Certain taxpayers must make estimated tax payments throughout the year. Taxpayers must generally pay at least 90 percent of their taxes throughout the year through withholding, estimated tax payments or a combination of the two. If they don’t, they may owe an estimated tax penalty.
For tax-year 2018, the remaining estimated tax payment due dates are Sept. 17, 2018 and Jan. 15, 2019.
Estimated tax is the method used to pay tax on income that is not subject to withholding. This income includes earnings from self-employment, interest, dividends, rents, and alimony. Taxpayers who do not choose to have taxes withheld from other taxable income should also make estimated tax payments. This other income includes unemployment compensation and the taxable part of Social Security benefits.
The IRS urges everyone who works as an employee and who also earns or has income from other sources to perform a Paycheck Checkup now. Doing so will help avoid an unexpected year-end tax bill and possibly a penalty when the taxpayer files their 2018 tax return next year. They can do a checkup using the Withholding Calculator on IRS.gov.
Here are some things to know for taxpayers who make estimated payments:
Form 1040-ES, Estimated Tax for Individuals
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