Thank you.
As a non expert I use TurboTax to calculate my next year's estimated payments to avoid underpayment penalties.
But, by the second half of the following year as I find out more of what my capital gains will really be for that year, I wish there was a simple tool to enter the real numbers and find out if I can reduce the final estimated payments.
Is there a tool that allows one to do that 'simply'?
