Track business mileage
Log business trips and automatically calculate mileage reimbursement.
3 minUpdated 8 June 2026
Add a trip
- Go to Expenses → New expense.
- Choose type Trip.
- Enter departure point, destination, and number of kilometres.
- Declair calculates the amount based on your mileage rate.
- Optionally add a description (e.g. "Client visit Acme BV").
Set mileage rate
Under Settings → Tax you set the rate per kilometre. Declair uses the standard Dutch tax rate by default, but you can set a custom rate if agreed with your accountant.
Business vs. private
Only business trips are deductible. Note the business purpose for each trip. In an audit, the tax authority expects a complete mileage log.
Export
Trips appear in your expense overview and are included in VAT and annual reports. Export via Settings → Import/Export as CSV or Excel.
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