Most taxpayers meet their tax obligations thanks to withholding from paychecks.
But if you're self-employed, have a side job or have made a killing in the stock market, you'll have to pay estimated taxes. Here's what they are, why you've got to pay them and tips to make the process easier. Tips on tracking down your check from Uncle Sam. Here's how to find out if the IRS check is in the mail. Taxpayers who don't itemize could overpay taxes If you claim the standard deduction on your tax return, you could be overpaying Uncle Sam.