How GPS Reports Improve Job Costing for Mobile Workforces

For companies with technicians, contractors, installers, drivers, or equipment moving between customer locations, accurate job costing can be difficult. Employees may visit several sites in one day, vehicles accumulate both billable and non-billable mileage, and equipment may operate for different lengths of time at each project.

Job order costing tracks the labour, materials, and overhead associated with an individual job. GPS reports cannot calculate every component of that cost, but they can provide reliable operational data about where vehicles went, how long they stayed, how far they travelled, and how long engines or equipment operated.

When this information is matched with job numbers, payroll records, invoices, and established cost rates, businesses can create more accurate job cost records and make better decisions about pricing, scheduling, and resource allocation.

Why Mobile Job Costing Is Difficult

Job costing depends on assigning expenses to the correct customer, work order, or project. This becomes more complicated when employees and vehicles work away from a fixed facility.

A handwritten time entry might state that a technician worked eight hours, but it may not distinguish between time at the customer’s property, travel between jobs, time at a supplier, and unplanned stops. Likewise, a vehicle’s monthly odometer reading shows total distance but does not explain which projects generated that mileage.

These gaps can cause businesses to understate the cost of travel, allocate too much labour to one project, overlook non-productive time, or submit invoices that are difficult to verify. Wialon’s fleet reporting capabilities help organize movement, mileage, stops, geofence visits, and engine-hour data into records that can support the costing process.

Verify When Vehicles Arrive at and Leave Jobsites

A geofence is a virtual boundary created around a location such as a customer property, construction site, warehouse, branch, or equipment yard. When a tracked vehicle enters or leaves that area, Wialon can record the event.

A Wialon geofence report can include entry time, exit time, visit duration, mileage within the area, and other available information. This creates an objective record of when the vehicle reached the jobsite and how long it remained there.

For job costing, geofence data can help managers:

• Compare reported site hours with vehicle arrival and departure times
• Confirm that activity was assigned to the correct customer or project
• Identify repeated visits that may increase the total cost of a job
• Review time spent at yards, warehouses, or supplier locations
• Investigate unusual differences between scheduled and actual site time

Geofence duration should not automatically be treated as employee labour time. A vehicle may arrive before work begins, remain at the site during a break, or leave while another employee continues working. Instead, the report should be used to verify and clarify submitted timesheets.

Separate Travel Time from Time at the Jobsite

Travel is a significant cost for mobile workforces, but it is often combined with productive labour or distributed across projects using rough estimates. GPS reports make it easier to separate the workday into distinct intervals.

The Wialon Trips report can show movement intervals with their beginning and end times, locations, duration, mileage, assigned driver information when available, and other supported parameters. Managers can use these records to determine how much travel occurred before, between, and after customer visits.

Once travel has been identified, the business can apply its own policy. Travel might be billed directly to a customer, included in a service-call fee, divided between several jobs, or treated as overhead. GPS data supplies the time and distance evidence, while the company’s accounting policy determines how the resulting cost is classified.

Allocate Vehicle Mileage More Accurately

Charging every job the same amount for vehicle use can distort profitability. A nearby service call and a remote project may require similar labour but generate very different transportation costs.

Trip reports can help associate mileage with specific jobs by showing the distance travelled to and from known locations. If a company has an established vehicle cost per kilometre or mile, it can apply that rate to the supported project mileage.

For example, if a vehicle travels 48 kilometres for a job and the company’s approved internal vehicle rate is $0.70 per kilometre, the allocated vehicle cost would be:

48 km × $0.70/km = $33.60

The cost rate may include selected expenses such as depreciation, insurance, maintenance, registration, and operating costs, depending on the company’s accounting method. Wialon provides the mileage input, but the business or its accountant should establish the appropriate rate.

Historical mileage reports can also improve future estimates. If similar projects repeatedly require more travel than expected, estimators can update service areas, minimum call-out charges, or bid assumptions.

Support Labour Allocation with Work-Hour Records

Labour is often one of the largest costs for field-service businesses. Small errors in assigning hours can materially affect the reported profitability of a job.

When drivers are properly identified and assigned, Wialon’s driver assignment reporting can show the beginning, end, and duration of work shifts, along with the unit used and distance travelled. Timesheet and work-hours reports can then support comparisons between recorded shifts, vehicle activity, and jobsite visits.

A practical review might compare:

1. The employee’s submitted hours
2. The assigned vehicle’s shift information
3. Geofence arrival and departure records
4. Trips made between customer locations
5. Stops or gaps requiring explanation

This process can identify simple mistakes, such as charging travel to the wrong project or forgetting to record a second site visit. It can also give supervisors a documented basis for resolving discrepancies before information is sent to payroll, billing, or accounting.

GPS-derived work-hour information should be reviewed according to applicable employment rules, privacy requirements, company policies, and collective agreements. It should support approved timekeeping procedures rather than automatically replacing them.

Attribute Equipment Use Through Engine Hours

Mileage is not always the best cost driver for service trucks, construction equipment, generators, or other powered assets. Some equipment can operate for hours while travelling very little.

A Wialon Engine Hours report can show how long a supported unit operated, subject to compatible hardware, sensors, and correct system configuration. Businesses can use these hours to allocate an established equipment rate to the appropriate project.

For example:

6.5 engine hours × $45 per equipment hour = $292.50

An hourly equipment rate may be designed to recover depreciation, maintenance, financing, insurance, and other ownership or operating expenses. Comparing engine hours with geofence visits can help determine whether equipment use occurred at the expected project location.

This approach is especially valuable when equipment usage represents a substantial part of the true job cost.

Find Unplanned Stops and Non-Productive Time

Not every paid hour or vehicle movement contributes directly to a customer’s project. Unexpected stops, long gaps between appointments, and extended stationary periods can increase the cost of completing a job.

The Wialon Stops report can show when and where stops occurred, their duration, coordinates, and assigned driver when available. Idling and after-hours reports can provide additional context about vehicle activity outside expected working patterns.

These reports can help managers identify:

• Recurring delays at particular locations
• Excessive time between scheduled jobs
• Additional supplier or warehouse visits
• Vehicle use outside assigned working hours
• Stops that were charged to the wrong project
• Scheduling practices that create avoidable downtime

The goal is not to assume that every stop is wasteful. Breaks, loading, inspections, customer conversations, and safety procedures may all be necessary. The report provides a starting point for understanding why the time occurred and how it should be classified.

Compare Estimated Activity with Actual Results

GPS reporting becomes particularly valuable when estimated assumptions are compared with actual field activity. A bid may assume one technician visit, two hours on site, 30 kilometres of travel, and three equipment hours. After the work is completed, reports may show two visits, three and a half hours at the location, 52 kilometres of travel, and five engine hours.

That variance can reveal why the project earned less than expected. Possible causes might include an incomplete original estimate, an unexpected return visit, inefficient scheduling, additional customer requirements, or incorrect allocation of employee time.

Reviewing these differences helps businesses:

• Improve future quotes and service-call pricing
• Identify jobs that regularly require return visits
• Set more realistic travel and equipment allowances
• Recognize customers or locations with higher service costs
• Measure actual margins more confidently
• Find operational issues before they become recurring losses

Build a Repeatable GPS-Based Job Costing Workflow

Consistent processes are more useful than occasional report reviews. A practical workflow can include the following steps:

1. Assign a unique job number to each customer project.
2. Create clearly named geofences for active jobsites and regular operational locations.
3. Confirm that vehicles, equipment, and drivers are identified correctly.
4. Generate reports for the same daily, weekly, or billing-period intervals used by accounting.
5. Match geofence visits, trips, mileage, work hours, stops, and engine hours to the correct job.
6. Apply company-approved labour, vehicle, equipment, and overhead rates.
7. Reconcile the results with employee timesheets, material records, purchase receipts, and customer work orders.
8. Compare estimated and actual activity before closing the job.

Wialon reports can be exported to supported file formats, making it easier to review the information in spreadsheets or retain it with project documentation. Reports can also be scheduled for email delivery, helping operations and accounting teams follow a consistent review schedule.

GPS Reports Support Better Cost Decisions

GPS reports improve job costing by replacing assumptions about field activity with organized records of location, time, distance, stops, work intervals, and equipment operation. When these records are reconciled with approved timecards, material costs, accounting policies, and established cost rates, businesses can understand the actual resources required to complete each job.

Forall Tracking can help configure Wialon reports around your vehicles, jobsites, drivers, and equipment. To learn how GPS reporting can support more accurate costing for your mobile workforce, contact us.