Amending your tax return won't actually affect the timing, or processing, of your original return at all.
If you've already submitted (e-filed or paper mailed) your original tax return, and now find yourself in the position of needing to change (i.e., amend) something, then the sequence of events normally should go as follows:
1) IRS (and state, if applicable) receive taxpayer's original (with errors) return
2) Taxpayer waits until original tax return (with errors) is processed and refund is issued by the government
3) After original tax return (with errors) is processed by the government, the taxpayer then completes an amended tax return, fixes any errors with the original return, and then paper-files the amended tax return by traditional postal mail. Amended returns cannot be e-filed, according to IRS rules.
So, for an amended tax return,
you have to wait until the original (wrong) tax return is filed, processed and
a tax refund issued (or payment check to the government cashed). That can
take a couple of weeks. After this has happened, you can then file a new,
amended, tax return to either correct a mistake, or to add additional
information.
Therefore, since you need to wait for your original refund to work its way through the system before you file an amended return, your amended return filing won't delay or affect the timing or receipt of your original refund at all.
While the amended filing
process for the 2016 tax year is not yet available in TurboTax, it will be
soon. Here are a pair of links you can use to learn more about amended
tax returns, and specifically our TurboTax process for doing so in 2016 (the
webpages at this links will be updated accordingly with new information, when
available). Hopefully you will find them helpful.
Thanks for asking such an important and timely question!
https://ttlc.intuit.com/questions/1908543-do-i-need-to-amend-my-tax-return
https://ttlc.intuit.com/questions/2952222-how-do-i-amend-my-2016-turbotax-online-return
