Deductions and Write-Offs

For tax years beginning after December 31, 2016 and before January 1, 2019, medical expenses, for all taxpayers, are deductible to the extent that they exceed 7.5% of AGI.

In addition, the AMT preference related to medical expenses is eliminated.

The Act increases the base standard deduction from the inflation adjusted levels that applied in 2017 to:

$12,000 for Single, Qualifying widower and Married filing separately taxpayers.

$24,000 for married taxpayers filing Joint returns,

$18,000 for taxpayers filing as Head of Household.

The additional standard deduction available to taxpayers who are age 65 or older and or blind remain unchanged.
For 2018 the additional amount is $1,300 for married taxpayers and $1,600 for unmarried taxpayers.

For tax years beginning after December 31, 2017 and before January 1, 2026, the overall itemized deduction limitation of 3% of the excess of AGI over the threshold amount (applicable to certain itemized deductions) is suspended.

100% additional first-year bonus depreciation is allowed for qualified property acquired and placed into service after September 27, 2017 and before January 1, 2023.

The new rules eliminate the requirement that the original use of the property commence with the taxpayer. As such, bonus depreciation is available for new or used property.

Taxpayers have a right to elect 50% bonus depreciation for property placed into service after September 27, 2017 during the first tax year that ends after September 27, 2017.
In the years that follow the bonus depreciation percentage will diminish. i. For property placed into service after December 31, 2022 and before January 1, 2024 bonus depreciation is 80%.
ii. For property placed into service after December 31, 2023 and before January 1, 2025 bonus depreciation is 60%.
iii. For property placed into service after December 31, 2024 and before January 1, 2026 bonus depreciation is 40%.
iv. For property placed into service after December 31, 2025 and before January 1, 2027 bonus depreciation is 20%.

Gambling losses remain deductible as a miscellaneous itemized deduction (not subject to the 2% limitation) to the extent of gambling winnings.
,br> The Act provides that all deductions for expenses incurred in carrying out wagering transactions, and not just gambling losses, are limited to the extent of gambling winnings.

The IRS standard business mileage rate for 2018 is 54.5 cents a mile
.
The rate for medical expense and moving expense for certain military personnel deductions is 18 cents a mile.

For charitable volunteers the mileage rate is unchanged at 14 cents a mile.

Pursuant to the Act, for tax years beginning after December 31, 2017 and before January 1, 2026, a deduction will only be allowed for interest on a debt that qualifies as Acquisition Indebtedness. No deduction will be allowed for Home Equity debt.

In addition, the Act reduces the amount of eligible Acquisition Indebtedness borrowing to $750,000 for any debt incurred on or after December 15, 2017.

A taxpayer who entered into a binding contract before December 15, 2017 to close on the purchase of a residence before January 1, 2018, and who actually closes on the acquisition before April 1, 2018, shall be considered to have incurred the Acquisition Indebtedness before December 15, 2017.

ii. The old Acquisition Indebtedness limits continue to apply to taxpayers who refinance existing Acquisition Indebtedness as long as the indebtedness resulting from the refinancing does not exceed the amount of the original debt.

For 2017, the deduction for Qualified Residence Interest was limited to interest paid on up to $1,000,000 of borrowing that qualified as “Acquisition Indebtedness” and up to $100,000 of borrowing that qualifies as “Home Equity Indebtedness”.
Acquisition Indebtedness being defined as debt incurred to acquire, construct or substantially improve a principal residence or a second home, with no restriction on the use of Home Equity Indebtedness.

In 2015, the standard mileage rates for the use of a car, van, pickup or panel truck is 57.5 cents per mile for business use, 23 cents a mile for medical or moving purposes and 14 cents per mile driven in service of charitable organizations.

Beginning on January 1, 2017, the standard mileage rates for the use of a car (also vans, pickups or panel trucks) will be 53.5 cents per mile for business miles driven, 17 cents per mile driven for medical or moving purposes, 14 cents per mile driven in service of charitable organizations. Taxpayers always have the option of calculating the actual costs of using their vehicle rather than using the standard mileage rates. A taxpayer may not use the business standard mileage rate for a vehicle after using any depreciation method under the Modified Accelerated Cost Recovery System (MACRS) or after claiming a Section 179 deduction for that vehicle.