How to Build a Leadership Development Business Case for 2027
A strong leadership development business case for 2027 connects the leadership gaps your organization is already paying for, such as manager turnover and stalled promotions, to a program designed to close them, and it measures leadership development ROI with the formula your finance department knows.
Key takeaways
Manager engagement fell from 27% to 22% in a single year, according to Gallup, making leader development one of the most urgent people investments heading into 2027.
Leadership development ROI uses a formula any CFO recognizes: total tangible benefits minus program cost, divided by program cost, multiplied by 100.
Gallup estimates that replacing a leader or manager costs around 200% of their salary, and that 42% of voluntary departures could have been prevented.
Henley's LeaderPaD program alone produces an estimated $2.35 million in annual net savings after program costs.
The strongest business cases begin with a listening conversation with your C-suite and business leaders, well before a single slide is built.
Budget season may have a particular feeling for HR leaders. You walk into the room carrying something you have watched work: a manager who finally learned to stay steady in a hard conversation or a team that stopped losing people after its director changed how she led, and you are asked to translate it into a line item that can hold its own beside software renewals and headcount requests. Most of the HR leaders we talk with already know leadership development matters. What wears on them is the translation, along with the quiet worry that the work they believe in most will be the first thing trimmed when the numbers get tight.
We wrote this for you and for that conversation, with everything we would want in your hands if we were sitting beside you.
Why is leadership development a 2027 budget priority?
Managers are carrying more strain than they have in years, and HR leaders across the profession agree that developing them comes first.
Gallup's 2026 State of the Global Workplace report found that manager engagement fell by 5 points in a single year, from 27% to 22%, leaving managers increasingly engaged only as much as the people they lead (Gallup). When the people responsible for carrying the strategy into daily work are running low, every other initiative on your roadmap inherits that fatigue.
Your peers are feeling the same pressure. Gartner's CHRO community research found that leader and manager development remains the top CHRO priority for the second consecutive year (Gartner/Evanta), and SHRM's 2026 State of the Workplace report found that employers name effective leadership and management as their primary workplace need (SHRM). You are walking into this budget cycle with more support behind you than it may feel like.
What does the research say about leadership development ROI?
Leadership development ROI is measured the same way finance measures any investment, and retention is usually the most defensible benefit to put in the calculation.
The formula finance already uses
In SHRM's guide to measuring leadership development ROI, Patti Phillips of the ROI Institute lays out the formula: (Total tangible benefits – total program cost) / total program cost x 100 = ROI (SHRM). The arithmetic is familiar to any CFO, and the real care goes into naming the tangible benefits honestly.
Why retention carries the most weight
Gallup estimates that replacing a leader or manager costs around 200% of their salary, and 42% of employees who voluntarily left their organization said their manager or organization could have done something to keep them (Gallup). That second number is the one we would underline in your deck. More than four in ten departures are ones someone could have prevented, and a great deal of that prevention lies in how managers lead.
What the return looks like inside Henley's programs
Henley's Leader Potential and Development program, LeaderPaD, pairs a validated leadership potential assessment and multi-rater feedback with sustained one-on-one coaching, and it has run continuously for 16 years. Within that program, we estimate $2.35 million in annual net savings through retention and promotion outcomes, after program costs. That figure comes exclusively from LeaderPaD, and we share it because it models the kind of number a budget conversation needs, one tied to a single program and measured against outcomes finance already tracks, with the program's own cost already taken out.
Our nine-month Inside-Out Leader Development program, IOLD, shows the same story from the participant's side. Across hundreds of leaders in enterprise engagements over five years:
84% report a positive impact on their job performance.
76% report an increased desire to stay with their organization.
100% of alumni surveyed, many of whom completed the program years ago, report they are still applying its tools in their day-to-day leadership.
That kind of staying power is rare in leadership development, and it matters to your business case because the return on a program keeps building for as long as leaders keep using what they learned.
Want results like these for your own leaders?
We'll help you scope a program around the leadership gaps your organization is already paying for, and show you how we'd measure return.
Book a Discovery Call >
A 30-minute conversation about your leaders and your budget timeline. You'll leave with a clearer picture of what a program could look like for your organization, whether or not we work together.
What is the ROI of leadership and executive coaching?
Coaching earns its return over time, with new ideas that guide the real decisions leaders face long after a workshop ends.
Coaching is the part of a program most likely to be questioned when budgets tighten, which is exactly why it deserves its own place in your business case. Employers have largely settled the question of whether it belongs in their development strategy: the 2025 ICF Global Coaching Study found that more than half of coaching clients are employer-sponsored (International Coaching Federation).
Across Henley's coaching engagements, 76.7% of participants anticipate staying with their organization 18 months out, a retention signal you can place directly beside Gallup's replacement-cost benchmark when you build your numbers.
Something real and irreversible tends to happen to leaders when someone stays with them through the process. One IOLD participant described it this way: "By shifting from a rescuer mindset to a coaching approach, I empower others to take ownership of their work, manage my own stress more effectively, and focus my time on higher-value initiatives that drive stronger outcomes." We offer that same sustained attention through one-on-one leadership coaching for people leaders and executive coaching for senior leaders carrying organization-wide responsibility.
What should HR leaders bring to the budget conversation?
Bring a business case based on the problems your stakeholders have already identified, and start by listening before you build anything.
Try this: the pre-budget listening conversation
Before you build a single slide, sit down with your CFO and two or three leaders from the business, and ask them what leadership gaps are already costing them. Ask about the manager's departure that set a team back for months, or the promotion that stalled because no one internal was ready to step up. Write down their words exactly as they say them.
This conversation changes what you bring back. Your business case becomes a response to problems your stakeholders have already named, in language they already use, and the proposal is an answer to their own question. You will also learn which measures matter most to the people approving the budget, whether that is regretted manager turnover or the time it takes to fill a leadership role.
When you return, bring a short business case that includes:
The problem, described in your stakeholders' own words.
The estimated cost of that problem, using Gallup's replacement-cost benchmark applied to your own manager salaries and departures.
A program designed around the specific gaps they named.
The outcomes you will measure, agreed with finance before launch.
The ROI formula, applied honestly, with a date for when you will report back.
What does a leadership development program need to include to move the needle?
Programs that return their investment share a handful of design choices, and naming them in your business case shows that yours is built to last.
Many leadership programs are remembered fondly and then quietly fade from daily use. The ones that keep paying off tend to include:
Coaching that runs the length of the program. Sustained one-on-one coaching across six to nine months gives new tools a place to take root in real work, long after the first session.
Honest data at the start. A multi-rater or validated leadership assessment establishes a clear picture before any development plan is built, and it gives you a baseline to measure against later.
Learning alongside peers. Cohort learning lets leaders test new tools with colleagues facing similar challenges, and it builds a shared leadership language that travels back into their teams.
A sponsor who shows up. In one of our longest-running enterprise programs, the executive sponsor did her own development work first and kicked off the cohort in person. Her visible commitment gave the program a multi-year runway, and the tool adoption and retention results followed.
Measurement agreed before launch. Decide with finance which outcomes you will track, such as retention and promotion among participants, so the evidence is ready when next year's budget conversation arrives.
How does Henley Leadership Group help HR leaders build the case and deliver results?
Henley designs, runs, and measures the program with you, so your team gains results without getting just another project to manage.
We know what your week looks like, with succession planning, engagement results, a reorganization still settling, and managers coming to you tired and looking for help, and the last thing you need is a program that becomes one more thing to administer. Henley runs the whole program with you from start to finish, from coach matching and scheduling to assessments and check-ins, and we gather data along the way so your next budget conversation begins with results already in hand. We also stay. Many of our client relationships have run for years, some for more than a decade, because the work of becoming a better leader keeps going after a program formally ends.
“HLG transforms leaders at all levels– the results are a culture change across the organization.”
— Director @ Microsoft
For more than 20 years, Henley Leadership Group has designed leadership coaching and development for organizations across technology, energy, healthcare, and the public sector, from our home in Seattle throughout the Pacific Northwest and beyond. Alongside one-on-one coaching with ICF-certified coaches, we offer two cohort programs: IOLD for organizations building a shared set of leadership tools, and LeaderPaD for organizations developing a bench of high-potential leaders. When an organization trusts us with its leaders, we do not take a single moment of that lightly.
Ready to build your 2027 business case?
If you are preparing for budget season now, we would love to help. Bring us the gaps your leaders named in those listening conversations, and we will help you shape a program, and a business case, that answers them.
Frequently asked questions about leadership development ROI:
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A proposal that connects specific leadership gaps, such as manager turnover, to a program designed to close them, with the cost of those gaps, the program's cost, and the expected return.
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Subtract total program cost from total tangible benefits, divide by total program cost, and multiply by 100, using the ROI Institute formula featured by SHRM.
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Gallup estimates replacing a leader or manager costs around 200% of their annual salary.
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Coaching ROI is usually measured through retention and promotion outcomes. Within Henley's LeaderPaD program alone, estimated annual net savings reach $2.35 million after program costs.
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Sustained coaching, honest assessment data at the start, peer learning, an engaged executive sponsor, and measurement agreed with finance before launch.
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Henley's programs run six to nine months, with early signals appearing during the program and retention and promotion outcomes building over the following year.