Hi there, @triciaheard,
Let's correct the calculation of your federal estimated taxes by updating your tax profile information. Please follow the steps listed below for your guidance.
I've also added this article: How we calculate estimated tax payments for more details. This link includes three main things on how your taxes are calculated:
Feel free to read through this page: Pay Federal Estimated Quarterly Taxes. This link provides detailed steps on how to pay your returns online or via mail payment.
Fill me in if there's anything else you need with your taxes and I'd be glad to help you out.