My return was rejected with the Code: ING-526. This is the first year I have e-filed with turbotax. We had previously used a CPA.

Here's what I find on the IRS reject codes website:
E-file reject IND-526: 'SpouseBirthDt' in the Return Header must match the e-File database. This rejection occurs when the date of birth for the second person listed on the return (the spouse) is either incorrect or doesn't match IRS records.

From Turbo Tax 

https://ttlc.intuit.com/replies/3300354