Would making a payment now toward Fed income taxes owed owed in 2025 help me avoid a penalty?

Yes, I’m stupid, let’s get that out of the way up front.

I know that we – spouse and I – have under paid Federal taxes in 2025. We are both W2 employees in sales and had a good year. I don’t know exactly how much we owe, but I bet it’s around $100k.

Yes, my next step is getting a CPA. But my question is, if I go online today and make a payment, could that help me avoid all or a portion of underpayment penalties when it comes time to file in early 2026?