Final answer:
After contributing $1,000 to a traditional IRA, you can contribute up to $4,500 to a Roth IRA for the years 2014 and 2015, provided you are under age 50. For current contribution limits, check the latest tax laws or speak with a financial advisor.
Step-by-step explanation:
If you have already contributed $1,000 to a traditional IRA, the maximum amount you are then allowed to contribute to a Roth IRA for the years 2014 and 2015 is the remaining balance of the aggregate limit which is $4,500, assuming you are under the age of 50. Since the total contribution limit for both traditional and Roth IRAs is $5,500 for those under 50.
However, it's important to note that these numbers are from 2014 and 2015, and IRA contribution limits can change. To determine the exact amount for the current year, you should consult the latest tax laws or a financial advisor because the IRS often adjusts these limits for inflation.