Get your taxes done using TurboTax

Ah ok cool. So yeah I've been seeing the "you may elect to treat the tax withheld as paid when it was actually withheld" part in the underpayment penalty section. What's the different between electing Yes vs No to this question? I was always choosing yes (and then putting in the amounts I paid each quarter which is the same as what I put in the withheld taxes in the tax credits section, I'm realizing now maybe I should have put my total taxes withheld including W2 and my own estimate payments. But how would I know my W2 withholdings by quarter?), but maybe I should be doing No instead and it would do the default calculation?

Now it seems to be messed up and thinking I want to annualize even though I've answered no to that question so I might just be out of luck.