April 18* is the deadline for your 2015 IRA contribution. If you did not contribute money to your IRA(s) during 2015 or contributed less than the maximum, you still have time to do so.
For 2015, the maximum amount you can contribute to an IRA (or across multiple IRAs, if you have more than one) is $5,500. If you turned 50 during 2015, your contribution limit is $6,500.1,2
Beat the rush and make your contribution well before the deadline. If you make your contribution at the last minute, you risk being at the mercy of technology issues and you may not have time to address errors.
The most common error people make is failing to specify the year of the contribution. Many IRA contributions are made in the weeks before the annual deadline, and as some IRA owners hurry to meet the deadline, they fail to tell their IRA custodian that their contribution is for the previous tax year.
If you do not indicate that your contribution is for the 2015 tax year on your check or deposit, the IRA custodian may apply it to 2016 instead (as 2016 IRA contributions have been allowed since the start of this year). So be sure to make that clear.1,2