What’s the 2018 IRA contribution deadline?

Traditional IRA as well as Roth IRA contributions must be made by the official April tax deadline of any given year. Since April 15 falls on a weekend in 2018, the due date for taxes and IRA contributions is April 17, 2018. SEP-IRA contributions are due before an individual files his or her tax returns, so either April 17, 2018, or October 15 if the taxpayer has filed for a six-month extension.