If you are self-employed, a freelancer, an independent contractor, or a small business owner, no one is withholding taxes from your income the way an employer does for a W-2 worker. Instead, the IRS expects you to pay as you earn throughout the year. That is what quarterly estimated taxes are. Get them right and tax season is uneventful. Get them wrong and you can face a surprise bill plus an underpayment penalty.
Here is how the system works for business owners across Long Island and the tri-state area.
Who Has to Pay Estimated Taxes?
Generally, you must make estimated payments if you expect to owe $1,000 or more in federal tax for the year after subtracting any withholding and refundable credits. This applies to most sole proprietors, partners, S-corporation shareholders, and members of LLCs taxed as pass-through entities.
You may not need to pay estimates if you also have a W-2 job and increase the withholding on that paycheck enough to cover your self-employment income. For most full-time self-employed people, though, quarterly payments are simply part of the routine.
The Four Payment Periods
The tax year is split into four payment periods, and each has its own deadline. The income is divided unevenly across the calendar, so the due dates are not exactly three months apart. For a typical calendar year, the deadlines generally fall on:
- Q1 (income from January through March): due mid-April
- Q2 (income from April through May): due mid-June
- Q3 (income from June through August): due mid-September
- Q4 (income from September through December): due mid-January of the following year
When a due date lands on a weekend or a legal holiday, it moves to the next business day. Always confirm the exact dates each year, because they shift slightly.
How to Calculate What You Owe
You have two broad ways to figure your payments: base them on what you actually expect to earn this year, or use a safe harbor tied to last year's tax. The safe harbor is the simplest protection from penalties because it does not require you to predict your income perfectly.
Under the federal safe harbor, you generally avoid an underpayment penalty if your total payments for the year equal at least:
- 90 percent of the tax you owe for the current year, or
- 100 percent of the tax shown on last year's return (whichever is smaller)
There is an important wrinkle for higher earners. If your prior-year adjusted gross income was over $150,000 (or $75,000 if married filing separately), the second threshold rises to 110 percent of last year's tax. Paying in even quarterly installments that add up to the safe-harbor amount is the cleanest way to stay protected.
Tip: A simple rule of thumb for many self-employed people is to set aside 25 to 30 percent of every payment you receive in a separate savings account, then pay your estimates from that account each quarter. You will never be caught short, and any surplus becomes a cushion for the April filing.
Do Not Forget Self-Employment Tax
One of the most common and most expensive mistakes is calculating only income tax and forgetting self-employment tax. Self-employment tax is 15.3 percent (12.4 percent for Social Security on earnings up to the annual wage base, plus 2.9 percent for Medicare with no cap) and it must be built into your estimated payments.
On $60,000 of net self-employment profit, the self-employment tax alone can run roughly $8,000 before any income tax. Your quarterly estimates need to cover both layers, which is exactly why so many first-year business owners are blindsided in April.
How to Pay: Federal and New York State
Paying the IRS is straightforward and free if you use an electronic method:
- IRS Direct Pay lets you send a payment directly from a checking or savings account at no charge, with no enrollment required.
- EFTPS (the Electronic Federal Tax Payment System) is a free government system that is well suited to recurring business payments. It requires a one-time enrollment, so sign up before your first deadline.
- You can also pay by debit or credit card through an approved processor, though card payments carry a fee.
New York residents have a second set of payments to make. New York State requires its own estimated tax payments on roughly the same quarterly schedule, filed and paid separately from the federal payments through the New York State Department of Taxation and Finance online services. If you operate in New York City, additional local taxes may apply depending on your entity. Budgeting for state estimates alongside federal ones keeps both governments satisfied and avoids two separate penalties.
Avoiding the Underpayment Penalty
If you pay too little or pay late, the IRS charges an underpayment penalty, which is effectively interest on the shortfall for the period it went unpaid. The interest rate is adjusted periodically and has been meaningful in recent years, so the penalty is not trivial.
The best ways to stay protected are to hit a safe-harbor amount, pay on time each quarter, and adjust mid-year if your income jumps. If you have a strong year, increase your remaining payments rather than waiting until April. If you fell behind early, you can sometimes reduce the penalty by paying more in a later quarter, though the timing rules are strict.
Estimated tax rules and safe-harbor figures change, and the dollar thresholds above should be confirmed against current IRS guidance for your tax year. A CPA can run your actual numbers and set a payment schedule that keeps you penalty-free without overpaying.
For self-employed clients across Long Island, Nassau and Suffolk County, and the tri-state area, JRH & Associates calculates quarterly estimates, files the vouchers, and keeps your federal and New York payments in sync all year. Explore our tax preparation services and the full range of accounting services we offer, or contact us to set up a plan.
This article is for informational purposes only and does not constitute tax or legal advice. Tax laws, deadlines, and safe-harbor figures change and vary by situation. Consult a qualified CPA before relying on any figure or strategy described here.