Hello. This was my situation the previous year, but in California (2022 disaster, tax payments extended until October 2023, then dealing with the underpayment penalty in the spring of 2024).
Since your return is complete, go ahead and file, but don't pay anything that's due until your Payment Extension Date, which in your case is August (unless they extend it again, which they did for California). When you file in 2025 for the 2024 calendar year, Turbo Tax may calculate an underpayment penalty (it did for me). At that time (spring of 2025, when you figure your 2024 taxes) you can request a Waiver of Penalty - some replies to my question about that said that the Request for Waiver is built in to Turbo Tax, but I didn't see it. What I did, and you really don't need to worry about this until next spring, is that I went from Step-by-Step view to Forms view in the Turbo Tax program. From there I went to form 2210 and manually checked the Waive all Penalties box and added the Statement that I was in a disaster area and wasn't required to pay the taxes until August (or whatever your final payment date becomes). The IRS will know from your address that you don't owe the penalty, but this will get the Underpayment Penalty off of Turbo Tax's Form 1040.
I don't know how the State of Hawaii is handling it; if they follow the Federal guidelines, as California does, you'll do the same thing for them. If not, you'll need to do some quick research.
Hope this helps!
