I completed my taxes by e-filing with turbotax and I also completed form 9465. My question is do need to mail that form to IRS or did go when I e-filed my taxes

[Rachel_W]

If you completed Form 9465 prior to e-filing your Tax Return, then it was e-filed along with your Tax Return.

You can check out this IRS link for more information on installment agreements: https://www.irs.gov/individuals/payment-plans-installment-agreements.