Going A2B information for accountants and bookkeepers
Going A2B is designed around HMRC's published business mileage rates and record-keeping guidance.
What Going A2B records
- Date and time — recorded for each journey
- Start and destination — including location and postcode
- Business purpose — the user's stated reason for the journey
- Vehicle used — car, van, motorcycle or bicycle
- Odometer readings — start and finish mileage
- Photo evidence — supporting odometer photographs
- Business mileage — calculated from the recorded journey
- Tax-year mileage — cumulative car/van mileage tracked across the tax year
- 10,000-mile threshold — journeys crossing the threshold are automatically split between the applicable rates
- Previous business mileage — users joining part-way through a tax year can enter earlier qualifying car/van business mileage
- Passenger allowance — recorded separately where the relevant conditions are confirmed
- Reports — recorded journey information and mileage calculations are brought together for review and export
Current mileage calculations
Rates shown apply to the current tax year. Rates may change if HMRC revises its published figures.
The car and van threshold is shared across all cars and vans used by the same user in the same tax year — it is not reset for each individual vehicle.
What Going A2B does — and doesn't do
Going A2B records the journey information provided by the user, retains supporting evidence and applies the relevant mileage calculations.
Going A2B does not decide whether a journey or mileage is an allowable claim.
The individual — or their accountant or tax adviser — remains responsible for deciding whether the recorded journey and mileage qualify for tax relief, reimbursement or other tax treatment.
The fact that a journey has been successfully recorded by Going A2B does not itself mean that the journey or mileage is an allowable claim.
Going A2B does not provide individual tax advice.
Keeping your records
Going A2B takes reasonable measures to safely store journey records while the service is available, but users should not rely on Going A2B as their only long-term copy of their records.
Users should regularly download their mileage reports and safely retain their own copies for the period applicable to their circumstances.
HMRC record-retention requirements can vary depending on the individual, business and type of return, and those requirements may change. Users should check the current HMRC guidance or speak to their accountant or tax adviser where appropriate.
The user remains responsible for retaining the records they require.
HMRC guidance
The links below go directly to official GOV.UK pages. These links do not imply any HMRC endorsement of Going A2B.
Mileage allowance payments — approved amounts
GOV.UK · HMRC Employment Income Manual — approved mileage rates for cars, vans, motorcycles and bicycles
Business travel mileage — rules for tax
GOV.UK · Overview of the rules for mileage allowance payments and approved amounts
Mileage records and evidence
GOV.UK · HMRC guidance on the records required to support a mileage allowance claim
Self Assessment record keeping
GOV.UK · How long to keep records for Self Assessment purposes
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Going A2B can be used by clients who want a simple way to create consistent business mileage records and provide those records for review. Clients can download their mileage reports and journey evidence at any time.
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Record your business journeys as they happen and build your Mileage Log as you go.
This page is for information only. Going A2B does not provide tax advice. Always check current HMRC guidance or speak to a qualified adviser.