Gig Worker Quarterly Estimated Tax Calculator (Form 1040-ES)
For 1099 contractors, rideshare drivers (Uber/Lyft), delivery couriers (DoorDash/Instacart), and freelancers. Computes Schedule C net profit, 15.3% self-employment tax, and quarterly voucher deadlines.
work 1099 Income & Deductions
Schedule C & SE TaxTotal revenue reported on Form 1099-NEC / 1099-K.
IRS standard mileage, vehicle expenses, phone, equipment, supplies.
- 92.35% of net profit is subject to SE tax.
- Social Security: 12.4% on earnings up to $176,100 cap.
- Medicare: 2.9% on all earnings with no cap.
- 50% of your total SE tax is deducted from your income on Form 1040 Schedule 1.
IRS Safe Harbor Rule for Estimated Taxes
Under IRS Publication 505, you can avoid underpayment penalties if your total quarterly payments and withholdings equal at least 100% of your prior year's tax liability (110% if your prior year AGI exceeded $150,000 for single or married filing jointly), or 90% of your current year tax liability.
Frequently Asked Questions
Who needs to pay quarterly estimated taxes?
Independent contractors, rideshare and delivery drivers, freelancers, and small business owners who expect to owe at least $1,000 in federal tax for the year.
What are the IRS safe harbor rules for estimated taxes?
To avoid an underpayment penalty, pay either 90% of your current tax year liability or 100% of your prior year tax liability (110% if prior year AGI exceeded $150k).
What are the quarterly voucher due dates?
Q1 is due April 15, Q2 is due June 15, Q3 is due September 15, and Q4 is due January 15 of the following year.