The first 90 days determine whether a new hire thrives or quits. This onboarding checklist covers everything from pre-arrival setup to their 90-day review, so nothing falls through the cracks.
| Phase | Key Tasks |
|---|---|
| Before Day 1 | Equipment, accounts, workspace, welcome email, team intro |
| Day 1 | Office tour, team lunch, company overview, tools setup, HR paperwork |
| Week 1 | Role training, buddy assignment, first project, 1-on-1 with manager |
| Month 1 | Deep-dive training, customer/product knowledge, first review |
| Month 2-3 | Independent work, stretch goals, 30/60/90 day check-ins |
Research shows companies with structured onboarding programs retain significantly more new hires than those without. HR studies consistently find that replacing an employee can cost 50–200% of their annual salary in recruiting, training, and lost productivity costs. A structured onboarding checklist is one of the cheapest ways to protect that investment.