Quarterly tax payments without the panic.

The single most stressful tax conversation I have isn't about deductions or audits. It's the one where someone owes $18,000 in January, and the money isn't sitting anywhere. They earned it, they spent it, and now they have a deadline.

The fix is mechanical. It's not glamorous. But it works, and once it's set up, you stop thinking about quarterly taxes for the rest of the year.

The system, in one paragraph

Open a separate savings account. Every time money comes into your business, move a percentage of it to that account. When quarterly taxes are due, pay from that account. Never touch it for anything else. That's it.

What percentage

Most service-business owners are roughly in this ballpark:

• Made under $50K of profit last year: set aside 20%
• $50K–$120K profit: set aside 25%
• $120K–$250K profit: set aside 28–30%
• Over $250K profit: set aside 32%+

These rates already include a buffer for self-employment tax (15.3%) plus federal income tax. If you're in a state with income tax, add 4–8% on top depending on the state. Texas, Florida, and a handful of others are 0%, which is part of why I'm in Texas.

The percentage is a starting point, not a guarantee. The point is to be approximately right, not precisely right. It's much easier to refund yourself $2K of overage in March than to come up with $8K of underage in January.

How to actually do it

1. Open the account before you need it.

Any high-yield savings account at any bank. Ally, Capital One, your existing bank's savings option, doesn't matter. Just not the same account as your operating cash, and not your personal savings.

2. Move money on revenue, not on a calendar.

The trap most people fall into: "I'll set aside taxes at the end of the month." Then the month is busy, you forget, and three months in you owe more than you have. The right rule: every time a payment lands, transfer the percentage immediately. Stripe deposit lands? Transfer 25% before doing anything else. Invoice paid? Transfer 25%. The trigger is revenue, not the calendar.

3. Automate what you can.

Some banks let you set rules ("for every deposit over $500, transfer X% to savings"). Stripe and most processors let you split deposits across two accounts. If you can automate this, do. The number of decisions you have to make should be one ("set up the system") not ongoing.

4. Pay quarterly, not annually.

Federal estimated payments: April 15, June 15, September 15, January 15. State varies but mostly the same dates. Pay through IRS Direct Pay or your state's portal. Save the confirmation. Track in a spreadsheet.

The honest truth about the rates

The percentages above are guesses based on typical situations. Your actual rate depends on your filing status, deductions, business structure, state, retirement contributions, and things like the QBI deduction. The "right" answer is to project your full-year tax once a quarter and adjust.

If that sounds like a lot, it is. So either:

1. Use the percentage rules above as a "set it and forget it" approach. You'll be approximately right. Refund or owe a small amount at year-end.
2. Have your accountant project once a quarter. Takes 30 minutes. Result is a precise quarterly payment based on actual YTD numbers. Worth it for businesses making over ~$150K profit, where being off by even 5% is $7,500.

The behavioral piece

The reason this system works isn't that the percentages are precise. It's that the money physically isn't there. If your taxes are sitting in your operating account, your brain treats them as available cash. You spend them on something — payroll, ads, equipment, "I'll just borrow from it for a week." Then January arrives and the money is gone.

Moving the money out solves the behavioral problem, not the math problem. The math is easy. The behavioral problem is what kills people.

What to do today

If you don't have a tax savings account, open one in the next 24 hours. Move 20% of whatever's in your operating account today as a starting catch-up. Set a calendar reminder for the next quarterly date. That's it. The full system can take a couple of months to dial in. The decision to start takes ten minutes.