I haven’t received confirmation of my extention

[czarnick]

I filed an extension through TurboTax.  When will I know if it is exepted

[MarkZ]

TurboTax will send you an email to the address you have with the TurboTax account when the e-filed extension request is either accepted or rejected.

Use this TurboTax website to check the status of an e-filed extension request and if it was either accepted or rejected - https://turbotax.intuit.com/tax-tools/efile-status-lookup/