The True Cost of Your Next Hire (It's More Than the Salary)

You are about to extend an offer: $100,000 per year base salary. In your head, that is $8,333 per month added to your burn rate. But the actual cost to your company is closer to $10,800 per month — and that is before you account for the one-time costs of recruiting, equipment, and onboarding. Here is how the real math works, and what it means for your runway.

What Is Included in Total Cost

The salary in an offer letter is the starting point, not the full picture. Here is what actually hits your bank account when you hire someone:

Base salary — The obvious one. $100,000 per year = $8,333 per month.

Benefits and insurance — For US-based companies, employer-paid benefits typically add 15–25% on top of base salary. This includes health insurance ($400–$800 per month per employee), dental and vision ($50–$100), employer-side payroll taxes (Social Security, Medicare, unemployment — roughly 7.65% of salary plus state taxes), and 401k match if offered (commonly 3–4% of salary). At 1.2x to 1.25x the base salary, the loaded cost of a $100K employee is $120K–$125K per year.

Equipment — A new laptop ($1,500–$3,000), monitor ($300–$600), peripherals, and any other hardware. This is a one-time cost of $2,000–$5,000 that hits your cash flow in month one.

Tool licenses — Every person on your team needs access to your SaaS stack. Slack, GitHub, Figma, Linear, your cloud provider seats, your analytics tools. Depending on your stack, this is $200–$500 per month per person. It adds up quietly.

Management overhead — The founder or manager spending time onboarding, reviewing work, and providing context has a real opportunity cost. This is hard to quantify but real — expect the manager to lose 10–20% of their productive time for the first 2 to 3 months of a new hire's tenure.

Recruiting costs — If you used a recruiting agency, that is 15–25% of first-year salary. For a $100K hire, that is $15,000–$25,000 as a one-time cost. Even without an agency, job board postings, screening time, and interview cycles have a cost.

The Monthly Burn Impact

Let us walk through a concrete example for a $100K per year engineer:

• Base salary: $8,333 per month
• Benefits and payroll taxes at 1.25x: $10,416 per month
• Tool licenses: $300 per month
• Total recurring monthly cost: $10,716 per month

That is $2,383 per month more than the salary alone — or $28,596 per year more than you budgeted if you only thought about the base. Over the first year, the total cost including one-time expenses (equipment at $3K, recruiting at $15K) is roughly $146,600 — almost 47% more than the $100K salary.

And this is for one hire. Multiply by two or three simultaneous hires and the gap between "what I budgeted" and "what I actually spend" becomes a serious planning problem.

The Runway Impact

Here is where it gets concrete. Say you have $500,000 in cash and a current monthly net burn rate of $50,000. Your runway is 10 months.

You make the hire above. Your new monthly burn is $60,716. Your new runway is 8.2 months. You just lost 1.8 months of runway with a single hire.

Now imagine you make two hires in the same month. Your new monthly burn is $71,432. Your runway drops to 7.0 months. You went from a comfortable 10 months to a concerning 7 months with two offers.

This is not an argument against hiring. It is an argument for modeling the full cost before you extend the offer, so the runway impact does not surprise you.

Timing Matters

Hiring in January versus April changes the math. If you make a hire in January, you carry the full cost for 12 months this year. If you hire in April, you carry it for 9 months. On a $10,716 per month loaded cost, that is a $32,148 difference in annual cash impact.

More importantly, staggering hires gives you time to validate each one. Hire the first engineer in January, confirm they are productive and the role is right, then hire the second in March. This preserves optionality — if the first hire does not work out, you have not committed the full cost of both. It also smooths the impact on your burn rate, making it easier to track and manage.

How to Model This

Before any hire, run two numbers: the total monthly cost (loaded salary plus tools) and the resulting runway. Compare current runway to post-hire runway. If the difference is uncomfortable, consider timing adjustments, part-time or contract arrangements, or whether the hire can wait until a revenue milestone is hit.

For a quick check, use the hiring cost calculator template. For ongoing tracking with staggered start dates and multiple scenarios, RunwayCal's Planner lets you add planned hires with start dates and see the impact on runway in real time. You can compare your current trajectory against a post-hire trajectory side by side.

This connects directly to headcount planning as a discipline. For a broader view on how hiring decisions interact with your financial position, see our guide on whether hiring reduces runway — and how to manage the tradeoff between team growth and cash preservation. Also visit hiring planning solutions for more frameworks.

Frequently Asked Questions

Does the 1.25x multiplier apply to contractors?

No. Contractors do not receive benefits, and you do not pay employer-side payroll taxes on contractor payments. The rate you pay a contractor is closer to the actual cost. However, contractor rates are typically 20–50% higher than equivalent salaried rates to compensate for the lack of benefits and job security.

Should I account for ramp-up time in the cost calculation?

Yes. A new hire is typically not fully productive for 2 to 4 months. During ramp-up, you are paying full cost but receiving partial output. This does not change the cash cost, but it affects the ROI timeline — the hire costs money immediately but delivers value on a delay.

How do remote hires change the cost calculation?

Remote hires eliminate office-related costs (desk space, in-office perks) but may add others (home office stipend, coworking allowance). Benefits costs vary by location — international hires may require employer-of-record services that add 15–25% on top of salary. Always model the actual costs for the specific geography.