Construction Payroll Without the Spreadsheets: A Practical Guide

Construction payroll has two problems that most payroll software is not built to handle.

First, the hours are unpredictable. A roofer working in good weather might put in 60 hours one week and 30 the next. A multi-trade project might have five different crew types all working different shifts, paid at different rates.

Second, the data collection is fragmented. Hours live in WhatsApp messages, paper time sheets, and a spreadsheet someone "updates on Friday." By the time payroll runs, you're reconciling three different sources and hoping the numbers add up.

How construction payroll actually works

Before you can run payroll, you need three things for each worker:

1. Hours worked — either exact start/finish times or attendance (present/half-day/absent)
2. Rate — daily rate, hourly rate, or fixed weekly wage
3. Deductions — tax, health insurance, pension contributions, advance repayments

Most construction businesses handle workers in at least three categories: direct employees, casual workers, and subcontractors. Each is treated differently for tax and payment purposes, and mixing them up creates compliance problems.

The attendance vs timeclock question

For most site crews, daily attendance is more practical than hourly timekeeping. You know who showed up and whether they worked a full day. Con-trak's attendance log handles this: mark workers as present, half-day, or absent, and costs calculate automatically at each worker's daily rate.

For jobs where hours genuinely matter — overtime-heavy projects, hourly-rated foremen — the timeclock mode logs exact start and finish times for precise calculation.

Where payroll goes wrong on construction sites

The most common payroll errors on construction sites:

• Undercounting hours because someone forgot to log the Thursday afternoon session
• Overpaying casual workers who should have been marked half-day
• Missing subcontractor hours because they were tracked separately and the spreadsheet columns got out of sync
• Incorrect rates because a rate change was communicated verbally and the spreadsheet wasn't updated

The common thread is manual data entry across multiple sources, reconciled under time pressure.

Con-trak's payroll workflow

Con-trak turns daily attendance into payroll in four steps:

1. Log daily. Your supervisor marks attendance from their phone at the start of each shift. Each worker's rate is already stored — no lookup required.
2. Review weekly. Open Reports → Payroll. You see every worker, their hours or attendance for the week, their rate, and the calculated gross pay.
3. Adjust if needed. Any corrections are made directly against the log entry, not a separate payroll record. The payroll summary updates immediately.
4. Export. Download the payroll summary as a PDF or CSV, ready for your accountant or to transfer directly to your bank.

Subcontractors are different — track them separately

Subcontractors are not employees. They invoice you; you don't run payroll for them. But their labour cost still hits your project budget, and you still need to verify what they logged against what they billed.

Con-trak tracks subcontractors as a separate category in the labour log. Their hours or attendance are recorded the same way as direct workers, but they appear as a separate line in your cost reports — so you can cross-check their invoice against what you actually logged.

The payroll discipline that saves money

The single biggest payroll saving for most construction businesses is not a better calculation — it's earlier data. When your site manager logs attendance daily rather than reconstructing it from memory on Friday, you catch errors before they become payments. A half-day that slipped through as a full day costs you money. A no-show that gets paid costs you money and undermines team trust.

Daily logging closes that gap. The data is there when payroll runs because it was captured when it happened.