If a taxpayer contributes to both a traditional IRA and a Roth IRA, the combined con-
tributions cannot exceed the normal annual limit ($5,000 or $6,000 if age 50 or older in
2010).
A nondeductible traditional IRA contribution may be made by taxpayers with income
over the phase-out ranges shown above. Although the taxpayer cannot deduct the contri-
bution, all income earned in the IRA account is sheltered from tax until the earnings are
withdrawn, similar to the treatment of annuities discussed in Chapter 2. Many high-income
taxpayers make nondeductible traditional IRA contributions each year because of the
deferral of tax on the earnings of the IRA.
EXAMPLE Ed, age 31, is single and is covered by a retirement plan. If his modi-
fied adjusted gross income is $61,000, Ed’s maximum deductible tradi-
tional IRA contribution is $2,500. With income of $61,000, his $5,000
contribution is proportionately phased out by dividing the amount
remaining in his phase-out range, $66,000$61,000, or $5,000, by the
$10,000 phase-out range (the difference between the bottom and top
of the $56,000 and $66,000 phase-out range) and multiplying this by
the $5,000 maximum IRA deduction as follows:
ð$66,000 $61,000Þ
$10,000
$5,000 ¼ $2,500 allowed IRA deduction
Ed may choose to contribute the $5,000 maximum to a tradi-
tional IRA, but the remaining $2,500 will not be deductible. Alter-
natively, he may contribute the remaining $2,500 to a Roth IRA
since his income is below the phase-out range for Roth IRA contri-
butions. He could also choose to ignore the allowed traditional IRA
contribution and contribute the full $5,000 to a Roth IRA. In any
event, he cannot contribute more than $5,000 in total to IRAs, and
his maximum allowed tax deduction for a traditional IRA contribu-
tion will be $2,500. N
2010 AGI Phase-out Ranges for Traditional IRA Contributions
Type of Taxpayer Phase-out Range
Single or HOH, not a plan participant No phase-out
Single or HOH, active plan participant $56,000–$66,000
Married, Joint, both active participants $89,000–$109,000
Married, Joint, neithe r active plan participants No phase-out
Married, Joint, one an active participant (See Note 1 below)
Active participant spouse $89,000–$109,000 ( Joint AGI)
Non-active participant spouse $167,000–$177,000 ( Joint AGI)
Note 1: When one spouse is an active participant in a retirement plan and the other
is not, two separate income limitations apply. The active participant spouse may make
a full deductible IRA contribution unless the $89,000–$109,000 phase-out range
applies to the couple’s joint income. The spouse who is not an active participant may
make a full deductible IRA contribution unless the higher $167,000–$177,000 phase-
out range applies to the couple’s joint income.
3-18 Chapter 3
Business Income and Expenses, Part I
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