My 71 y.o. mother passed in Dec 2019 and I was notified in Jan 2020 that she had me listed as sole beneficiary of a very old IRA which had $15k total in it. Instead of dragging out withdrawals, I elected for a lump sum payment. Federal tax was automatically withheld, however as I reside in Pennsylvania I'm unsure if (a) state taxes are owed [believe so] and (b) if so, what form I should use to pay an estimated tax. Any guidance is greatly appreciated.
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