I will not be able to complete my spouses and my 2018 tax return until May 2018 sometime as I will need some additional information related to my rental properties that I do not currently have. As such, am I able to file my 2018 taxes using Netfile after April 30, 2019? If so, what is the last date in 2019 that I am able to Netfile my tax return using turbo tax? I am using the Premier Turbo Tax PC Download turbo tax product.