Frequently Asked Questions

Do you need to log your business miles for the IRS?

Slacklog is a mileage log generator.

It only takes 15 minutes to generate a printable mileage report for your annual tax return. It's private and secure.

The cost is $10 with a Credit or Debit Card.

You answer a series of questions, and it creates a mileage log. You will receive a minimally formatted XLSX file with pre-filled data you can customize in your preferred spreadsheet editor.

Why Slacklog?

Using a mileage log allows you to accurately track your vehicle-related expenses, including fuel, maintenance, insurance, and depreciation. This helps you claim the correct deductions and ensures you don't overlook any eligible expenses.


When it comes to tracking mileage for tax purposes, you should generally focus on tracking mileage for business or deductible purposes rather than personal trips. Here's why:
  1. Tax Deductions: The primary purpose of tracking mileage is to claim tax deductions for expenses related to your vehicle's use for business or other deductible activities.
  2. IRS Requirements: The IRS requires detailed records and documentation to support mileage deductions.
  3. Audit Risk: If you claim mileage deductions without proper documentation, you may face an increased risk of IRS audits.
However, it's worth noting that in some specific situations, personal trips can be indirectly related to deductible activities:
  1. Commuting from a home office: If you have a home office and your daily commute begins and ends there, you may be able to deduct mileage for business-related travel within your workday, such as client meetings or site visits.
  2. Combining business and personal trips: If you have a single trip that includes both personal and business components, you can generally deduct the mileage related to the business portion of the trip. However, you need to maintain clear documentation and be able to substantiate the business purpose of the trip.
In summary, it's advisable to primarily track mileage for business or deductible activities to ensure accurate tax deductions and compliance with IRS regulations. Personal trips, such as daily commuting or non-deductible errands, are generally not eligible for mileage deductions. If you have complex situations where personal and business mileage overlap, consult with a tax professional for guidance on how to handle these scenarios correctly.

Deductions for Business Use

If you use your vehicle for business purposes, you can deduct the expenses related to that use. The Slacklog mileage log helps you track the number of miles you drive for business, which can be used to calculate your deduction. This can significantly reduce your taxable income and lower your tax liability.

Are you an accountant?

Interested in providing Slacklog to your clients? Contact us for a bulk license.

Tax day is coming

Get your mileage log early. This will give you time to adjust it and make it accurate.