Why has the IRS not accepted my return yet

[DoninGA]

The IRS officially opens on January 27.  On or after that date your tax return will either be accepted or rejected.   If accepted by the IRS use the federal tax refund website to check the refund status -   https://www.irs.gov/refunds

[Katie1825]

They rejected  saying the AGI is different for my husband that passed away.  

[DaraLO]

This is an issue we're seeing with those filing a return that includes a deceased spouse.  It is possible that the Social Security Administration has blocked your husband's social security number, preventing successful e-filing of your return.  In this case, you will need to print and mail your return.  Refer to the following TurboTax FAQ for instructions:  How do I print and mail my return in TurboTax Onli ...

My condolences to you on your loss.