1999 Tax Help Archives  

Pub. 17, Chapter 22 - Limit on Itemized Deductions

How Do You Figure the Limit?

This is archived information that pertains only to the 1999 Tax Year. If you
are looking for information for the current tax year, go to the Tax Prep Help Area.

Download: Form 1040 • 1040 Instructions PDF or HTML
Schedule A & BForm 1040AForm 1040EZTax Tables

If your itemized deductions are subject to the limit, the total of all your itemized deductions is reduced by the smaller of:

  1. 3% of the amount by which your AGI exceeds $126,600 ($63,300 if married filing separately), or
  2. 80% of your itemized deductions that are affected by the limit. See Which Deductions Are Limited?, earlier.

Before you figure the overall limit on itemized deductions, you must first complete lines 1 through 27 of Schedule A (Form 1040), including any appropriate forms (such as Form 2106, Form 4684, etc.).

The overall limit on itemized deductions is figured after you have applied any other limit on the allowance of any itemized deduction. These other limits include charitable contribution limits (chapter 26), the limit on certain meals and entertainment (chapter 28), and the 2%-of-adjusted-gross-income limit on certain miscellaneous deductions (chapter 30).

Itemized Deductions Worksheet. After you have completed Schedule A (Form 1040) through line 27, you can use the Itemized Deductions Worksheet in the Instructions for Form 1040 to figure your limit. Enter the result on line 28 of Schedule A (Form 1040). Keep the worksheet for your records.

You should compare the amount of your standard deduction to the amount of your itemized deductions after applying the limit. Use the greater amount when completing line 36 of your Form 1040. See chapter 21 for information on how to figure your standard deduction.


Example

For tax year 1999, Bill and Terry Willow are filing a joint return on Form 1040 and have adjusted gross income of $255,250. Their Schedule A itemized deductions consist of the following:

State income and real estate taxes $17,900
Home mortgage interest 45,000
Charitable contributions 21,000
Investment interest expense 41,000
Miscellaneous deductions 17,240
Total  $142,140

The Willows figure their overall limit as follows:

Itemized Deductions Worksheet - Line 28 (Schedule A) - (Keep for your records)
1. Add the amounts on Schedule A, lines 4, 9, 14, 18, 19, 26, and 27  $142,140
2. Add the amounts on Schedule A, lines 4, 13, and 19, plus any gambling losses included on line 27     41,000
3. Is the amount on line 2 less than the amount on line 1?
No. Stop. Enter the amount from line 1 above on Schedule A.
Yes. Subtract line 2 from line 1.    101,140
4. Multiply the amount on line 3 by 80% (.80)          80,912
5. Enter the amount from Form 1040, line 34         255,250
6. Enter $126,600 ($63,300 if married filing separately)         126,600
7. Is the amount on line 6 less than the amount on line 5?
No. Stop. Enter the amount from line 1 above on Schedule A, line 28.
Yes. Subtract line 6 from line 5   $128,650
8. Multiply the amount on line 7 by 3% (.03)           3,860
9. Enter the smaller of line 4 or line 8      3,860
10. Total itemized deductions. Subtract line 9 from line 1. Enter the result here and on Schedule A, line 28   $138,280

Of their $142,140 total itemized deductions, the Willows can deduct only $138,280. They enter $138,280 on Schedule A, line 28.


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