How do i estimate total taxes owed for an extension

[KatrinaB]

You will need to deduct the total tax withheld and estimated tax payments from the total of all your income. You can also use TurboTax to find out how much you’ll owe, or use the TaxCaster calculator to get an estimate. Please view the Turbo Tax FAQ below for more information.

https://turbotax.intuit.com/tax-tools/tax-tips/Tax-Extensions/How-Do-I-Get-an-Extension-on-Taxes-/IN...