https://ttlc.intuit.com/. Do you need to file a tax extension? When you file a tax extension, you have until October 15th to file your taxes, but you do not receive extra time to pay your taxes if you owe. Learn more about what to do if you need to file a tax extension in this helpful video from TurboTax Support. For more answers to your questions, visit TurboTax.com/Support