You may be making bank and funneling some of that money into a Roth IRA.  Unfortunately, once you start making too much money, Roth IRA income limits kick in and the party must come to an end.  Unfortunately, Congress has decided that not everyone is eligible to contribute to their Roth IRA in 2012.

Here are the details:

• If you’re single, when your modified adjusted gross income (look at Page 1 of your tax return) exceeds $110,000 your contributions begin getting limited and then totally phase out once you hit $125,000.
• If you’re married and filing jointly, then contributions get limited once your combined MAGI hits $173,000.  At $183,000 you can no longer contribute.
• If you’re married and filing separately, the limits are a bit weird.  Basically you can’t contribute anything unless your income is less than $10k.

The IRS did a nice job summarizing the income limits.  You can see the full table below:

If you fall between the limits, then you can contribute a pro-rated percentage.  So for instance, if you are married and filing jointly and you make $178,000 you can contribute 50% of what you would otherwise be able to.