Internal Revenue Service United States Department of the Treasury
Level Basic Advanced Military International

Itemized Deductions

Determining the Allowable Portion

Calculating the Allowable Portion (continued)

Case Study (continued)

Take a moment to review the allowable portions of Juan and Judith’s itemized deductions and their Schedule A.

Expense Amount Allowable Portion of Deduction

Medical and dental expenses

$3,457

($39,780/$59,300) x $3,457 = $0*

Real estate taxes

$1,200

($39,780/$59,300) x $1,200 = $805

Mortgage interest on their home

$9,480

($39,780/$59,300) x $9,480 = $6,359

Charitable contributions (cash)

$2,086

($39,780/$59,300) x $2,086 = $1,399

*Medical expenses must exceed 7.5% of adjusted gross income.

Think about it: Based on Juan and Judith’s information, they can claim either the allowable portion of the itemized deduction $8,563 or the allowable portion of standard deduction $19,587 ($29,200 x 0.6708), whichever is greater.

If you elect to itemize deductions even though they are less than standard deduction, check the box on line 18 of Schedule A.

Form 1040 showing Itemized Deductions from Schedule A of $8,563