Estimated Tax Payment Mistakes That Trigger IRS Underpayment Penalties

Oscar Son01 Apr, 2026Business

So you’re running your own business or doing freelance work. Things are going pretty well. Then tax season rolls around and boom — the IRS slaps you with an underpayment penalty you didn’t see coming. Sound familiar? Here’s the thing. When you work for an employer, taxes get pulled from your paycheck automatically. But when you’re self-employed? That responsibility falls squarely on you. And honestly, most people mess this up at some point. If you need guidance navigating quarterly payments, consulting an Accountant Staten Island NY can save you from costly mistakes down the road.