Income & Tax Information
Quarterly Payment Analysis
Enter your income information to see your quarterly payment calculation.
2025 Quarterly Tax Payment Due Dates
Q1 2025
Q2 2025
Q3 2025
Q4 2025
Quarterly Tax Payment Information
Who Must Pay Quarterly
Self-Employed: Business owners, freelancers, contractors
Investors: Those with significant investment income
Retirees: IRA/401k withdrawals without withholding
General Rule: Owe $1,000+ in tax after withholding
Safe Harbor Rules
100% Rule: Pay 100% of prior year tax (no penalty)
110% Rule: 110% if prior year AGI > $150,000
90% Rule: Pay 90% of current year tax
Current Year: Pay actual tax owed by year-end
Penalty Calculation
Rate: 8% annually (as of 2025)
Quarterly: Applied to each quarter separately
Underpayment: Based on required vs actual payments
Exceptions: No penalty if owe less than $1,000
Payment Methods
Online: IRS Direct Pay or EFTPS
Phone: 1-888-PAY-1040 (fee applies)
Mail: Check with Form 1040ES
Same-Day: Electronic payments by 8 PM ET
Important Information
This calculator provides estimates for quarterly tax planning purposes only. Actual tax obligations may vary based on specific circumstances, income timing, and complex tax situations. Quarterly payment requirements and penalty calculations can be complex and may not account for all situations including annualized income installments or special circumstances. Always consult with a qualified tax professional for personalized advice and accurate quarterly payment planning, especially for complex income situations.