Summary: If your taxable income is over $112,000 you are not able to make a tax deductible contribution to a Traditional IRA, and if you make over $183,000, you are not eligible to make a tax deductible contribution to a Roth IRA. If you are self employed, you can take part in a SEP-IRA, which has different rules then a Traditional and Roth IRA. This is probably a rare case for many people, if you need the deductions, you can look towards making a donation, or finding other deductions for the year. You can always invest the money you would have put in the IRA.
