Why Talent Acquisition Cost (TAC) needs to be on your radar

Just as marketing has CAC (Customer Acquisition Cost), HR needs to take a close look at CAT, which shows how much it actually costs to bring new talent into the organization.

Gabriel Appel

October 1, 2025

When we talk about recruitment efficiency, it is common to think about tools, automation, or the time it takes to hire. But there is one indicator that few companies are aware of—and that can reveal how much money is being wasted at the top of the funnel: the Cost of Talent Acquisition (CAT).

Just as marketing has CAC (Customer Acquisition Cost), HR needs to take a close look at CAT, which shows how much it actually costs to bring new talent into the organization.

And spoiler alert: this cost goes far beyond the salary or the job posting.

What is Talent Acquisition Cost (TAC)?

CAT represents the sum of all expenses— direct and indirect —involved in the process of attracting, evaluating, and hiring a professional.

The formula is simple but powerful:

CAT = (Internal Costs + External Costs) ÷ Number of Hires

This metric is the basis for Cost Per Hire (CPH), used by large companies to measure the efficiency of their recruitment processes. The problem is that, in practice, most companies are unclear about what goes into this calculation.

Direct costs: what is easy to see

These are the most obvious expenses and are usually recorded in budgets:

  • Job advertisements and paid media;
  • Recruitment consulting fees;
  • Recruitment tools and software (ATS, tests, assessments);
  • Background checks;
  • Onboarding and integration fees.

These values are visible and measurable, but they represent only the tip of the iceberg.

Indirect costs: what eats away at the budget without being noticed

The real villain of CAT is time. Every hour a recruiter spends screening resumes, every unproductive interview, every alignment meeting about an unsuitable candidate— all of this comes at a cost.

What's more, the time managers and leaders spend on unsuccessful interviews and the impact of longer-open positions (which affect productivity and revenue) are also part of the true cost of acquisition.

Let's look at a practical example:

A company that receives 100 applications per vacancy and spends 4 minutes per CV + 15 minutes on pre-interviews with 30% of candidates invests 14 hours per vacancy just on initial screening.
If the recruiter's hourly rate is R$ 80, this equates to R$ 1,120 per vacancy — not counting tools or the manager's time.

Now imagine 10 vacancies per month.

That's 141 hours and R$ 11,000 just for manual screening — even before the first interview with the manager.

This is the invisible cost that most leaders overlook.

How to reduce CAT: from guesswork to data

Reducing CAT isn't about cutting tools —it's about cutting waste. The way forward is to automate what doesn't require human judgment and free people up to do what matters most: making decisions based on data.

This is where Sol, Solu's AI agent, comes in.

She interviews 100% of candidates, assesses reasoning, behavior, and skills, and delivers explainable shortlists, combining:

  • Curriculum data,
  • Answers from the conversational interview,
  • Neurochemical analysis (via Solu Balance).

As a result, companies reduce the time spent on screening by up to 90% and eliminate a large portion of interviews without a signal— drastically lowering the CAT.

Why CAT is a strategic metric (and not an HR metric)

Just as CAC is a metric for growth and efficiency, CAT is a metric for sustainability and competitiveness. Companies that excel at CAT:

  • They make faster hiring decisions;
  • They allocate the recruitment team's time more efficiently;
  • Reduce cost per vacancy and early turnover;
  • Generate real ROI in recruitment technology.

In a scenario where hiring the right people is as important as selling well, CAT needs to move from the HR spreadsheet to the CFO's desk.

CAT reveals how much your company invests (or wastes) to attract talent. Ignoring it is like investing in marketing without looking at CAC.

The good news? Technology already allows you to interview the entire funnel, generate data, and eliminate waste, with AI, neuroscience, and explainability.

The future of recruitment is smart, automated, and human at the same time. And whoever masters CAT will lead this transformation.

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