To avoid interest and penalties, you must make sufficient federal income tax payments long before your April filing deadline through withholding, estimated tax payments, or a combination of the two. The third 2018 estimated tax payment deadline for individuals is September 17.
If you don’t have an employer withholding tax from your pay, you likely need to make estimated tax payments. But even if you do have withholding, you might need to pay estimated tax. It can be necessary if you have more than a nominal amount of income from sources such as self-employment, interest, dividends, alimony, rent, prizes, awards or the sales of assets.
A two-prong test
Generally, you must pay estimated tax for 2018 if both of these statements apply:
- You expect to owe at least $1,000 in tax after subtracting tax withholding and credits, and
- You expect withholding and credits to be less than the smaller of 90% of your tax for 2018 or 100% of the tax on your 2017 return — 110% if your 2017 adjusted gross income was more than $150,000 ($75,000 for married couples filing separately).
If you’re a sole proprietor, partner or S corporation shareholder, you generally have to make estimated tax […]