Published: 9/8/2025
If you have not already done so, now is the time to review your tax situation and make an estimated quarterly tax payment using Form 1040-ES. With the passage of the One Big Beautiful Bill Act (OBBBA), forecasting your tax obligation is now more important than ever. You have two quarterly estimated tax payments due dates available to you after the passage of the bill in July: one payment due by September 15th and another due in January 2026. Spend some time adjusting your tax obligation and reforecasting your estimated tax obligation.
3rd Quarter Due Date: Monday, Sept. 15, 2025
You are required to withhold at least 90 percent of your 2025 tax obligation or 100 percent of your 2024 obligation.* A quick look at last year’s tax return and a projection of this year’s obligation can help determine if a payment is necessary. Here are some other things to consider:
So spend some time now to calculate your estimated tax liability. And remember that to avoid any underpayment penalties, simply use last year’s tax as a baseline.
*If your income is more than $150,000 ($75,000 if married filing separately), you must pay 110 percent of your 2024 tax obligation to be safe from an underpayment penalty.
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