Quarterly Estimated Tax Tips for Freelancers (2025)

As a freelancer or independent contractor,you must pay estimated taxes quarterly for both income and self-employmenttaxes.

2025 Due Dates

• April 15: Q1 (Jan–Mar)
• June 15: Q2 (Apr–May)
• September 15: Q3 (Jun–Aug)
• January 15, 2026: Q4 (Sep–Dec)

How to Calculate Estimated Payments

Use Form 1040‑ES or the 100% rule based onprior year’s tax. Recalculate each quarter if income fluctuates.

Tips to Avoid Underpayment Penalties

• Pay at least 90% of current year tax or100% of last year’s tax.
• Track deductible expenses.
• Use a separate savings account for taxes.

Self-Employment Tax Insights

SE tax = 15.3% on 92.35% of net earnings.Half of SE tax is deductible.

Practical Workflow

1. Track income and expenses monthly.
2. Estimate profit and compute taxes.
3. Complete 1040-ES quarterly.
4. Pay via IRS website or mail.