Quarterly estimate planner

Don't guess on quarterly taxes. Enter your income and see all four due dates, payment amounts, and exactly where to pay. Missing a deadline triggers penalties — we make sure you don't.
Not sure how this works? Read the guide

Educational estimate — not tax advice. Confirm with your CPA.

California business owner? This tool uses the federal 25/25/25/25 schedule. California has a different schedule — 30% in April, 40% in June, nothing in September, 30% in January. Use the CA-specific planner instead →

Tax Planning

Know when your quarterly estimates are due.

Quarterly estimates are due on specific dates — missing them triggers penalties. Enter your expected income and see all four due dates, amounts, and payment instructions at a glance.

Your numbers

Annual net income$300,000

Net self-employment income after business expenses

$20,000$800,000

StatePreferred payment method

Annual Estimate

Estimated at 35% federal + SE tax + state

Total Annual Tax

$178,800

Per Quarter

$44,700

Per Month

$14,900

Quarterly Schedule

Q1 — Due January

Deadline: April 15

Payment

$44,700

Q2 — Due April

Deadline: June 15

Payment

$44,700

Q3 — Due July

Deadline: September 15

Payment

$44,700

Q4 — Due October

Deadline: January 15 (next year)

Payment

$44,700

Payment Instructions

Safe Harbor

Pay 100% of last year's tax (110% if AGI was over $150k) to avoid penalties. If this is your first year, estimate conservatively.

Using IRS Direct Pay (irs.gov)

Go to irs.gov/payments — no registration required. Instant confirmation.

Three things to do right now

01Put all four dates in your calendar. April 15, June 15, September 15, January 15. Set a reminder two weeks before each one. Missing a deadline because you forgot is the most avoidable mistake here.
02Open a dedicated tax savings account. Move 25–30% of every payment you receive into a savings account you don’t touch. Label it “taxes.” When payment day arrives, the money is already there.
03Make your next payment at IRS.gov/payments. IRS Direct Pay is free, takes about five minutes, and gives you an instant confirmation number. No account setup required. If you’re in California, also pay at ftb.ca.gov/pay.