Quarterly Tax Scheduler 2025
Never miss an IRS deadline again. Enter your estimated income and get your exact quarterly payment calendar — due dates, amounts, and safe harbor guidance.
Your 2025 Income Details
Safe harbor: paying 100% of last year's tax avoids underpayment penalties, even if you owe more in April.
Enter your income above
We'll build your full quarterly payment calendar with exact dates and amounts.
Frequently asked questions
When are the 2025 quarterly estimated tax deadlines?
The 2025 IRS deadlines are: Q1 — April 15, Q2 — June 16, Q3 — September 15, and Q4 — January 15, 2026.
How much should I pay each quarter?
Pay 25% of your estimated annual tax per quarter. The safe harbor rule lets you avoid penalties by paying 100% of last year's tax bill split into 4 equal payments — even if you end up owing more.
What if I miss a quarterly deadline?
The IRS charges an underpayment penalty (currently ~8% annualized) on late or underpaid quarters. Meeting the safe harbor threshold each quarter fully avoids this penalty.
How do I actually pay the IRS?
Use IRS Direct Pay at irs.gov/payments/direct-pay — it's free, instant, and requires no account. Select 'Estimated Tax' and year 2025. You can also mail a check with Form 1040-ES.
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