Should I keep my manual log in my vehicle to track my miles?

According to the IRS, “yes.” Your accountant will determine the best tax deduction based on the XLSX log. However, we know the reality of manually logging miles isn’t simple or efficient. That is why we invented Slacklog. Slacklog was created to help busy professionals focus on their business, not their business miles. Use your manual log if you have it. But, if it has gaps or may not be accurate, the Slacklog report may be more effective.