Business mileage deduction and allowance calculator

US — 2026

US: business-mileage deduction for eligible self-employed people and businesses. This amount is a deduction, not tax savings; most employees cannot claim unreimbursed business mileage. January–June uses USD 0.725 per mile and July–December uses USD 0.76 per mile.

Rates reviewed: 2026-09-30. Supported period: 2026. Official rate source

UK — 2026/27

UK: approved car mileage allowance for business journeys during 6 April 2026–5 April 2027. The first 10,000 miles use GBP 0.55 per mile; remaining miles use GBP 0.25. This allowance is not a tax refund.

Rates reviewed: 2026-09-30. Supported period: 2026/27. Official rate source

Canada — 2026

Canada: prescribed employee automobile allowance for 2026. The first 5,000 business kilometres use CAD 0.73 per kilometre; remaining kilometres use CAD 0.67. Territories have higher rates than provinces. This is not a universal self-employed deduction.

Territory: CAD 0.77 / 0.71

Rates reviewed: 2026-09-30. Supported period: 2026. Official rate source

How are totals and forecasts calculated?

Actual mode uses recorded business distance. Forecast mode multiplies business distance per trip by your explicit trip count for each applicable period. Forecasts are projections, not mileage records. Final currency amounts are rounded to two decimal places.