Removing excess Roth

I need to contact Vanguard to remove excess Roth contribution made last year.  I understand they will remove the excess plus gains, and I will pay taxes on the gains.  I think they give me a form 1099-R? Question: how will I report this when using TurboTax? If I still say I added the $ to my Roth, it will automatically impose the 6% penalty, or am I missing something or a process?