Preboarding and Onboarding with ATS: Keeping New Hires Engaged from Offer to Day One

The Gap Between Offer Acceptance and Day One

There is a moment in every new hire's journey that most employers treat as administrative downtime: the period between signing the offer and arriving for their first day. It might be two weeks. It might be two months, particularly for candidates who need to serve notice at their current employer.

During that window, new hires are making decisions. They are comparing their new employer against competing offers they may have received simultaneously. They are forming impressions based on every interaction — or absence of interaction — with the company. And they are starting to wonder whether the role they just accepted will live up to the promises made during the interview process.

Research from the SHRM Foundation indicates that new hires who experience a structured preboarding process are 58% more likely to still be with the organisation after three years. Despite this, fewer than 30% of organisations have any formal preboarding programme in place.

Preboarding vs. Onboarding: Understanding the Distinction

The terms are often used interchangeably, but they describe different phases with different goals.

Preboarding is everything that happens after offer acceptance and before Day One. Its primary goal is maintaining enthusiasm and reducing pre-start anxiety. This includes welcome communications, administrative task completion, equipment provisioning initiation, and cultural immersion content.

Onboarding is everything from Day One through the new hire's full integration — typically defined as the point where they are operating at full independent productivity. For most roles, this is 30 to 90 days. For complex or senior roles, full integration can take six to twelve months.

The distinction matters because the tactics, content, and responsible parties differ across these phases. Preboarding is largely an HR function. Onboarding requires active involvement from the hiring manager, IT, finance, and the new hire's immediate team.

Why Most Preboarding Fails

When organisations attempt preboarding at all, they typically send a generic welcome email on the day of offer acceptance, then go silent until a week before the start date — at which point they send a logistics email about where to park and who to ask for at reception.

This approach fails because it treats preboarding as a communications task rather than an engagement task. The new hire does not need information about parking. They need to feel like they made the right decision. They need to feel connected to the team before they walk in the door. And they need the practical tasks (contracts, forms, system access) handled efficiently so they can focus on that connection.

What Effective Preboarding Looks Like

Effective preboarding is structured, sequenced, and personalised. It does not bombard the new hire with information in a single email — it delivers the right content at the right time over the weeks leading up to Day One.

Week 1 After Offer Acceptance: Welcome and Connection

• Personalised welcome email from the hiring manager (not a generic HR template)
• Introduction to the new hire's buddy or onboarding point of contact
• Links to company culture content — team videos, company blog, social channels
• Invitation to any relevant Slack channels or team communication tools
• Digital contract and document signing initiated

Week 2–3: Administrative Completion and Role Context

• HR onboarding paperwork completed digitally (tax forms, banking details, emergency contacts)
• IT equipment order confirmed and delivery timeline communicated
• Role-specific reading material shared (product documentation, team processes, relevant case studies)
• Introduction email sent to the new hire's future teammates
• Access provisioning requests raised with IT

One Week Before Start Date: Logistics and Excitement

• Day One agenda shared (meetings, team lunch, key introductions)
• Practical logistics confirmed (location, access badge process, dress code)
• Manager check-in call or video conversation
• First 30-day goals document shared for review and discussion
• IT setup confirmed and access credentials ready

The 30-60-90 Day Onboarding Plan

Effective onboarding does not end after the first week orientation session. Research from the Brandon Hall Group shows that organisations with structured 90-day onboarding programmes improve new hire retention by 82% compared to those without. The 30-60-90 framework gives both the new hire and their manager clear milestones to work toward.

Days 1–30: Orientation and Learning

The first 30 days should prioritise learning over delivering. New hires need to understand the company, the team, the tools, and the role before they can perform at full capacity. Goals in this phase are typically learning-oriented: complete all onboarding training, meet all key stakeholders, understand the top three priorities of the team, and deliver one small contribution to build confidence.

A common mistake is expecting full productivity by Day 30. This creates anxiety in the new hire and frustration in the manager when expectations are not met. Well-structured 30-day plans explicitly state what the new hire is expected to learn, not just what they are expected to produce.

Days 31–60: Contributing Under Guidance

The second month shifts toward contribution with support. The new hire should now be executing independently on defined tasks, with their manager available for guidance rather than instruction. Goals become more output-oriented: deliver first project, identify one process improvement opportunity, present initial findings on a given problem.

Regular 1:1 check-ins during this phase are essential. Structured check-ins with a defined agenda (what is going well, what is challenging, what support is needed) surface problems before they become attrition risks.

Days 61–90: Full Contribution and Ownership

By Day 90, the new hire should be operating with full ownership of their defined responsibilities. Goals in this phase are typically impact-oriented: hit defined OKRs, complete their first performance cycle, have a clear development plan in place.

At the 90-day mark, a formal review conversation — distinct from regular 1:1s — serves two purposes: it assesses integration progress, and it demonstrates to the new hire that the organisation is invested in their development beyond the initial hiring period.

Remote and Hybrid Onboarding: Additional Considerations

Remote and hybrid work has made effective onboarding significantly harder. New hires joining a remote-first team cannot absorb company culture through osmosis — overhearing conversations, observing how decisions are made, or having spontaneous coffee conversations with colleagues. All of that contextual learning must be deliberately designed into the onboarding programme.

ATS platforms that extend into onboarding make remote preboarding significantly easier to manage. Rather than relying on a recruiter to manually send the right content at the right time, automated sequences deliver structured communications on a defined schedule, task lists notify the right people when action is required, and nothing falls through the cracks because someone was on leave or managing a competing priority.

The Role of Your ATS in Onboarding

Traditionally, ATS platforms end at the point of hire — the candidate is marked as "Hired" and the system's role is complete. Modern ATS platforms extend this relationship through preboarding and into the early onboarding phase, serving as the coordination hub for the complex set of tasks that must happen between offer acceptance and full integration.

The most valuable ATS capabilities for onboarding are:

Automated Trigger-Based Workflows

When a candidate's status changes to "Offer Accepted," a cascade of tasks and communications should trigger automatically. This includes sending the welcome email, initiating document signing, notifying IT of equipment needs, assigning the buddy, and creating calendar invites for the first-week schedule. None of this should require manual intervention from a recruiter who is already managing multiple open roles.

Multi-Stakeholder Task Management

Onboarding involves HR, IT, the hiring manager, the direct team, and often finance and legal. Coordinating all of these via email chains is chaotic and produces gaps. An ATS onboarding workflow assigns tasks to specific owners, sets due dates, and tracks completion — providing a single view of where each new hire stands in the onboarding process.

Document Management and e-Signature

Contracts, policy acknowledgements, NDA agreements, and tax documentation should all be handled digitally, within a GDPR-compliant system. Paper-based document processes introduce delays, create compliance risk, and degrade the new hire experience. GDPR-native platforms like Treegarden handle document storage with the appropriate data retention and access controls built in from the outset.

Handover from Recruiter to HR Business Partner

Once a hire is made, the relationship transitions from recruiter to HR business partner and hiring manager. A structured handover note — capturing key insights about the candidate, their motivations, any commitments made during negotiation, and their development aspirations — ensures nothing is lost in the transition and the new hire does not have to repeat themselves.

Measuring Onboarding Effectiveness

What gets measured gets managed. Onboarding effectiveness should be tracked through a defined set of metrics reviewed at regular intervals:

• 90-day retention rate: Percentage of new hires still with the company at Day 90. Benchmark: 85% or above.
• Time-to-productivity: How long until the new hire is performing at the expected level for their role. Track by role type and compare against historical baselines.
• New hire satisfaction score: A structured pulse survey at 30 and 90 days covering specific onboarding dimensions — clarity of role, quality of manager support, adequacy of training, and cultural integration.
• Hiring manager satisfaction: Whether the new hire is meeting expectations at each milestone. Low hiring manager satisfaction at Day 60 is an early warning signal for potential attrition or performance issues.
• Onboarding task completion rate: What percentage of required onboarding tasks were completed by whom and on what timeline. High incompletion rates indicate process gaps or ownership problems.

Five Onboarding Mistakes to Avoid

1. Treating Day One as Onboarding Start

Day One orientation overwhelm — back-to-back presentations, policy lectures, and system demos — is a poor use of the only day when a new hire is both fully attentive and completely unencumbered by work responsibilities. Reserve orientation content for preboarding and use Day One for human connection.

2. One-Size-Fits-All Onboarding

A junior developer and a VP of Engineering both start on the same date. Their onboarding programmes should look almost nothing alike. Role level, function, remote vs. on-site, and whether the hire is a first-time employee vs. an experienced professional all require differentiated onboarding tracks.

3. Leaving the Hiring Manager Out

HR cannot onboard a new hire in isolation. The hiring manager's involvement in the first 30 days — weekly structured 1:1s, clear goal-setting conversations, honest feedback — is the single biggest driver of new hire retention. Onboarding programmes that treat the manager as a passive participant rather than an active owner produce predictably poor outcomes.

4. Skipping the 90-Day Review

Many organisations conduct an informal end-of-probation conversation but call it a "90-day check-in." A structured 90-day review — with documented outcomes, agreed development priorities, and a forward-looking plan — signals commitment to the employee's growth and creates a clear record of expectations on both sides.

5. Not Asking for Feedback on Onboarding Itself

New hires are the most reliable source of onboarding feedback because they experienced the programme immediately. A structured post-onboarding survey at Day 90 — asking specifically about what was useful, what was missing, and what could be improved — provides actionable input to refine the programme for the next cohort.

Frequently Asked Questions

What is the difference between preboarding and onboarding?

Preboarding covers the period between offer acceptance and the new hire's first day. Onboarding covers the period from Day One through the new hire's full integration — typically 30 to 90 days. Preboarding focuses on maintaining engagement and handling administrative tasks before the start date, while onboarding focuses on role-specific learning, team integration, and productivity ramp-up.

How long should onboarding last?

Research consistently shows that effective onboarding should last at least 90 days, and ideally up to 12 months for complex roles. Many companies make the mistake of compressing onboarding into a single orientation week. Structured 30-60-90 day plans with check-ins and milestones produce significantly better 12-month retention rates than unstructured approaches.

Can an ATS manage onboarding workflows?

Yes. Modern ATS platforms extend beyond recruitment into the preboarding and early onboarding phases. This includes automated welcome communications, document collection, task checklists for HR and IT teams, calendar invites for Day One activities, and handover workflows from recruiter to hiring manager to HR business partner. Treegarden supports preboarding workflows triggered automatically at offer acceptance stage.

What should a preboarding checklist include?

A comprehensive preboarding checklist includes: sending a personalised welcome email within 24 hours of offer acceptance; sharing team introduction videos or company culture content; collecting signed contracts and tax forms; initiating IT equipment provisioning; setting up system access requests; introducing the new hire to their buddy or manager via email; sharing the agenda for their first week; and sending a Day One logistics briefing (location, parking, dress code, who to ask for).

What is the cost of poor onboarding?

Poor onboarding is expensive. Research from the Brandon Hall Group shows that organisations with strong onboarding improve new hire retention by 82% and productivity by over 70%. Conversely, the cost of replacing an employee who leaves within 90 days is typically 50–200% of their annual salary when you account for recruiting costs, training investment, lost productivity, and team disruption.