Shortcut - just use the "Federal Withholding - Taxable Wages" amount which represents how much wages are subject to federal tax (i.e., after pre-tax deductions).
I'll generally spot check my taxes in Q3 to see how far off things are. As long as you pay ~90% of the previous year's taxes you are generally fine. If it looks like you are going to be way off you can increase withholdings going forward or send the IRS a quarterly check.
As long as you are not too far off the penalties I have personally seen have been pretty small.
Shortcut - just use the "Federal Withholding - Taxable Wages" amount which represents how much wages are subject to federal tax (i.e., after pre-tax deductions).
curious how this factors in the tax underpayment penalty, especially in the years when income is less predictable (with volatile stocks)
https://www.irs.gov/payments/underpayment-of-estimated-tax-by-individuals-penalty
I'll generally spot check my taxes in Q3 to see how far off things are. As long as you pay ~90% of the previous year's taxes you are generally fine. If it looks like you are going to be way off you can increase withholdings going forward or send the IRS a quarterly check.
As long as you are not too far off the penalties I have personally seen have been pretty small.