Workforce planning compares the people and skills you have with those you will need, then closes the gap by hiring, developing, borrowing or automating. Here is the process, a worked example and the metrics to track.
- Workforce planning has three parts: supply (who you have), demand (who you will need) and the gap between them.
- Plan by job family and skill, not just total headcount, and always include expected attrition in your supply forecast.
- Close each gap with one of four levers (buy, build, borrow or automate), each with an owner, a date and a budget.
- Operational plans cover the next 3-12 months; strategic plans look several years ahead. Most companies need both.
- HR’s job is to run the process and bring the data, but Finance and line leaders must co-own the plan for it to get funded.
In this article
Workforce planning is the process of comparing the people and skills you have today with the people and skills your business will need, then deciding how to close the gap: hire, develop, borrow contract talent or automate. Done well, it turns business strategy into a dated, budgeted hiring and development plan, so you stop filling roles in a rush after people leave.
What workforce planning means
Every workforce plan answers three questions:
- Supply: Who do we have now, with what skills, and how will that change as people leave, retire or move roles?
- Demand: What work will the business need done over the plan period, and what roles and skills does that require?
- Gap: Where will supply fall short of demand (or exceed it), and what will we do about it?
The U.S. Office of Personnel Management’s workforce planning model, written for federal agencies but widely used elsewhere, breaks this into five steps: set strategic direction; analyze the workforce and identify skill gaps; develop an action plan; implement it; and monitor, evaluate and revise.
Types of workforce planning
| Operational workforce planning | Strategic workforce planning | |
|---|---|---|
| Time horizon | 3-12 months | Several years. Bain, for example, uses a six-year horizon with a three-year midpoint |
| Main question | Do we have enough people for next quarter’s work? | What capabilities will our strategy require, and where will they come from? |
| Unit of planning | Headcount, shifts, open requisitions | Job families and skills |
| Typical owner | HR business partners with line managers | HR leadership with the executive team and Finance |
| Example | Adding seasonal warehouse staff for the fourth quarter | Building a data team as the product roadmap shifts |
Start with operational planning if you have never done either. It uses data you already have and builds the habits (and trust with Finance) that a longer-range plan needs.
The workforce planning process in 6 steps
- Link to business goals. List the one to three business objectives for the plan period (growth, a new location, a product launch, cost cuts) and write down what each means for people. “Open a second distribution center in 2027” means supervisors, forklift operators and maintenance technicians, with dates.
- Analyze supply. Pull headcount by job family, location and level from your HRIS. Add a skills inventory for critical roles, trailing 12-month attrition, retirement eligibility and the internal promotion pipeline.
- Forecast demand. Work with line leaders and Finance to estimate the roles needed under a base case and one or two alternative scenarios (for example, 10% slower growth or a delayed launch).
- Find the gaps. Subtract projected supply from projected demand for each job family. Rank gaps by business impact and by how long they take to fill, not just by size.
- Choose levers and build the action plan. For each gap, pick buy, build, borrow or automate. Give every action an owner, a deadline and a budget line.
- Monitor and revise. Review quarterly against the plan. Re-plan when a major assumption changes, such as a lost contract or a new acquisition.
A worked example: forecasting a hiring gap
Suppose you employ 40 field service technicians, plan to grow to 48 by the end of next year, and your trailing 12-month turnover for the role is 15%.
| Line | Calculation | Result |
|---|---|---|
| Current headcount (supply today) | 40 | |
| Expected departures over 12 months | 40 × 15% | 6 |
| Projected supply with no action | 40 − 6 | 34 |
| Projected demand | Business plan | 48 |
| Gap to close | 48 − 34 | 14 |
Notice that growth accounts for only 8 of the 14 roles. The other 6 come from turnover, which is why plans that only budget for growth fall short. Turnover here is separations ÷ average headcount over the last 12 months.
Now split the 14 across levers. For example: promote and train 3 apprentices (build), hire 8 experienced technicians (buy) and use 3 contract technicians for the peak season while the new hires ramp up (borrow). Then put each in the calendar. If experienced technicians take around three months to hire and train in your market, the requisitions must open a quarter before the need. Our guide to the cost of vacancy helps you show leaders what late hiring costs.
The four levers: buy, build, borrow, automate
| Lever | What it means | Use it when | Trade-off |
|---|---|---|---|
| Buy | Hire externally (direct hire) | You need proven skills quickly, or the skill doesn’t exist inside | Recruiting cost and ramp-up time |
| Build | Train, promote or move current employees | You have time and people with adjacent skills | Slower; needs training budget and manager time |
| Borrow | Contract, temporary or project-based talent | The need is short-term, uncertain or seasonal | Higher hourly cost; knowledge may leave with the contractor |
| Automate | Use technology to remove or reduce the work | The tasks are repetitive and well defined | Up-front investment; affected roles need a transition plan |
Bain’s model uses the same four levers (calling the last one “bot”) and assigns each action an owner, a timeline and progress tracking. For the build lever, see our guide to talent mobility. For borrow, see flexible staffing models.
Labor market data to build into your plan
Your demand forecast should reflect the outside market, because a gap in a fast-growing occupation will be harder and costlier to fill.
The Bureau of Labor Statistics projects total U.S. employment will grow 3.5% from 2025 to 2035, adding 5.9 million jobs. Healthcare and social assistance is expected to add over 2.2 million of them, about 37% of all new jobs. Among detailed occupations, nurse practitioners (41.0%) and data scientists (34.6%) are among the fastest growing. If your plan depends on roles like these, start pipelines early.
Short-term conditions matter too. In BLS’s latest Job Openings and Labor Turnover Survey, for August 2026, there were 7.1 million job openings and a quits rate of 1.9%. Compare your own turnover with your industry’s in JOLTS to judge whether your attrition assumption is realistic.
HR’s strategic role in workforce planning
Workforce planning is where HR moves from processing requests to shaping decisions. In practice, HR’s role is to:
- Run the process: set the calendar, templates and review meetings, and keep the plan current.
- Bring the data: headcount, attrition, time to fill, internal mobility and market data that leaders don’t have.
- Translate strategy into roles: ask leaders what a goal means for people, and turn the answer into job families, skills and numbers.
- Challenge assumptions: point out when a launch date assumes hires that can’t be made in time.
- Own the build lever: succession plans, training and internal moves.
HR can’t do this alone. Line leaders know what work is coming, and Finance controls the budget. The plans that get funded are the ones Finance helped build. A quarterly review with HR, Finance and business leaders turns the plan into decisions. Our guide to getting recruiting budgets approved covers the Finance conversation.
Workforce planning metrics and common pitfalls
Track a short set of measures at each quarterly review:
| Metric | Formula |
|---|---|
| Turnover rate | Separations in the period ÷ average headcount |
| Plan-to-actual headcount | Actual headcount ÷ planned headcount, by job family |
| Time to fill (critical roles) | Days from requisition approval to accepted offer |
| Internal fill rate | Roles filled internally ÷ all roles filled |
| Succession coverage | Critical roles with at least one ready successor ÷ all critical roles |
More definitions are in our recruitment metrics list. The most common reasons plans fail:
- Planning total headcount instead of specific job families and skills.
- Forgetting attrition, so the plan only covers growth.
- One forecast and no scenarios, so the plan breaks at the first surprise.
- No owner or budget for each action.
- An annual document that nobody reviews until next year.
- Building a detailed model before leaders agree on the business goals.
How to start in the next 90 days
- Days 1-30: Pick the three to five job families that matter most to next year’s goals. Pull headcount, 12-month turnover and open requisitions for each.
- Days 31-60: Meet each relevant leader and Finance to agree on demand for those job families under a base case and one alternative.
- Days 61-90: Calculate the gaps, assign levers, owners and dates, and schedule the first quarterly review.
How Careerscape can help
Careerscape is a U.S. staffing and recruiting firm. When your plan calls for the buy or borrow levers, we can fill roles through direct hire or contract staffing, and our free Salary Guide covers pay for 450+ roles to help you budget.
Frequently asked questions
What are the main steps of workforce planning?
Most models follow the same sequence: link the plan to business goals, analyze your current workforce (supply), forecast future needs (demand), identify the gaps, choose actions to close them, and monitor and revise. OPM’s model groups these into five steps: set strategic direction, analyze the workforce, develop an action plan, implement it, and monitor, evaluate and revise.
What is the difference between workforce planning and strategic workforce planning?
“Workforce planning” often refers to short-term, operational planning: making sure you have enough people for the next 3-12 months. Strategic workforce planning looks several years ahead and focuses on the capabilities and job families your strategy will need. Bain’s model, for example, plans six years out with a three-year midpoint.
Who is responsible for workforce planning?
HR usually runs the process and supplies the data, but it should be co-owned. Line leaders forecast the work, Finance ties the plan to the budget, and the executive team sets the business goals. Plans that HR builds alone tend not to get funded or used.
What are the 4 Bs of workforce planning?
In Bain’s version, the four levers are buy (hire externally), build (develop current employees), borrow (use contract or temporary talent) and bot (automate the work). Other frameworks swap in different fourth terms, but the idea is the same: assign every gap in your plan to one lever or a mix, with an owner and a date.
How often should a workforce plan be updated?
Review progress at least quarterly and refresh the full plan once a year, or sooner when a major assumption changes, such as an acquisition, a lost customer or a new product timeline. A plan that is only looked at once a year will be out of date within months.
- U.S. Office of Personnel Management: OPM’s Workforce Planning Model
- Bain & Company: What is strategic workforce planning? (March 2026)
- U.S. Bureau of Labor Statistics: Employment Projections 2025-2035 (August 27, 2026)
- U.S. Bureau of Labor Statistics: Job Openings and Labor Turnover Summary, August 2026 (September 29, 2026)