1099 Freelance & Self-Employment Tax Calculator
Accurately estimate 15.3% SECA self-employment taxes, federal progressive brackets, state tax liabilities, and Form 1040-ES quarterly deadlines for sole proprietors, LLC owners, and independent contractors.
IRS Form 1040-ES Quarterly Deadlines
Avoid IRS underpayment penalties with scheduled payments
1099 Freelancer vs. W-2 Employee Take-Home Comparison
As a 1099 contractor, you pay approximately $595 more in FICA self-employment taxes than a W-2 employee with identical gross earnings because you cover both the employer and employee shares.
Maximize Schedule C Tax Write-Offs
Find every allowable business expense, mileage deduction, and home office write-off to slash your tax bill.
Understanding Self-Employment Tax & Schedule C Deductions
Key tax strategies, write-offs, and compliance steps for independent contractors and LLCs.
🧾 Maximize Schedule C Write-Offs
Every dollar in ordinary business expenses (mileage, home office, software subscriptions, equipment depreciation) directly reduces both income tax and the 15.3% SECA tax.
📅 Quarterly Safe Harbor Rule
To avoid underpayment penalties, pay either 90% of your current year tax liability or 100% (110% for high earners) of your prior year tax liability across the 4 quarterly deadlines.
🏛️ Section 199A QBI Deduction
Eligible pass-through business entities and sole proprietors may deduct up to 20% of their qualified business income (QBI), substantially reducing effective federal taxable rates.