Retirement Strategies IRAs A document published by the Internal Revenue Service (IRS) that provides information on individual retirement arrangements (IRAs), including how to set up an IRA, how to contribute, how much can be contributed, how to treat distributions and how to take tax deductions for contributions made to IRAs. IRS Publication 590 also provides information on penalties that taxpayers might face if IRA regulations are not followed properly.There are significant differences between the various retirement accounts covered in IRS Publication 590, including Roth IRAs and traditional IRAs, especially when it comes to the tax treatment of contributions. The IRS allows taxpayers who make eligible contributions to a IRA, 403(b), 401(k) or SEP to take a tax credit of up to $1,000. 401K By far the most common employer-sponsored retirement plan is the 401(k) plan.The 401(k) plan is a defined contribution plan. It allows employees to make pre-tax contributions, and the funds contributed plus any earnings accumulate tax deferred. Have a Question? Name Email Phone Question Thank you! Oops!