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The OCN costs $300 for ONS members and $420 for non-members. Here’s the cost
picture and how to apply, per ONCC.
How much does the OCN cost?
| Status | Exam fee |
|---|---|
| ONS member | $300 |
| Non-member | $420 |
The $120 difference means ONS membership can offset much of its cost — and members get
oncology education resources — so it’s worth comparing before you apply.
How to register, step by step
- Confirm eligibility. Verify your license, RN experience, and oncology hours.
- Apply through ONCC. Submit your application and fee online.
- Receive your testing window and schedule your computer-based exam.
- Test. 165 questions, 3 hours.
Unlock 3,000+ OCN practice questions across 15 full-length simulators — $19.99 lifetime →
Sources & references
The exam facts on this page are drawn from official certifying-body materials, reviewed 2026-06-18 by the DrCertifications exam-prep team (10+ years in exam preparation and publishing).