Your Guide to Estimated Taxes
March 20th, 2010If you’re an employee, your employer withholds taxes from every paycheck and sends the money to the IRS, and probably to your state government as well. This way you pay your income taxes as you go. And, if you’re like most wage earners, you get a nice refund at tax time.
- Interest income
- Dividends
- Gains from sales of stock or other assets
- Earnings from a business
- Alimony
That depends on your situation. The rule is that you must pay your taxes as you go.
If at filing time, you have not paid enough income taxes through withholding or quarterly estimated payments, you may have to pay a penalty for underpayment.
- Do you expect to owe less than $1,000 in taxes for 2009 after subtracting your federal income tax withholding from the total amount of tax you expect to owe? If so, you’re safe—you don’t need to make estimated tax payments.
- Do you expect your federal income tax withholding (plus any estimated taxes paid on time) to amount to at least 90% of the tax that you will owe for 2009? If so, then you’re in the clear, and you don’t need to make estimated tax payments.
- Do you expect that your income tax withholding will be at least 100 percent of the tax on your 2008 return? Or, if your adjusted gross income (Form 1040, line 37) on your 2008 tax return was over $150,000 ($75,000 if you’re married and file separately), do you expect that your income tax withholding will be at least 110% of the tax you owed on for 2008? If so, then you’re not required to make estimated tax payments.
If you answered “no” to all of these questions, you must make estimated tax payments with Form 1040-ES. To avoid a penalty, your total tax payments (estimated taxes plus withholding) during 2009 must satisfy one of the requirements we just covered.
That depends on your situation.
The safest option to avoid an underpayment penalty for 2009 is to aim for “100 percent of your 2008 taxes.” If your 2008 adjusted gross income was more than $150,000 (or $75,000 for those who are married and filing separate returns in 2008), you will have to pay in 110 percent of your 2008 taxes. If you satisfy either test, you won’t have to pay an estimated tax penalty, no matter how much tax you owe with your 2009 tax return.
If you expect your income in 2009 to be less than in 2008 and you don’t want to pay more taxes than you think you will owe at year end, you can choose to pay 90 percent of your estimated 2009 tax bill. If the total of your estimated payments and withholding add up to less than 90 percent of what you owe, you may face an underpayment penalty. So you may want to avoid cutting your payments too close to the 90 percent mark to give yourself a little safety net.
If you expect your 2009 income to be more than your 2008 income and you don’t want to end up owing any taxes when you file your 2009 return, try to make enough estimated tax payments to pay 100 percent of your 2009 income tax liability.
You need to come up with a good estimate of the income and deductions you will report on your federal tax return next year.
You can use TurboTax tax preparation software to do the calculations for you, or get a copy of the worksheet accompanying Form 1040-ES and work your way through it. Either way, you’ll need some items so you can plan what your estimated tax payments should be:
- Your 2008 return. Use your 2008 federal tax return as a check to make sure you include all the income and deductions you expect to take on your 2009 tax return. You should also look at the total tax you paid if you are going to base your estimated tax payments on 100 or 110 percent of your 2008 taxes.
- Your record of any estimated tax payments you’ve already made for 2009. You need to take those payments into account when you determine how much tax you still owe, so have your check register handy to look up the amounts and dates you paid.
One easy way to get a jump on paying your 2010 taxes is to apply your 2009 tax refund to your 2010 taxes instead of receiving a refund. If you won’t have federal income tax withheld from wages, or if you have other income and your withholding will not be enough to cover your tax bill, you probably need to make quarterly estimated tax payments. Having all or part of your overpayment applied to your estimated taxes is a relatively painless way to take care of some of what you owe for 2010.

