IRS is proposing changes to my 2018 Form 1040 tax return. Why didn't Turbo Tax catch this back then? I gave Turbo tax access to my Vanguard account

[katherinethinh]

IRS says I owe $2,839

[xmasbaby0]

What do you think TT did not catch?  Did you import data from Vanguard?  Did you CHECK it yourself to make sure it was accurate and complete?  Whenever you import data you still have to check it against your own copies of the documents and make sure it imported correctly from the site.

I RECEIVED A LETTER FROM THE IRS/STATE

TurboTax does not receive any information from the IRS or your state after your return was filed, so no one at TurboTax knows about a letter you received from the IRS or the state.

(what the letters from the IRS mean)

I GOT A LETTER FROM THE IRS   

https://ttlc.intuit.com/questions/3605673-i-got-a-letter-or-notice-from-the-irs

I AM BEING AUDITED

If you purchased Audit Defense:

https://ttlc.intuit.com/questions/2924451-i-bought-max-or-audit-defense-and-now-i-m-being-audited

AUDIT SUPPORT

TurboTax has a special phone number for help with IRS/state tax letters, which will be easier than going through regular Customer Support.   At the page below, click on the blue button that says "Get Help from TurboTax Support".  Then it will ask you what tax year is your letter.  Then it will ask you what the letter concerns. Then it will show you the phone number during posted business hours.

https://support.turbotax.intuit.com/irs-notice/audit-support/

[fanfare]

TurboTax is not as intelligent as they advertise it to be.

[NCperson]

By analogy, Turbo Tax is in the cake baking business.  They guarantee they will bake the cake correctly and it will taste GREAT,..... as long as all the ingredients are property added to the batter; if you fail to add an ingredient, which is your responsibility, they will not guarantee the cake bakes correctly nor will it taste great.