You can file an extension of your tax return. If you owe taxes, they will need to be paid, but the extension will give you more time to complete your return. See how to file an extension below:
https://ttlc.intuit.com/replies/3301811
Also, see this FAQ about paying the taxes due - -there currently is an issue with the date of 4-15-19 not being accepted into TurboTax:
https://ttlc.intuit.com/replies/7419959
