Overtime vs. Hiring Break-Even Calculator

Overtime vs. Hiring Break-Even: How to Calculate When to Hire

Compare overtime cost to the true cost of a new hire using a fully burdened labor rate and staffing break-even analysis. Learn the math, why the fully burdened rate matters, and how to factor in the cost of employee burnout.

What This Calculator Does

This overtime vs. hiring break-even calculator compares the cumulative cost of paying overtime against the cost of bringing on a new employee, then pinpoints the break-even month where hiring becomes the cheaper option. Enter your team's overtime rate, hours, and multiplier on one side and the prospective new hire's salary, payroll burden, and one-time onboarding cost on the other. The tool models both tracks month over month and charts them so you can see exactly when the new-hire line crosses below the overtime line. An optional fatigue factor accounts for the productivity decay that research shows at sustained high overtime, output per hour drops, making each overtime hour more expensive in effective terms. Use the results to make a data-driven staffing decision: if your overtime need stretches past the break-even point, hiring saves money.

Outputs:

Break-even month, monthly cost comparison, cumulative cost chart, and hidden-cost estimate from fatigue.
Toggle:

Enable or disable the fatigue factor to see how productivity decay shifts the break-even point.

How to Use This Calculator

Start with the overtime side: enter the base hourly rate of employees working overtime, the OT multiplier (typically 1.5 for time-and-a-half), and total weekly overtime hours across all affected staff. Next, fill in the new-hire side: target annual salary, employer payroll burden percentage (25–30% is a common benchmark covering FICA, benefits, and overhead), and the one-time onboarding cost for recruiting, training, and equipment. Optionally enable the fatigue factor toggle to model productivity decay at high overtime, the calculator applies a tiered efficiency leak (10% for moderate OT, 25% for heavy OT) based on published research. The results show the break-even month, a month-by-month cost comparison, and a cumulative cost chart. If your overtime need extends past the break-even month, hiring is the less expensive path; if it is short-term, overtime may be cheaper.

The Methodology: How we calculate your break-even point

Total hourly cost of overtime

The effective cost per hour of overtime, including a productivity decay factor when sustained OT is high:

C_{\text{ot}} = R_{\text{base}} \times M_{\text{ot}} \times E_{\text{fatigue}}

where:

R_base (Base rate):

The employee’s base hourly rate before overtime.
M_ot (OT multiplier):

The overtime multiplier (e.g. 1.5 for time-and-a-half).
E_fatigue (Fatigue factor):

A factor ≤ 1 that models productivity decay at high overtime (e.g. 0.9 for 10% decay, 0.75 for 25% decay). When off, use 1.

When the fatigue factor is off, E_fatigue = 1. When it’s on, we use a tiered factor (e.g. 0.9 or 0.75) so that the “cost” reflects both pay and the hidden loss of effective output.

Fully burdened new-hire rate

The hourly cost of a new hire including salary and burden (taxes, benefits, overhead):

C_{\text{hire}} = \frac{S_{\text{annual}}}{2080} \times (1 + B)

where:

S_annual (Salary):

The target annual salary for the new hire.
B (Burden):

Employer burden as a decimal (e.g. 0.25 for 25%): payroll taxes, benefits, and overhead on top of base pay.

2080 is the standard number of paid hours per full-time year (40 × 52).

Break-even point (months)

The number of months until cumulative new-hire cost (onboarding + monthly burdened cost) equals cumulative overtime cost:

M_{\text{be}} = \frac{O_{\text{cost}}}{(C_{\text{ot}} \times H_{\text{week}} \times 4.33) - (C_{\text{hire}} \times 40 \times 4.33)}

where:

O_cost (Onboarding cost):

One-time cost to recruit, train, and ramp the new hire to productivity.
H_week:

Total overtime hours per week across all employees on OT (e.g. 5 people × 12 hrs each = 60).
40:

Full-time equivalent hours per week per new hire used to convert C_hire to a monthly cost.

4.33 is the approximate number of weeks per month (52/12). The denominator is the monthly difference: OT cost per month minus new-hire cost per month. If that difference is zero or negative, hiring is cheaper from month one (or break-even is undefined).

Why managers get this wrong

The invisible leak: productivity decay

Sixty hours of work does not equal sixty hours of output. When people work sustained overtime, output per hour drops, mistakes increase, collaboration and creativity suffer. Research on overtime in demanding roles shows clear diminishing returns. The calculator’s fatigue factor turns that into a dollar “efficiency leak” so you see the real cost of paying for hours that don’t deliver full value. Ignoring that leak makes overtime look cheaper than it is.

The fully burdened rate: why a $30/hr employee costs more

A $30/hr employee does not cost the company $30/hr. Add employer payroll taxes (FICA, unemployment, etc.), benefits (health, retirement, PTO), and a share of overhead (recruiting, equipment, space). A 25% burden puts the real cost at $37.50/hr; 30% puts it at $39. Comparing overtime at 1.5× ($45/hr) to “$30” understates the gap, you must compare to the burdened new-hire rate (e.g. $36–39/hr) to get an honest staffing break-even analysis.

Research & Methodology

Why we include a Fatigue Factor

Because human beings aren’t machines. Industrial research shows that when you ask a team to work 60 hours a week, you aren’t getting 60 hours of "prime" work. You’re getting 40 hours of great work and 20 hours of expensive, fatigued work that is prone to mistakes. The calculator’s Fatigue Factor quantifies that leak so you can compare the true cost of overtime to the cost of hiring.

The productivity decay function (effective hours)

We model effective output as a share of total hours paid, using a leakage factor L:

H_{\text{effective}} = H_{\text{total}} \times (1 - L)

where:

H_total:

Total paid hours (including overtime).
L (Leakage factor):

The fraction of those hours that do not translate into full output, 0.10 for OT > 10 hrs/week, 0.25 for OT > 20 hrs/week, matching research on diminishing returns beyond ~50 hours/week.

L is the leakage factor: 0.10 for moderate overtime (e.g. OT > 10 hrs/week), 0.25 for high overtime (e.g. OT > 20 hrs/week). So 60 hours at L = 0.25 yields 45 effective hours.

The real cost of a fatigued hour

The cost per effective hour of output when you pay an OT rate but get less than full output:

\text{Cost}_{\text{effective}} = \frac{\text{Rate}_{\text{OT}}}{1 - L}

So a $45/hr OT rate with a 25% leak (L = 0.25) means each effective hour of output costs the business $45 ÷ 0.75 = $60. You pay for 60 hours but receive the equivalent of 45; the hidden cost is that premium per effective hour.

Example: $45/hr OT with L = 0.25 → cost per effective hour = $60.

Overtime vs. Hiring Break-Even FAQ

What is a 'Fully Burdened' labor rate?

A fully burdened rate includes not only base salary or hourly pay but also employer-side costs: payroll taxes (e.g. FICA, unemployment), benefits (health, retirement, PTO), and overhead (recruiting, equipment, space). A $30/hr employee can easily cost the company 25–40% more once burden is applied, so the burdened rate is what you use when comparing overtime cost to the true cost of a new hire.

How do you calculate the cost of employee burnout?

We model it as productivity decay: at high overtime (e.g. 50+ hours), output per hour drops. Research on sustained overtime shows diminishing returns, more hours paid does not mean proportionally more output. The calculator applies a fatigue factor (e.g. 10% for 10–20 OT hrs/week, 25% above 20) to estimate the 'invisible leak': you pay for 60 hours but get something less than 60 hours of effective work. That gap is the cost of burnout risk we quantify.

Does this calculator account for recruitment fees?

Yes, via the Onboarding Cost field. Enter your one-time cost to bring a new hire to productivity: recruiting fees, background checks, training, equipment, and lost productivity during ramp-up. That amount is included in the new-hire track so the break-even point reflects when you've recouped that investment. If you don't use recruitment agencies, use an estimate of internal time and training cost.

Is it always better to hire than to pay overtime?

No. It depends on how long you need the capacity. If the need is short-term (a few months), overtime can be cheaper because you avoid onboarding cost and commitment. The calculator shows the break-even month: before that, OT is cheaper; after that, the new hire is cheaper on a cumulative basis. Use that plus your forecast for demand to decide whether to hire now or manage with OT.

What is the standard employer payroll burden?

A common benchmark in the US and Canada is 25–30% on top of base salary. That covers employer payroll taxes, benefits, and often a slice of overhead. The calculator defaults to 25%; adjust the Payroll burden % field to match your industry and benefits level. Public-sector and highly benefited roles often sit at 30% or higher.

How accurate is the 'Fatigue Factor' model?

It's a simplified proxy. Studies on sustained overtime (e.g. construction, healthcare, tech) show that output per hour declines beyond roughly 45–50 hours, errors rise, creativity and collaboration drop. We use a tiered factor (e.g. 10% decay for 10–20 OT hrs/week, 25% above 20) to approximate that effect. Your real numbers may vary by role and culture; use the toggle to compare scenarios with and without fatigue to see how it shifts break-even and hidden cost.

Overtime vs. Hiring Break-Even Calculator

Overtime track

New hire track

Key numbers

Consultant's insights

Efficiency leak

Cumulative cost (12 months)

Effective hourly rate

How the Overtime vs. Hiring Break-Even Works

Key Concepts

Break-Even Month

Fully Burdened Rate

Productivity Decay (Fatigue)

Onboarding Cost

Overtime vs. Hiring Break-Even: How to Calculate When to Hire

What This Calculator Does

How to Use This Calculator

The Methodology: How we calculate your break-even point

Total hourly cost of overtime

Fully burdened new-hire rate

Break-even point (months)

Why managers get this wrong

The invisible leak: productivity decay

The fully burdened rate: why a $30/hr employee costs more

Research & Methodology

Why we include a Fatigue Factor

The productivity decay function (effective hours)

The real cost of a fatigued hour

Overtime vs. Hiring Break-Even FAQ

What is a 'Fully Burdened' labor rate?

How do you calculate the cost of employee burnout?

Does this calculator account for recruitment fees?

Is it always better to hire than to pay overtime?

What is the standard employer payroll burden?

How accurate is the 'Fatigue Factor' model?

Sources & citations

Financial Estimation Note