A SEP contribution of $8,000 requires a net profit from self-employment of at least $43,040. With that much net profit, the amount that you contribute to the SEP IRA has no effect on the amount that you are permitted to contribute to the regular traditional and Roth IRAs. The contributions to the regular traditional and Roth IRAs combined would be subject to the separate annual limit of $7,000 if under age 50 or $8,000 if over 50. (The Roth IRA contribution could be limited based on Modified AGI for the purpose, but whatever portion of the annual limit cannot be contributed to the Roth IRA could be contributed to the traditional IRA.)
