Use an allowance
Maintenance and repairs are uncertain; use a defensible reserve based on the exact truck and inspection.
DIESEL TRUCK TOOL
Diesel Truck Ownership Cost Calculator
Combine financing, fuel and annual allowances into a planning estimate using your own assumptions.
Annual planning assumptions
Separate business questions
Ask qualified tax and accounting advisers about business-use treatment.
Revisit the estimate
Update assumptions after quotes, inspection findings and real fuel records become available.