Free tool

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.

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

Not sure how this works? Read the guide

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 32% federal + SE tax + state

Total Annual Tax

$169,800

Per Quarter

$42,450

Per Month

$14,150

Quarterly Schedule

Q1 — Due January

Deadline: April 15

Payment

$42,450

Q2 — Due April

Deadline: June 15

Payment

$42,450

Q3 — Due July

Deadline: September 15

Payment

$42,450

Q4 — Due October

Deadline: January 15 (next year)

Payment

$42,450

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.