Why is this important?
Your age is one of several key variables used in determining your IRA contribution eligibility and contribution amount. Traditional IRA contributions are not allowed for the year in which you reach age 70½, or for subsequent years. However, you may still be able to contribute to a Roth IRA if otherwise eligible. Also, your age is used to determine whether you are age-eligible for a catchup contribution.
Warning: For most taxpayers, the deadline for making 2018 IRA contributions was April 15, 2019. However, there are limited exceptions. If you believe you may qualify for one of these limited exceptions, consult with your tax advisor to determine if you have an extended deadline.