When no employer is withholding tax from your pay, the responsibility shifts to you, and in the United States that generally means making estimated tax payments four times a year rather than one at tax time.
Why quarterly payments exist
The tax system is designed to collect tax throughout the year as income is earned, not in one lump sum. Freelancers, independent contractors, and gig workers who expect to owe a meaningful amount are generally expected to estimate and pay tax quarterly to avoid a potential underpayment penalty.
A simple way to estimate what to set aside
A common starting rule of thumb is to set aside roughly a quarter to a third of net freelance income for combined federal, state, and self-employment tax, though the right figure depends on your total income, deductions, and location. Moving that percentage into a separate account as soon as each payment arrives keeps the money from accidentally being spent.
What counts as income for this purpose
Generally, this includes freelance fees, gig platform earnings, and most 1099 income after subtracting legitimate business expenses, since self-employment tax is calculated on net profit rather than gross revenue.
Keeping records that make this easier
Tracking income and business expenses consistently throughout the year, rather than reconstructing everything in April, makes it far easier to calculate an accurate estimate each quarter and to claim every deduction you are entitled to.
When to get professional help
Quarterly estimates can get more complex with multiple income sources, a mix of freelance and W-2 income, or business expenses and deductions. A qualified tax professional can help set an accurate withholding percentage for your specific situation and help avoid both underpayment and needlessly overpaying throughout the year.
Quarterly taxes feel intimidating mainly because they are unfamiliar. Once a percentage is set aside automatically with each payment, the process becomes far more routine.