| Principal LifeTime 2015 Fund | Advisors Select Class | — | Yes |
| Principal LifeTime 2015 Fund | Institutional Class | LTINX | Yes |
| Principal LifeTime 2015 Fund | Advisors Preferred Class | LTAPX | Yes |
| Principal LifeTime 2015 Fund | Advisors Signature Class | — | Yes |
| Principal LifeTime 2015 Fund | Preferred Class | LTPFX | Yes |
| Principal LifeTime 2015 Fund | Select Class | — | Yes |
| Principal LifeTime 2025 Fund | Select Class | — | Yes |
| Principal LifeTime 2025 Fund | Institutional Class | LTSTX | Yes |
| Principal LifeTime 2025 Fund | Advisors Select Class | — | Yes |
| Principal LifeTime 2025 Fund | Advisors Preferred Class | LTVPX | Yes |
| Principal LifeTime 2025 Fund | Advisors Signature Class | — | Yes |
| Principal LifeTime 2025 Fund | Preferred Class | LTPDX | Yes |
| Principal LifeTime 2035 Fund | Advisors Select Class | — | Yes |
| Principal LifeTime 2035 Fund | Advisors Preferred Class | LTAOX | Yes |
| Principal LifeTime 2035 Fund | Advisors Signature Class | — | Yes |
| Principal LifeTime 2035 Fund | Preferred Class | LTPEX | Yes |
| Principal LifeTime 2035 Fund | Select Class | — | Yes |
| Principal LifeTime 2035 Fund | Institutional Class | LTIUX | Yes |
| Principal LifeTime 2045 Fund | Advisors Select Class | — | Yes |
| Principal LifeTime 2045 Fund | Advisors Preferred Class | LTRVX | Yes |
| Principal LifeTime 2045 Fund | Advisors Signature Class | — | Yes |
| Principal LifeTime 2045 Fund | Preferred Class | LTRDX | Yes |
| Principal LifeTime 2045 Fund | Select Class | — | Yes |
| Principal LifeTime 2045 Fund | Institutional Class | LTRIX | Yes |
| Principal LifeTime 2055 Fund | Advisors Select Class | — | Yes |