• Contribute to your state’s 529 Plan by the end of the year. Many states, such as Michigan, offer a state income tax deduction if you make contributions to the plan that the state sponsors.
• Convert your Traditional IRA to a Roth IRA by year end. The IRS created a special election for conversions made in 2010 that will allow you to spread the income from the conversion over 2011 and 2012. You can learn about Roth conversions at Vanguard and use its Roth IRA Conversion Calculator to decide if conversion is right for you.
• Lock-in capital gains and pay at current capital gains rates. Long-term capital gains rates are scheduled to increase in 2011 unless new laws are enacted. If you have unrealized capital gains in a taxable investment account, consider selling your long-term winners and pay at the 15% rate (or 0% if you are in the 10% or 15% ordinary income tax brackets). You can even sell and immediately re-buy the same security to reset its cost basis. The wash sale rule does not apply to gains. You can learn more about this strategy and whether it is in your best interest by reading this article at Fairmark.com.
• Avoid buying mutual funds in a taxable account late in the year. Mutual funds are required to distributed realized gains each year, and you should avoid paying taxes on distributions when you were not around to participate in the gain. Many fund companies report their expected distributions prior to year-end. Check for planned distributions before you buy or wait until the new year.
• Take Required Minimum Distributions (RMD) from your IRAs or employer-sponsored retirement plans if you have reached age 70 1/2. Failure to take a required withdrawal can result in a 50% penalty on the amount not withdrawn.
• Make annual exclusion gifts before year-end. You can give $13,000 in 2010 to an unlimited number of individuals free of gift tax. You cannot carry over unused exclusions from one year to the next.

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Please note that this blog post is for educational purposes only and should not be construed as advice specific to your situation. You should get advice from a legal, accounting, or investment professional before deciding what course of action is appropriate for you.