Deductions and Write-Offs

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.

The PATH Act permanently extended the enhanced $500,000 maximum amount of expensing available (along with the $2,000,000 phase-out threshold) under §179.

Under the new law, for property placed into service in tax years beginning after December 31, 2017, the maximum amount of expensing is increased to $1,000,000, and the phase-out threshold amount is increased to $2,500,000.

For tax years after 2018 these amounts will be indexed for inflation.

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.

The combination of residential property taxes and Income or sales taxes is capped at $10,000.

Property taxes remain fully deductible for taxpayers in a business or for-profit activity, so taxes paid on rental realty can be taken in full on Schedule E.

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.

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.

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.

For tax years beginning after December 31, 2017 and before January 1, 2026 all miscellaneous itemized deductions that were previously subject to a 2% AGI limitation are suspended.

Among the items included in this elimination are:
All unreimbursed employee business expenses;
Union dues
Brokerage fees
All expenses related to tax return preparation;
Appraisal fees for charitable contributions;
Investment expenses.

For contributions made in tax years beginning after December 31, 2017 and before January 1, 2026 the 50% limitation is increased to 60%. Any amounts in excess of the new limit can be carried forward and deducted for up to five years (as was allowed under prior law).

For any contribution made in a tax year beginning after December 31, 2016, the requirement of a charity to provide contemporaneous written acknowledgement as substantiation for any contribution of $250 or more is repealed.

Beginning in 2018, no charitable deduction is allowed for any payment to an institution of higher learning in exchange for which the contributor is given a right to purchase seats at an athletic event.

Prior to the enactment of the new law, charitable contributions were deductible with certain ceilings based upon a percentage of AGI. A 50% of AGI limit applied to cash contributions to public charities and certain private foundations.