Source of Hire Calculator

About the Source of Hire Calculator

Source of hire (SOH) identifies where your successful hires originate—whether from job boards, employee referrals, career sites, social media, agencies, campus recruiting, or other channels. By calculating the percentage of total hires from each source, you gain a clear picture of which channels are actually producing results versus which are consuming budget without delivering.

SOH is consistently ranked as one of the top three most valuable recruiting metrics by talent acquisition leaders. It directly informs budget allocation, channel strategy, and recruiter focus. For example, if employee referrals account for 35% of hires but receive only 10% of the recruiting budget, there's a clear opportunity to invest more in your referral program.

This Source of Hire Calculator lets you input hires from any channel and your total hires to compute the percentage. Use it across multiple channels to build a complete source mix analysis for your organization.

When This Page Helps

Without source-of-hire data, you're guessing which channels are worth your investment. This calculator turns raw hiring data into actionable channel percentages that reveal your best-performing sources and identify underperforming ones consuming budget without results.

How to Use the Inputs

1. Enter the number of hires from a specific source during the measurement period.
2. Enter the total number of hires across all sources for the same period.
3. Review the source of hire percentage for that channel.
4. Repeat for each sourcing channel to build your complete source mix.
5. Compare channel percentages against their share of recruiting spend.
6. Reallocate budget toward high-performing, cost-efficient sources.

Example Calculation

Tips & Best Practices

• Use your ATS source-tracking fields consistently to ensure accurate attribution.
• Audit source data quarterly for misattribution or missing entries.
• Combine SOH with quality-of-hire data to find sources that produce the best employees.
• Track SOH trends over time to see if channel effectiveness is shifting.
• Don't just track volume—calculate cost per hire by source for true ROI.
• Consider adding a "How did you hear about us?" question to capture organic sources.

Building a Source Mix Dashboard

Create a visual dashboard showing each source's share of total hires alongside its share of total recruiting spend. This side-by-side comparison immediately reveals over-invested and under-invested channels. Update the dashboard monthly for real-time visibility.

Source Quality vs. Source Volume

A source might deliver high volume but low quality, or low volume but exceptional quality. Pair SOH percentages with quality indicators like offer acceptance rate, first-year retention, and performance ratings by source. The best channels deliver both volume and quality.

Evolving Your Source Strategy

Source effectiveness changes over time as market conditions shift, candidate preferences evolve, and your employer brand grows. Continuously experiment with new channels while monitoring established ones. Allocate a portion of your budget to test emerging platforms and measure their SOH contribution.

Frequently Asked Questions

• What are the most common hiring sources?

  The top sources of hire in most organizations are employee referrals (30%), job boards (20–25%), career sites (15–20%), LinkedIn and social media (10–15%), staffing agencies (5–10%), and campus/events (5%). These percentages vary significantly by industry and company size.

• How do I attribute hires to the right source?

  Use your ATS source field consistently. For candidates who interact with multiple channels, most organizations use first-touch or last-touch attribution. Some advanced teams use multi-touch attribution models that allocate credit across all touchpoints.

• Why are employee referrals often the top source?

  Referrals leverage your employees' professional networks to find candidates who are pre-vetted for culture fit. They have higher offer acceptance rates, lower cost per hire, and typically faster time to fill than other channels.

• Should I track SOH by department or role type?

  Yes. Source effectiveness varies by role. Technical roles may come predominantly from LinkedIn and niche boards, while sales roles might come through networking events and referrals. Department-level tracking enables targeted channel strategies.

• How often should I audit my SOH data?

  Review SOH data monthly for trends and quarterly for strategic decisions. Annual reviews support budget planning. Ensure source fields in your ATS are being populated consistently by running regular data quality audits.

• What if a candidate applies through multiple channels?

  Establish a clear attribution rule. First-touch attribution credits the channel where the candidate first engaged. Last-touch credits the channel just before the application. Choose one method and apply it consistently for comparable data.