https://ttlc.intuit.com/community/taxes/discussion/tax-return-for-2018/01/16095#M7223 <P>if I efiled my return and then mailed the return by mistake what will happen</P> Sat, 23 Feb 2019 07:22:59 GMT peosouth 2019-02-23T07:22:59Z https://ttlc.intuit.com/community/taxes/discussion/tax-return-for-2018/01/16095#M7223 <P>if I efiled my return and then mailed the return by mistake what will happen</P> Sat, 23 Feb 2019 07:22:59 GMT https://ttlc.intuit.com/community/taxes/discussion/tax-return-for-2018/01/16095#M7223 peosouth 2019-02-23T07:22:59Z https://ttlc.intuit.com/community/taxes/discussion/re-tax-return-for-2018/01/16424#M7224 As long as the information is the same...They will end up rejecting the return you mail in. However this could end up delaying them processing your E filed return which in turn could delay your refund. But otherwise you should be fine. Just try to avoid doing this in the future. Sun, 24 Feb 2019 05:11:59 GMT https://ttlc.intuit.com/community/taxes/discussion/re-tax-return-for-2018/01/16424#M7224 Sky 2019-02-24T05:11:59Z