This year, the optional standard mileage rate used to calculate the deductible costs of operating an automobile for business decreased by one-half cent.
Mileage Rate for Businesses Decreases Slightly for 2020
![](https://www.landmarkcpas.com/wp-content/uploads/2022/12/MIleage-Rate-for-2020-RS-1024x640.jpg)
This year, the optional standard mileage rate used to calculate the deductible costs of operating an automobile for business decreased by one-half cent.