Yes. Roth IRA's are funded with "after-tax" dollars and you can generally contribute as long as you have enough earned income and don't go over the contribution limits of $5,500/$6,500 over 50, or the income limits. Your Roth IRA phases out at $120,000–$135,000 Single, $189,000–$199,000 Married filing jointly, $0–$10,000 Married, filing separately.
You can contribute to a traditional or Roth IRA whether or not you participate in another retirement plan through your employer or business.
