Tips for reconstructing your past mileage logs

What do you want to find out?


How do I start recording a retrospective mileage log? Should I go back to the first missed month or should I start with going backward from the present?

When reconstructing a mileage log, we recommend you proceed in chronological order.

This means that if, for example, the year 2018-2019 is missing, we recommend you start with January 2018 and make your way up to the present.

Following this order (past to present) is important because it is much to easier reconstruct your miles from the start than it is to try to track your miles back in time. An event that happened earlier in time always has an effect on events that happen later on in time.

What documents and data are needed to record a mileage log correctly?

  • Refueling / charging receipts
  • Odometer readings at refuelings / chargings
  • Trips before and after refuelings / chargings
  • Parking location details (e.g. receipts)
  • Vacation dates
  • Cash payment and/or wire transfer receipts that can show you where you were on that day
  • Service bills for the car that contain odometer readings at the time of service
  • Date and location of any possible fines
  • Odometer readings (it would be important to include the first and the current reading)

In what order should the data be recorded in the mileage log?

In the program, the menu layout is designed to guide the user.

You should go from top to bottom in the Basic data and Monthly trips tabs.


We advise you to enter the Basic data first.

After that, on the Monthly trips tab, enter the First odometer reading (if necessary), then the Workdays / Days-off, then Refuelings / Chargings.

Proceed with entering the Fixed trips (i.e. record trips connected to the data of parkings, speeding tickets, car-related bills, etc.) and then enter the End-of-month odometer reading.

If necessary, set your preferred vehicle usage parameters in the AdWise function settings, and following that, in the Finalization of trips, you can put the finishing touches on your mileage log.

If the entered and deductible distances match the IRS-proof mileage log is ready to be printed.

It’s important to know, that any entered monthly data can be edited or supplemented at any time, you can’t go wrong with MileageWise.

What can I do if I can’t recall (and/or do not have any substantiating documents about) my past odometer readings?

With the help of the end-of-month and refueling / charging odometer reading calculator, you can calculate how much the odometer reading could have been during the refuelings / chargings and at the end of the month.

It is important to note that the calculator is a help tool, it works with the data inputted, but it cannot take into account actual vehicle use and refueling / charging habits.

For example, if one’s refueling / charging habit is to empty the tank fully every time and to refuel to a full tank, the calculator will be able to calculate a realistic number. But even then, there may be a difference due to consumption, e.g. odometer readings can change depending on whether you drive in the city or on the highway. If you tell the calculator that you filled 6 gallons of gas into your vehicle, the calculator will assume that your tank capacity is only 6 gallons. So be aware of that.

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