Is the $1200 a month before expenses or the Net Profit after expenses? Is your LLC a Single Member LLC that elected to be an S Corp? If not, it is a disregarded entity and you file it as self employment on Schedule C in your personal 1040 return.
Filing quarterly means to send in estimated payments to cover the self employment tax since you don't have withholding taken out like if you were an employee on a W2. There isn't a tax return to file. You still file all your self employment on your personal 1040 tax return.
For SE self employment tax - if you have a net profit (after expenses) of $400 or more you will pay 15.3% SE Tax on 92.35% of your net profit in addition to your regular income tax on it. So if you have other income like W2 income your extra business income might put you into a higher tax bracket.
You must make quarterly estimated tax payments for the current tax year if both of the following apply:
- 1. You expect to owe at least $1,000 in tax for the current tax year, after subtracting your withholding and credits.
- 2. You expect your withholding and credits to be less than the smaller of:
90% of the tax to be shown on your current year’s tax return, or
100% of the tax shown on your prior year’s tax return. (Your prior year tax return must cover all 12 months.)
To prepare estimates for next year you start with your current return, (if you can't get back into your return try this, On the Tax Timeline page you have to select Add A State to get back into your return). But be careful not to change anything on your real return.
Go to Federal Taxes or Personal (Home&Business version)
Other Tax Situations
Other Tax Forms
Form W-4 and Estimated Taxes - Click the Start or Update button
Say No to W4. When you get to the W4 and Estimated Taxes section, say you want to adjust your income to go though all the screens.
TIP - If you didn't owe or missed making the prior quarterly estimated payments and need to just calculate starting now, you can go though the Estimated Taxes section and just put $1 (one dollar) in for the quarters you missed. Then it will only figure the current and remaining quarters.
The 1040ES quarterly estimates are due April 15, June 16, Sept 15 and Jan 15, 2026. Your state will also have their own estimate forms.
