A deduction gets disallowed on record-keeping far more often than on the driving itself. For each trip you claim you generally need the date, where you went, the business reason, and the miles — and you need it written down at or near the time of the trip, not reconstructed from memory a year later. MileLedger asks for exactly those four things and nothing more.
You can type the miles straight in, or enter the odometer reading at the start and end and let the app subtract. Odometer readings make a stronger record because they tie the trip to the vehicle, but plain mileage is accepted.
Constant GPS is the single biggest complaint about tracking apps: it flattens your battery, it follows you on personal time, and it needs a company server to store the trail. MileLedger is deliberately manual and local. Save your regular runs as one-tap buttons and a week of logging takes under a minute.
This app calculates the standard mileage method. The other route is actual expenses — fuel, insurance, repairs, depreciation — which sometimes gives a bigger deduction for expensive vehicles. Which suits you is a question for your tax preparer, and there are rules about switching between the two.
MileLedger records what you drove and multiplies it by a rate you enter. It does not know your circumstances and cannot tell you what you are entitled to claim. Confirm the current rate at irs.gov and check anything unusual with a professional.