I was discussing my tax situation on a few forums like this one, and I learned something which I thought I knew, but was wrong about.
Just because you contribute to a 401k (or similar plan) does not prevent a person from contributing to a deductable IRA.
From pub 590
Publication 590 (2007), Individual Retirement Arrangements (IRAs)
Table 1-2. Effect of Modified AGI 1 on Deduction if You Are Covered by a Retirement Plan at Work
If you are covered by a retirement plan at work, use this table to determine if your modified AGI affects the amount of your deduction.
IF your filing
status is ... AND your modified adjusted gross income (modified AGI)
is ... THEN you can take ...
single or
head of household $52,000 or less a full deduction.
more than $52,000
but less than $62,000 a partial deduction.
$62,000 or more no deduction.
married filing jointly or
qualifying widow(er) $83,000 or less a full deduction.
more than $83,000
but less than $103,000 a partial deduction.
$103,000 or more no deduction. married filing separately 2 less than $10,000 a partial deduction.
$10,000 or more no deduction.
1 Modified AGI (adjusted gross income). See Modified adjusted gross income (AGI), later.
2 If you did not live with your spouse at any time during the year, your filing status is considered Single for this purpose (therefore, your IRA deduction is determined under the “Single” filing status).
So it helps to check what you know all the time. The above was a change for 2007 (which I did not know about until after I did my taxes). My AGI was well below 83k, and it will be lower in 2008.
This came up as I was doing tax planning for 2008. Two new kids, 6k worth of deductions added. Turns out I am heading into AMT territory, and the deducatable IRAs (instead of Roths) might make more sense for us in 2008 (to avoid AMT by lowering taxable income).
Just because you contribute to a 401k (or similar plan) does not prevent a person from contributing to a deductable IRA.
From pub 590
Publication 590 (2007), Individual Retirement Arrangements (IRAs)
Table 1-2. Effect of Modified AGI 1 on Deduction if You Are Covered by a Retirement Plan at Work
If you are covered by a retirement plan at work, use this table to determine if your modified AGI affects the amount of your deduction.
IF your filing
status is ... AND your modified adjusted gross income (modified AGI)
is ... THEN you can take ...
single or
head of household $52,000 or less a full deduction.
more than $52,000
but less than $62,000 a partial deduction.
$62,000 or more no deduction.
married filing jointly or
qualifying widow(er) $83,000 or less a full deduction.
more than $83,000
but less than $103,000 a partial deduction.
$103,000 or more no deduction. married filing separately 2 less than $10,000 a partial deduction.
$10,000 or more no deduction.
1 Modified AGI (adjusted gross income). See Modified adjusted gross income (AGI), later.
2 If you did not live with your spouse at any time during the year, your filing status is considered Single for this purpose (therefore, your IRA deduction is determined under the “Single” filing status).
So it helps to check what you know all the time. The above was a change for 2007 (which I did not know about until after I did my taxes). My AGI was well below 83k, and it will be lower in 2008.
This came up as I was doing tax planning for 2008. Two new kids, 6k worth of deductions added. Turns out I am heading into AMT territory, and the deducatable IRAs (instead of Roths) might make more sense for us in 2008 (to avoid AMT by lowering taxable income).

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