Logbooks are an Internal Revenue Service-approved method of tracking business expenses that may not necessarily yield receipts. Automobile expense, such as mileage expense and tolls, is one of the most common business expenses maintained by log. The IRS has guidelines that determine what type of expenses can be claimed based on logged records and what needs to be included in the logged records. To claim the expenses on your taxes, you need to properly fill out a logbook based on IRS regulations.
Determine if the business expense you wish to deduct can be supported by logged records. In general, expenses under $75, except for lodging and transportation expenses can be recorded using a daily log, if no receipt is available.
Create a log using spreadsheet software or a columnar pad. Label the columns from left to right “Date,” “Time,” “Amount,” “Place” and “Description.”
Fill in the daily log book with the date and time of each expense. Fill in the amount of the expense or the total mileage driven in the Amount column. Enter the destination you were driving to or the place where the expense occurred in the Place column, and a description of the purpose for the mileage or expense in the Description column.
Logbooks with predrawn columns can be purchased at office supply stores.
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