Opening business mileage
Before starting to claim using MyExpensesOnline you need to set your current business mileage as the rate paid for mileage will be calculated from this value going forward within the tax year.
To do this you first need to do is setup your vehicle, the link below will help with this.
Adding your vehicle with DVLA checks
When creating your first claim the first line needs to be your opening mileage, to set this and make sure a value is not attached please use the Mileage category called ‘Opening balance mileage’.