1. You should pay estimated taxes in 2014 if you expect to owe $1,000 or more when you file your federal tax return. Special rules apply to farmers and fishermen.
2. Estimate the amount of income you expect to receive for the year to determine the amount of taxes you may owe. To help you determine your tax liability, you should use the IRS Withholding Calculator if you have an employer. If you are self-employed or own a business, use the Self Employment Tax Calculator on my website.
3. You normally make estimated tax payments four times a year. The dates that apply to most people are April 15, June 16 and Sept. 15 in 2014, and Jan. 15, 2015.
4. You may pay online or by phone. You may also pay by check or money order, or by credit or debit card. If you mail your payments to the IRS, use the payment vouchers that come with Form 1040-ES, Estimated Tax for Individuals.
6. Talk to a professional before you pay. Don’t just use Form 1040-ES and its instructions. Accountants, CPAs, and tax preparers all have access to forecasting software that can help you zero in on your estimated tax liability.
You can also watch the video below for additional info