Four federal deadlines a year, spaced unevenly, with no email from the IRS and no employer to catch the miss. Set a reminder 7 to 10 days before the next one and pay on time instead of paying interest on top.
Done in seconds. No sign-up required.
It's not a flat late fee. It's compounding interest that keeps running until you catch up.
IRS short-term rate plus three percent is the underpayment penalty formula, roughly 7% to 8% annualized in recent years
Internal Revenue Code §6621
Interest compounds daily, not monthly or quarterly. The meter never stops between the deadline and the day you pay
IRS Form 2210 instructions
Per year, spread unevenly across 12 months: April, June, September, and the following January
IRS Form 1040-ES
With a W-2 job, tax withholding happens automatically every paycheck. There's no deadline to remember because the system does the remembering for you. Quarterly estimated taxes flip that completely. You owe four payments a year, on four specific dates, and the responsibility for remembering them is entirely yours.
The intervals are awkward. April to June is two months. June to September is three. September to January is four. That uneven spacing makes it hard to build a routine around. And the dates don't line up with anything else on the calendar, so nothing else in your life nudges you toward them.
The IRS is no help here. Unlike your utility company, your landlord, or your credit card, the IRS does not send email reminders. They do not call. They do not text. If you miss a deadline, you find out the following April when your accountant adds a penalty line to your return.
The gap between paying on time and paying a penalty is usually just a few days of awareness. Most people who miss a quarterly deadline didn't forget the concept of quarterly taxes. They forgot the specific date, realized a week or two late, and then owed interest on top.
Enough lead time to calculate what you owe, move money into the right account, and submit through IRS Direct Pay or EFTPS without scrambling.
Phone notifications get swiped away in a split second. Email sticks in your inbox until you deal with it, which is the point.
If you don't mark the reminder done, BoldRemind keeps emailing. It doesn't quietly disappear after one notification and assume you handled it.
Not a flat fee. Not a warning letter. Just silent compounding interest.
April 15, June 15, September 15, and January 15, 2027. Two-month gap, then three-month, then four. No pattern to latch onto.
See full 2026 dates →Interest starts the day after. You can still catch up by paying as soon as you remember, but the penalty on the days you were late stays.
What to do if you missed one →IRS short-term rate plus 3%, compounded daily, prorated per quarter. Know the math so the number on your return isn't a surprise.
Penalty math explained →Everything else about quarterly estimated taxes lives here.
No. The IRS does not email individual taxpayers about quarterly payments at all. Any email claiming to be from the IRS is almost certainly a scam. That's why a third-party email reminder is the only way to get a heads-up before each deadline.
Set it for 7 to 10 days before the deadline. That gives you time to calculate what you owe, transfer money into the account you'll pay from, and submit through IRS Direct Pay or EFTPS without rushing. A same-day reminder is too late if you still need to do the math.
BoldRemind reminders are set per-date, so you either create four separate reminders (one for each 2026 deadline) or create the next one and come back after you've paid to schedule the following quarter. Each reminder then follows up until you mark it done.
The four 2026 federal deadlines are April 15, 2026, June 15, 2026, September 15, 2026, and January 15, 2027. When a date falls on a weekend or federal holiday, it shifts to the next business day. See the full 2026 deadlines breakdown for the quarters each date actually covers.
Yes, more than most people expect. The underpayment penalty is the IRS short-term rate plus 3%, compounded daily (IRC §6621). Interest keeps accruing until you pay, so a single missed quarter can quietly cost hundreds of dollars on a meaningful tax bill. See what happens if you miss a quarterly payment.
Anyone who expects to owe more than $1,000 in federal tax after withholding. In practice that means most self-employed, 1099, and gig workers, plus W-2 employees with significant side income, RSUs, or capital gains. See the full breakdown of who has to pay quarterly estimated taxes.
Free, no account, 30 seconds. Get an email before the next IRS deadline with enough lead time to calculate and pay, plus follow-ups until you do.
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