Workforce planning is working out how many people, with which skills, a business will need over the next year or two, comparing that with the people it will actually have, and deciding how to close the gap at a cost the business can afford. For an HRBP, it usually starts with one request from a business head: "Give me next year's headcount plan." This guide shows how to build that plan properly, in five steps, with an illustrative Indian example and a free Excel model that does the arithmetic.
Most headcount plans fail in the same way. They start from last year's headcount, add a percentage for growth, and are never connected to the business plan, to expected attrition or to the budget. The process below fixes all three.
Download the Workforce Plan Model (Excel) — demand, supply, gap, build-buy-borrow and cost in one sheet.
What Workforce Planning Means for an HRBP
For an HRBP, workforce planning is less about forecasting techniques and more about translation. The business head thinks in clients, projects, volumes and revenue. Finance thinks in budgets. Talent acquisition thinks in requisitions. The HRBP's job is to turn the business plan into a people plan that all three can work from, and to keep it updated as the business plan changes during the year.
That is why workforce planning sits among the core HRBP responsibilities, and why it depends on understanding the business's numbers. If the unit's revenue drivers are unfamiliar, start with business acumen for HR.
Workforce Planning vs Manpower Planning
In Indian companies the two terms are often used interchangeably. Where a distinction is made, it is one of scope:
| Manpower planning | Workforce planning | |
|---|---|---|
| Main question | How many people do we need, and when? | What mix of skills, roles and employment types do we need, and how do we get them? |
| Time horizon | Usually the next year | The next year plus a longer view of skills |
| Output | Headcount numbers and a hiring plan | Headcount, skills gaps, build-buy-borrow choices and a cost model |
In practice, a good manpower plan already does most of what workforce planning describes. The five steps below cover both.
The Five-Step Process
1. Business Demand: How Many People Will the Plan Need?
Start from the business plan, not from current headcount. For each role family, find the driver that determines how many people are needed: billable roles for a delivery team, sales targets and productivity per seller for a sales team, production volume and output per shift for a plant. Then add the buffer the business needs to operate. In an IT services unit, that buffer is the bench: if the unit plans to run at 85% utilisation, it needs about 118 people for every 100 billable roles. Demand is the number of people required, not the number of roles funded.
2. Supply and Attrition: Who Will Still Be Here?
Take today's headcount for each role family and subtract the people you expect to lose. Use each family's own attrition rate from the last twelve months, not the company average; the two can differ widely. The result is your projected supply at the end of the planning period. The attrition rate calculator works out the rates if you have opening headcount, closing headcount and exits.
3. Gap Analysis: How Many Do We Need to Find?
Gap = demand minus projected supply. Because supply already allows for attrition, the gap is the total number of people you must find in the year, covering both growth and replacement. Do this for each role family separately. A unit can have a surplus of one skill and a shortage of another, and an overall total hides both.
4. Build, Buy or Borrow: How Will We Fill It?
For each role family, decide how much of the gap to fill in three ways:
- Build: internal moves, promotions and upskilling. Cheaper and better for retention, but slower, and it creates a new gap one level down.
- Buy: external hiring. Faster for scarce skills, but it carries recruitment cost and onboarding time.
- Borrow: contract staff or fixed-term employees for peaks and short projects. Flexible, but not free: under the Labour Codes, fixed-term employees become eligible for gratuity after one year of service, which belongs in the cost of this option.
5. Cost Model: Can the Business Afford It?
Put a cost on the plan: the salary cost of the year-end headcount, recruitment cost for external hires, contract costs and training costs. Then compare the headcount and cost with the approved budget. If the plan exceeds the budget, which it often will on the first pass, that is a business conversation, not an HR problem to solve alone. The example below shows how to have it.
Worked Example: An Indian IT Delivery Unit
This is an illustrative example built in the Workforce Plan Model. A delivery unit has 440 people today. The business plan for next year requires 306 billable developers and 72 billable QA engineers, plus a fixed number of tech leads and project managers. The unit plans to run at 85% utilisation, and the approved headcount budget is 470.
| Role family | Demand | Current | Attrition | Expected exits | Projected supply | Gap (hires) |
|---|---|---|---|---|---|---|
| Developers | 360 | 300 | 18% | 54 | 246 | 114 |
| QA engineers | 85 | 80 | 15% | 12 | 68 | 17 |
| Tech leads | 48 | 40 | 10% | 4 | 36 | 12 |
| Project managers | 22 | 20 | 8% | 2 | 18 | 4 |
| Total | 515 | 440 | 72 | 368 | 147 |
Developer demand is 306 ÷ 0.85, rounded up to 360. The unit needs 147 people over the year: 20 through internal moves, 114 external hires and 13 contract or fixed-term staff. At an illustrative ₹40,000 per external hire, recruitment costs about ₹45.6 lakh, and the year-end salary bill at the assumed average CTCs comes to roughly ₹68.5 crore.
The problem is the last line: demand of 515 against a budget of 470 puts the plan 45 heads over budget.
Linking the Plan to Budget and Attrition
When a plan exceeds the budget, an HRBP's value lies in showing the levers and their effect, not in cutting numbers quietly. The model makes each lever visible:
| Scenario | Demand | Hires needed | Versus budget of 470 |
|---|---|---|---|
| Base plan | 515 | 147 | 45 over |
| Utilisation target raised from 85% to 88% | 500 | 132 | 30 over |
| Developer attrition reduced from 18% to 14% | 515 | 135 | 45 over |
| Both changes | 500 | 120 | 30 over |
Two things stand out. Raising utilisation reduces the headcount the unit needs, but runs the team harder and leaves less cover for new projects. Reducing attrition does not change the year-end headcount at all, but it cuts the hiring load by twelve people and the recruitment and onboarding effort that goes with them. Neither closes the budget gap on its own. The remaining 30 heads are a decision for the business head: increase the budget, defer some of the planned work, or accept a higher utilisation risk. The HRBP's job is to make that decision visible early, with numbers, rather than discover it in the third quarter.
Once the plan is agreed, track it monthly: actual headcount against plan by role family, hires against plan, and attrition against the assumption. The HRBP KPIs and scorecard covers the measures to report. If you want a structured way to build these skills, the HRBP certification online covers reading the business and the numbers behind people decisions.
Frequently Asked Questions
What is workforce planning in HR?
Workforce planning is estimating how many people, with which skills, a business will need over a coming period, comparing that with the people it is expected to have after attrition, and deciding how to close the gap through internal moves, external hiring or contract staff, at a cost that fits the budget.
What is the difference between workforce planning and manpower planning?
The terms are often used interchangeably in India. Where they are distinguished, manpower planning focuses on how many people are needed and when, while workforce planning also covers the mix of skills, roles and employment types, the build-buy-borrow choices and the cost of the plan.
What is the role of an HRBP in workforce planning?
The HRBP turns the business plan into a people plan: estimating demand from business drivers, projecting supply after attrition, agreeing how to fill the gap, costing the plan, and showing the business head the options when the plan and the budget do not match. The HRBP then tracks the plan monthly and updates it as the business plan changes.
By Vishvass Yadav, PGDM-HR (XLRI Jamshedpur), 17 years in Indian HR and payroll. Last reviewed 8 October 2026. The delivery unit example and all figures in it are illustrative.