A professional delivers strong work. They prove themselves again. They gain qualifications. They prepare extensively. They avoid mistakes. They take on additional responsibility. Yet they continue feeling that credibility is provisional.
This experience sits at the centre of what the Cost of Black Excellence Research Project describes as the Performance Tax. The Performance Tax is the additional burden created when competence is not assumed and has to be demonstrated repeatedly.
Across the current dataset of 1,153 participants, 86.3% said they always or often felt they needed to work harder than others to be seen as competent.
“Having to constantly show that I am credible at what I do, whereas my white colleagues are taken at face value.”
Participant, Cost of Black Excellence Research Project
“The constant pressure to prove we belong.”
Participant, Cost of Black Excellence Research Project
“I cannot simply exist or be at work. There is a constant element of performance or conformity needed to get through each day.”
Participant, Cost of Black Excellence Research Project
These are not descriptions of low ambition. They describe the additional effort required to maintain professional credibility.
Proving pressure changes how people work.
Continual proving often produces behaviours organisations interpret positively. Employees over-prepare. They check work repeatedly. They volunteer. They take ownership. They avoid visible mistakes. They stay late. They accept additional work. They hold themselves to unusually high standards.
This might look like exceptional commitment. The employee may experience it as protection.
“The extra effort that we make, checking, double checking, triple checking to prove capability and to be seen.”
Participant, Cost of Black Excellence Research Project
“Putting 100% into everything I do, not feeling like I have the option to be average, OK or mediocre.”
Participant, Cost of Black Excellence Research Project
The distinction between healthy ambition and defensive overperformance matters. One develops capability. The other consumes resources.
The health pattern deserves attention.
The relationship between proving pressure and health is one of the strongest patterns in the dataset.
Among participants who reported always or often needing to work harder to be seen as competent, 69.8% said their health had been significantly or severely affected. Among participants reporting lower levels of proving pressure, the figure was 28.5%.
Similarly, 95.7% of those in the high-proving group reported at least one physical or emotional symptom, compared with 75.9% among the lower-proving group.
The survey design does not establish that proving pressure caused these health outcomes. The difference is still large enough to require organisational attention.
“It is exhausting always trying to do your job well when you know that you need to work twice as hard.”
Participant, Cost of Black Excellence Research Project
“The mental stress and exhaustion means you constantly question every email you send, every decision you make and the tone you use.”
Participant, Cost of Black Excellence Research Project
Performance therefore needs a broader definition. Organisations should not only ask whether targets are being achieved. Leaders also need to ask what employees are doing to themselves to keep achieving them.
Proving becomes especially costly when recognition does not follow.
Additional effort may feel worthwhile when employees believe it produces fair recognition and credible opportunity. The dynamic changes when effort continues but progression does not.
“It is a tax that has taken its toll on me emotionally, spiritually, physically, mentally and financially, having to be excellent all the time without getting the recognition or promotion.”
Participant, Cost of Black Excellence Research Project
“We are constantly working harder to be seen and recognised, while colleagues who do not work as hard get the sponsorship and promotion.”
Participant, Cost of Black Excellence Research Project
This creates a particular form of organisational risk. The employee learns that exceptional effort does not necessarily produce exceptional opportunity. Over time, reducing discretionary effort or looking elsewhere becomes a rational response.
High performers eventually adjust.
Employees are not infinitely elastic. They learn from repeated organisational experiences.
If working harder produces more work rather than more opportunity, they notice. If being dependable produces dependency rather than development, they notice. If qualifications and results do not change how competence is perceived, they notice.
“I did everything right and worked twice as hard. After 40 years, I looked around and noticed I had not had a promotion in a decade. I stopped working so hard.”
Participant, Cost of Black Excellence Research Project
Organisations may describe the final sentence as disengagement. From the employee's perspective, it may represent learning. Their behaviour has changed in response to what the organisation has repeatedly shown them.
Leaders need to identify where effort is compensating for the system.
The answer is not to lower expectations. Strong organisations need high standards. The leadership question is whether those standards are applied equitably and whether high performance remains sustainable.
Organisations should examine whether the same people continually rescue difficult work, whether high performers receive opportunity in proportion to responsibility, whether some groups need more evidence of competence before gaining trust, and whether mistakes have equal consequences across groups.
They should also compare who receives stretch assignments with who receives sponsorship, and who receives credit when work succeeds.
The Performance Tax turns an individual experience into an organisational question:
How much additional effort is the organisation requiring from some employees before it recognises competence that others are granted more readily?
Once leaders ask this question, high performance looks different.
About the research
The Cost of Black Excellence Research Project is led by Natasha Williams. This article draws on the current dataset of 1,153 participants. All participants consented to take part through the research form or separately by email. Survey findings are descriptive and should not be interpreted as evidence of causality. Participant quotations have been anonymised and, where needed, lightly edited for punctuation or length without changing their meaning.
Read the COBE Intelligence Data & Methodology page for more information about the research and how evidence is interpreted.