured rules
Corrections	Email, paper and spreadsheet changes	Exceptions and edits can be logged
Job costs	May be posted after payroll	Labour costs can be allocated during posting
Main risk	Typing errors and missing detail	Incorrect mappings or unreviewed rules

A sync removes repeated typing, but it does not remove payroll responsibility. If the mapping is wrong, the same mistake can affect many employees at once. That is why testing and exception reports matter.

Where job costing fits

Payroll answers, “What must this worker be paid?” Job costing answers, “Which job used the labour, and what did that labour cost us?”

Those figures are related, but they are not identical. Gross wages are only one part of labour cost. Depending on the business and reporting method, job cost may also include:

• employer super
• leave accruals
• workers compensation premiums
• payroll tax
• training levies or other employer costs
• allowances attached to a particular site

Payroll tax thresholds and rates differ between Australian states and territories. Workers compensation premiums also depend on the scheme, classification and claims experience. These should be maintained as costing rules, not guessed from the worker’s take-home pay.

If one employee works across three projects in a day, their approved hours should be split before the pay run closes. A vague “general labour” entry may pay the employee correctly but leave the project reports wrong.

For more on labour allocation and cost codes, see the construction job costing guide. When comparing the cost of setup with the time spent correcting payroll and project reports, use the assumptions in the Project Payroll pricing tool.

Checks to run before every pay run

Start with four basic reconciliations:

1. Total approved timesheet hours against total imported payroll hours.
2. Employee totals against expected rostered or contracted hours.
3. Job and cost code totals against all imported hours.
4. Gross wages and employer costs against the job costing export.

Then review exceptions. Look for missing employees, duplicate entries, zero-hour shifts, unusually long days, missed breaks, work on weekends or public holidays, and changes made after approval.

Also compare this pay run with the previous one. A sharp drop in overtime may be correct, but it deserves a look. The same goes for a worker suddenly charged entirely to one project.

Common setup mistakes

The first mistake is mapping a site label directly to a payroll earning. A job tells you where work happened. It does not necessarily tell you whether the time was ordinary, overtime or subject to a penalty.

The second is letting workers choose from too many pay codes. Site teams usually need clear activity and allowance options. Payroll should control technical earning codes unless there is a good reason not to.

The third is rounding too early. Keep the original start, finish and break record. If rounding is permitted and used, apply a documented rule and retain the source entry.

The fourth is ignoring changes. New classifications, agreement updates, allowance changes and new project codes can break an old mapping. Review mappings whenever employment conditions or site structures change.

A practical way to set it up

Pilot the sync with one crew, one pay cycle and a small group of job codes. Run the imported payroll beside the existing process. Compare each employee’s hours, gross pay, super and job allocation.

Do not test only the easy week. Include overtime, an allowance, leave, a split shift across jobs and a corrected timesheet. Once both payroll and project teams agree on the results, expand the setup in controlled stages.

The goal is simple: one approved record of time, correct pay, and labour costs attached to the work that caused them.