Hello rorobrobro!
Once you've calculated your quarterly payments,
- You can submit them online through the Electronic Federal Tax Payment System.
- You can also pay using paper forms supplied by the IRS.
- When you file your annual tax return, you'll pay the balance of taxes that weren't covered by your quarterly payments.
For more information on this topic click this link: https://turbotax.intuit.com/tax-tips/self-employment-taxes/a-guide-to-paying-quarterly-taxes/L6p8C53...
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