Headcount Planning Calculator

What is Headcount Planning / Salary Budgeting? Headcount planning is an FP&A process that forecasts how many employees you’ll carry over a period—and what that workforce will co...

Headcount Planning & Salary Budget Calculator

Plan your workforce growth and calculate total compensation costs including salaries, benefits, bonuses, and recruitment expenses.

Time horizon for your workforce planning

Total number of employees currently on your team

%

Expected percentage increase in headcount over the planning period

Desired number of employees at the end of the planning period

%

Percentage of employees expected to leave annually

$

Average annual base salary per employee

%

Cost of benefits, payroll taxes, and insurance as a percentage of base salary (typically 20-40%)

%

Annual bonuses and variable compensation as a percentage of base salary

Factor in cost-of-living and merit increases

%

Average annual salary increase per employee

$

Average cost to recruit and onboard one new employee (agencies, job boards, training)

Scenarios
Example Scenarios
Conservative GrowthAggressive ExpansionSteady State (Replacement Only)Startup Scaling

Results

  • Ending Headcount—
  • New Hires Needed—
  • Expected Attrition—
  • Total Base Salaries$
  • Benefits & Taxes$
  • Bonuses & Variable Comp$
  • Recruitment Costs$
  • Total Compensation Budget$
  • Average Cost per Employee$
  • Budget Category—

Enter your inputs above to calculate the results.

What is Headcount Planning / Salary Budgeting?

Headcount planning is an FP&A process that forecasts how many employees you’ll carry over a period—and what that workforce will cost in fully-loaded terms.

It matters because labor is typically the largest controllable operating expense, and small changes in growth, attrition, or comp assumptions can materially move EBITDA, cash burn, and value creation.

Formula

HCend = HC0times(1 + g)
Attrition = HC0 × atimesfracM12
Hiresneeded = (HCend-HC0) + Attrition
HCavg = (HC0 + HCend) / 2
RaiseFactor = 1 + rtimesfracM24
BaseSalaryBudget = HCavg × Salaryavg × M / 12 × RaiseFactor
BenefitsTaxes = BaseSalaryBudgettimes b
BonusVariable = BaseSalaryBudgettimes v
RecruitingCost = Hiresneeded × CostPerHire
TotalCompBudget = BaseSalaryBudget + BenefitsTaxes + BonusVariable + RecruitingCost
AvgCostPerEmployee = TotalCompBudget / HCavg

Example

Assume 12 months (M=12), current headcount HC₀=50, growth rate g=20%, annual attrition a=10%, average salary=$75,000, benefits & taxes b=25%, bonus/variable v=10%, annual raise r=3%, cost per hire=$5,000.

HCend = 50times(1 + 0.20) = 60
Attrition = 50 × 0.10 × 12 / 12 = 5
Hiresneeded = (60-50) + 5 = 15
HCavg = (50 + 60) / 2 = 55
RaiseFactor = 1 + 0.03 × 12 / 24 = 1.015
BaseSalaryBudget = 55 × 75000 × 1 × 1.015 = 4,186,875
BenefitsTaxes = 4,186,875 × 0.25 = 1,046,719
BonusVariable = 4,186,875 × 0.10 = 418,687
RecruitingCost = 15 × 5,000 = 75,000
TotalCompBudget = 4,186,875 + 1,046,719 + 418,687 + 75,000 = 5,727,281
AvgCostPerEmployee = 5,727,281 / 55 = 104,132

Frequently Asked Questions

How many new hires do I need if I’m growing headcount but also expecting attrition?

The calculator adds “net growth hires” plus “backfill hires” so you don’t under-hire. Set your growth (or target headcount) and attrition rate, then read New Hires Needed.

What’s the difference between “Growth Rate (%)” and “Target Headcount”?

Growth Rate (%) projects an ending headcount from your current headcount. Target Headcount forces a specific ending number. Use target mode when leadership gives you a hard headcount goal.

Why does the salary budget look like it’s based on an “average headcount,” not the ending headcount?

Because hires usually ramp in over time. The calculator uses a simple average headcount approach to avoid overstating full-year salary cost for employees who aren’t there all year.

What should I put in “Benefits & Taxes Rate” and “Recruitment Cost per Hire”?

Benefits & Taxes Rate should reflect employer-paid burden (payroll taxes, health, retirement, insurance, statutory costs). Recruitment Cost per Hire should reflect your average cost to fill one role (agency fees, job ads, recruiting tools, background checks, etc.).

Sources & Methodology