See this TurboTax support FAQ for a federal extension - https://ttlc.intuit.com/community/extensions/help/can-irs-extensions-be-e-filed/00/25884
See this TurboTax support FAQ for a state extension - https://ttlc.intuit.com/community/extensions/help/do-i-need-to-file-a-state-extension-if-so-how-do-i...
