What "both" deductions? Are you married?
The maximum deduction is $6,000 for each person 65. The phaseout is 6% of the amount by which MAGI exceeds $75,000 for single or $150,000 for married filing jointly (MFJ). The MAGI is normally the same as your AGI but with some Foreign items from Form 2555 added back in. On a joint return the phaseout is calculated separately for each person, so the 6% phases out $6,000 for each person. This deduction is intended to provide tax relief for seniors and is in addition to the existing Standard Deduction or your Itemized Deductions. Expires December 31, 2028.
The 6,000 senior deduction will be calculated on 1040 Schedule 1-A page 2 Part V Enhanced Deduction for Seniors. Sch 1-A line 38 goes to 1040 line 13b.
For Single, if your MAGI is above $75k Single (150,000 Joint) your senior tax deduction will be reduced by 6 cents for every dollar of income over.
Here's a spreadsheet I made that might help.......
