Brent's basis in the business portion of the auto as of January 1, 2021, under the automatic mileage method is $26,356.66.
How to solve
To determine Brent's basis in the business portion of the auto as of January 1, 2021, under the automatic mileage method, follow these steps:
1. Calculate the annual business mileage:
Business mileage = Total mileage * Business use percentage
For each year, calculate the business mileage as follows:
Year Total mileage Business use percentage Business mileage
2017 7,500 miles 88% 6,600 miles
2018 18,750 miles 88% 16,500 miles
2019 21,000 miles 88% 18,480 miles
2020 15,000 miles 88% 13,200 miles
2. Calculate the annual depreciation deduction:
Depreciation deduction = Business mileage * Standard mileage rate
For each year, calculate the depreciation deduction as follows:
Year Business mileage Standard mileage rate Depreciation deduction
2017 6,600 miles $0.54 $3,564
2018 16,500 miles $0.545 $9,011.25
2019 18,480 miles $0.545 $10,104
2020 13,200 miles $0.575 $7,590
3. Calculate the basis adjustments for depreciation:
Basis adjustment = Depreciation deduction * Business use percentage
For each year, calculate the basis adjustment for depreciation as follows:
Year Depreciation deduction Business use percentage Basis adjustment
2017 $3,564 88% $3,135.52
2018 $9,011.25 88% $7,929.90
2019 $10,104 88% $8,891.52
2020 $7,590 88% $6,686.40
4. Calculate the adjusted basis as of January 1, 2021:
Adjusted basis = Original basis - Total basis adjustments for depreciation
Original basis = $58,000
Total basis adjustments for depreciation = $31,643.34 (Sum of basis adjustments for 2017, 2018, 2019, and 2020)
Adjusted basis = $58,000 - $31,643.34 = $26,356.66
Therefore, Brent's basis in the business portion of the auto as of January 1, 2021, under the automatic mileage method is $26,356.66.