Question: Who has to make estimated tax payments?
Answer: If you have income from which no income tax is withheld (such as business income), you may be required to make quarterly estimated tax payments. Also, if you don't have enough income taxes withheld from wages and pensions to cover your tax liability, you may need to make estimated tax payments.
Federal estimated taxes for individuals are paid with Form 1040-ES and are due on April 15, June 15, September 15 of the tax year involved and on January 15 of the following year.
If this is your first year with self-employment income or increased interest and dividend income, review your requirements for quarterly estimates to avoid being penalized by the IRS.