Steer Clear of IRS Penalties: How to Plan Your 2026 Estimated Tax Payments Now

Underpaying your taxes throughout the year can lead to IRS penalties, avoidable interest charges, and an unpleasant surprise at filing time. With the first estimated tax payment for 2026 due on April 15th, now is the perfect time to build a smart strategy. A little preparation today can help keep more of your hard‑earned money in your pocket—and out of the government’s hands.

As your trusted Winter Park FL tax preparer and provider of year‑round tax planning and financial guidance, we’re here to help you understand your options and avoid costly mistakes.

Use the Safe Harbor Rule for Predictable Payments

With tax laws continuing to shift—including last year’s major changes—the safe harbor method is one of the simplest ways to avoid underpayment penalties. This approach lets you base your 2026 estimated payments on your prior year’s tax liability.

Here’s how safe harbor works:

• Pay at least 100% of your 2025 total tax liability for 2026 to avoid penalties.
• Even if you owe additional tax when filing your 2026 return, you’re typically shielded from underpayment penalties.

Many taxpayers appreciate the predictability: just review your 2025 tax return and match that amount through your 2026 estimated payments. The downside? If your income falls in 2026, you could end up overpaying and waiting for a refund.

Higher Earners: Know the 110% Rule

If your adjusted gross income is expected to exceed $150,000, your safe harbor threshold increases. Instead of paying 100% of last year’s tax, you must pay 110% of your 2025 tax liability to avoid penalties.

This is a commonly overlooked rule—and missing it can be expensive. Make sure you understand which threshold applies to you before submitting estimated payments.

Base Your Payments on Expected 2026 Income

If you expect your income to stay the same—or decrease—this year, another option is to estimate your 2026 tax and base your quarterly payments on that amount. To avoid penalties, your total 2026 estimated payments must equal at least 90% of your final 2026 tax liability.

This method can be ideal if:

• Your income fluctuates.
• You anticipate lower earnings.
• You want to keep more money available throughout the year.

However, it requires accurate projections. If your income unexpectedly increases, you may fall short and owe penalties—so check in periodically and adjust if necessary.

Special Situations That May Require Adjustments

Certain life and financial events can significantly change your tax picture. If any of these apply, your estimated payments may need recalculation:

• Starting Social Security benefits – Adds new taxable income.
• Roth conversions – A rollover from a traditional IRA or 401(k) can create a large tax bill.
• Retirement plan withdrawals or RMDs – Required distributions can increase taxable income.
• Major life changes – Marriage, divorce, a new baby, college expenses, or retirement all impact your tax outlook.

Planning ahead ensures you’re not surprised by unexpected tax due at filing time.

Start Preparing Before the April Deadline

Getting ahead of your estimated tax payments can help you manage cash flow, avoid IRS penalties, and stay in control of your financial future. The earlier you review your 2026 tax expectations, the smoother your year will be.

If you’d like help reviewing your estimated tax needs, Cohn, Lopez & Associates is here to provide expert tax planning, tax preparation, and personalized IRS guidance.

Reach out today—we’d be happy to help you create a plan that keeps you compliant and penalty‑free.