The IRS will be shutting down the Individual Form 1040 e-file servers for annual maintenance Saturday November 30. Lacerte will continue to accept these transmissions until 5PM Pacific, on this date. This does not impact the ability to file returns from the business modules. Once e-file opens again for Tax Year 2024, prior year returns can be filed from 2022 and 2023, while 2021 will NOT reopen for e-file. 

IRS MeF Production Shutdown Details:  https://content.govdelivery.com/accounts/USIRS/bulletins/3be0724