21/09/2026
One of my most popular tax tips is already out of date. 😅
When I shared my mileage example earlier this year, 45p per mile was correct.
From 6 April 2026, the simplified mileage rate for cars and goods vehicles increased to:
55p per mile for the first 10,000 business miles
25p per mile above 10,000 miles.
So the old example:
5,000 business miles × 45p = £2,250
now becomes:
5,000 business miles × 55p = £2,750
That’s £500 more deductible mileage expense in this example.
A good reminder that tax advice always needs a date attached to it.
Save this updated version if you use simplified mileage for your business. 📌
This applies to simplified mileage. Different rules can apply if you use actual vehicle costs instead.