Change my tax return

Unfortunately, if you have already filed you cannot change your tax. You will need to wait until the IRS either rejects or accepts your return.  If your return is rejected, you will be able to go into your account and make the necessary changes and re-submit your return.  If the IRS accepts your return, you MUST wait until it has been fully processed and you receive your refund or have paid your balance due.  

The IRS may catch the error and make the correction for you.  If not, you will need to prepare an amended tax return and mail it in. Form 1040X to amend will not be finalized until later this year. You cannot e-file an amended return.  They have to be mailed, and it takes at least a couple of months for the IRS to process an amended return. In the meanwhile, DO NOT go in and make any changes to your return. Three weeks after you mail your amendment, you can start tracking its progress at the IRS Where's My Amended Return? site.

Instructions to amend can be found here:  https://ttlc.intuit.com/replies/3288565