Can your personality traits and income really be connected? According to a large-scale study conducted by a Canadian research team, the answer is a clear yes — and the differences can be surprisingly large. Research suggests that people who score high in conscientiousness and extraversion tend to earn significantly more than their peers, while those high in agreeableness may actually see lower salaries. Understanding which personality traits correlate with higher earnings could be one of the most underrated career strategies available to you.
The good news is that while personality is not something you can overhaul overnight, it is far from fixed. You can learn to amplify your strengths and manage the traits that may be holding your income back. This article breaks down the science behind personality and career success, explains exactly which Big Five traits matter most for your wallet, and gives you practical, evidence-based steps to move forward — regardless of where you currently stand.
Once again, personality researcher and author of Villain Encyclopedia, Tokiwa (@etokiwa999), will provide the explanation.
※We have developed the HEXACO-JP Personality Assessment! It has more scientific basis than MBTI. Tap below for details.

目次
- 1 What the Research Says: Personality Traits and Income
- 2 The High-Earning Personality Traits: What Boosts Your Income
- 3 The Lower-Earning Personality Traits: What May Be Costing You
- 4 Gender Differences in Personality Traits and Income
- 5 Actionable Advice: Leveraging Your Personality Traits for Career Success
- 6 Frequently Asked Questions
- 6.1 Are personality traits and income really connected, or is this just correlation?
- 6.2 Can I change my Big Five personality traits to earn more money?
- 6.3 Why does high agreeableness tend to lower income more for women than for men?
- 6.4 Does being an introvert mean I will always earn less than extraverts?
- 6.5 How does conscientiousness specifically lead to higher earnings?
- 6.6 Does neuroticism always hurt income, or are there cases where it helps?
- 6.7 What is the best personality type for earning a high income?
- 7 Summary: Using Personality Self-Awareness as a Career Tool
What the Research Says: Personality Traits and Income
The Large-Scale Study Behind the Findings
A major Canadian study analyzing data from 3,571 adults — statistically weighted to represent approximately 13.86 million people — found that non-cognitive skills (i.e., personality traits) have a measurable and meaningful impact on earnings.
The research, titled “Non-Cognitive Skills: How Much Do They Matter for Earnings in Canada?”, examined three key categories of information for each participant: annual income along with educational background and work history; the Big Five personality traits (openness, conscientiousness, extraversion, agreeableness, and neuroticism); and cognitive abilities, specifically reading comprehension and numerical reasoning.
By combining all three categories and applying statistical controls, the researchers were able to isolate the specific contribution of each personality trait to a person’s income — independent of their education level or cognitive ability. This is what makes the findings particularly compelling: even after accounting for how smart or well-educated someone is, their personality still exerts a distinct influence on how much they earn.
The study is widely regarded as an important contribution to the growing body of evidence showing that non-cognitive skills — the personality-based qualities that are often overlooked in hiring and career development — play a real economic role in people’s lives.
Cognitive Skills vs. Non-Cognitive Skills: What’s the Difference?
To understand why personality traits affect income, it helps to first distinguish between cognitive skills and non-cognitive skills — two fundamentally different categories of human ability.
Cognitive skills refer to intellectual capabilities — the kind that are typically measured by IQ tests or academic exams. Examples include:
- Reading comprehension — the ability to understand and interpret written information
- Numerical reasoning — the ability to perform calculations and think logically with numbers
Non-cognitive skills, on the other hand, refer to personality-based traits and behavioral tendencies. These are not about raw intellectual horsepower — they describe how a person typically approaches tasks, interacts with others, and manages themselves under pressure. Examples include conscientiousness, extraversion, and emotional stability.
For decades, economists and psychologists focused almost exclusively on cognitive skills as predictors of economic success. However, research increasingly suggests that non-cognitive skills — personality traits and income being a key relationship — account for a surprisingly large portion of the variation in people’s earnings. In fact, the Canadian study found that non-cognitive skills contributed to income differences even after cognitive ability was fully accounted for, suggesting that who you are matters as much as how smart you are when it comes to financial outcomes.
The Big Five Personality Model Explained
The Big Five personality model — sometimes called the OCEAN model — is the most widely accepted scientific framework for measuring personality, and it forms the foundation of the income research discussed in this article.
The Big Five model organizes human personality into 5 broad dimensions, each representing a spectrum from low to high:
- Openness to Experience — curiosity, creativity, and a love of new ideas
- Conscientiousness — diligence, reliability, self-discipline, and goal-orientation
- Extraversion — sociability, assertiveness, energy, and enthusiasm
- Agreeableness — warmth, cooperativeness, empathy, and conflict avoidance
- Neuroticism — emotional sensitivity, anxiety, and susceptibility to stress
Everyone falls somewhere on the spectrum for each of these 5 traits. No trait is inherently “good” or “bad” in all contexts — but when it comes to income, the research suggests that certain profiles are more financially advantageous than others. The Canadian study used standardized measures of all 5 Big Five traits and then calculated how a one standard deviation change in each trait corresponded to a percentage change in annual earnings. The results were striking.
The High-Earning Personality Traits: What Boosts Your Income
Trait #1 — Conscientiousness and Salary: The Strongest Link
Of all 5 Big Five traits, conscientiousness shows the strongest and most consistent positive relationship with income — making conscientiousness and salary arguably the most important connection in the entire study.
The data indicates that a one standard deviation increase in conscientiousness is associated with a 6.2% to 7.4% increase in annual earnings overall. When the results are broken down by gender, the effect appears even stronger for women: research suggests that highly conscientious women may experience income gains of approximately 10% per standard deviation, compared to around 6.7% to 7.4% for men.
Conscientiousness is defined as the tendency to be organized, dependable, self-disciplined, and persistent in pursuing goals. People high in this trait typically display the following characteristics:
- Diligence and reliability — they show up, meet deadlines, and follow through on commitments
- Strong time management — they plan ahead and use their time productively
- Persistence under difficulty — they don’t give up when tasks become challenging
- High personal standards — they hold themselves accountable for the quality of their work
It is easy to see why these qualities would translate into financial rewards. Employers trust conscientious employees with greater responsibility, which often leads to promotions and higher compensation. Conscientious individuals are also more likely to set and achieve long-term career goals, build strong professional reputations, and avoid costly mistakes caused by carelessness or impulsivity.
Importantly, conscientiousness tends to be valuable across virtually all industries and job types. Whether you work in finance, healthcare, technology, education, or the trades, being reliable and hardworking is universally appreciated — and financially rewarded.
Trait #2 — Extraversion Earnings: Social Skills Pay Off
Extraversion is the second personality trait with a meaningful positive association with income, though its effect tends to be smaller and more context-dependent than that of conscientiousness.
Extraversion is defined as the tendency to be sociable, assertive, energetic, and enthusiastic in social situations. People high in extraversion typically exhibit these qualities:
- Strong networking ability — they build and maintain professional relationships naturally
- Comfort with self-promotion — they are willing to advocate for themselves and their ideas
- Team-oriented energy — they energize group dynamics and collaborate effectively
- Confidence in communication — they speak up in meetings and negotiate assertively
These qualities translate to extraversion earnings advantages in several ways. Extraverts tend to expand their professional networks more aggressively, which opens doors to new opportunities and referrals. They are also more comfortable negotiating for higher salaries or asking for promotions. In roles that involve client-facing work, leadership, or sales, the extraversion advantage can be especially pronounced.
However, it is worth noting that extraversion’s impact on income is likely more career-specific than conscientiousness. For example, in roles such as research, programming, writing, or data analysis — where deep focus and independent work are paramount — the income advantage of extraversion may be limited. The key takeaway is not that introverts are at a disadvantage in general, but rather that extraverts tend to thrive in people-intensive roles and may be more likely to seek out such roles in the first place.
Trait #3 — Openness to Experience: A Creative Advantage
Openness to experience shows a more modest positive association with income compared to conscientiousness and extraversion, but it may offer a particularly strong advantage in certain industries and roles.
Openness is defined as the tendency to be intellectually curious, imaginative, and receptive to new ideas and experiences. People who score high in this trait commonly display:
- Intellectual curiosity — a genuine interest in learning and exploring new concepts
- Creative thinking — the ability to generate novel ideas and unconventional solutions
- Adaptability — comfort with change and an openness to trying new approaches
- Broad interests — engagement with a wide range of topics, which can support interdisciplinary thinking
In the modern economy, where innovation and adaptability are increasingly valued, these traits can translate into significant professional advantages. Highly open individuals may be more willing to pursue continuing education, embrace technological change, or pivot into growing fields — all of which can support long-term income growth.
That said, openness tends to be most financially rewarding in creative, entrepreneurial, or knowledge-intensive roles. In more routine or process-driven jobs, the income benefit of high openness may be less apparent. As with extraversion, alignment between personality and job type appears to be a key factor in determining how much a given trait contributes to earnings.
The Lower-Earning Personality Traits: What May Be Costing You
Trait #4 — Agreeableness and the Gender Pay Gap
High agreeableness is the personality trait most consistently associated with lower income in the research — and the agreeableness gender pay gap effect is one of the most striking findings in the entire dataset.
The study found that a one standard deviation increase in agreeableness is associated with a 4.8% decrease in annual earnings on average. However, this effect is far from equal across genders. For women, the income penalty associated with high agreeableness is estimated at 7.4% to 8.7% per standard deviation — nearly double the overall average. For men, the effect was statistically negligible.
Agreeableness is defined as the tendency to be cooperative, empathetic, trusting, and conflict-avoidant. People high in this trait often display:
- Difficulty with self-advocacy — reluctance to ask for raises, promotions, or better assignments
- Conflict avoidance — a preference for harmony that can lead to accepting unfavorable terms
- Deference to others — a tendency to follow rather than lead, even when leadership is warranted
- Over-accommodation — taking on extra work without requesting additional compensation
Why does high agreeableness appear to be more costly for women than men? Research suggests that social expectations may play a role. Women are often culturally expected to be cooperative and accommodating — sometimes referred to as “communal norms” — which means that highly agreeable women may feel additional pressure to conform to those expectations, making it even harder to advocate assertively for their financial interests. Men who are assertive are often rewarded; women who display the same assertiveness can face social backlash, creating a double bind that highly agreeable women are particularly likely to avoid.
It is important to emphasize that agreeableness itself is not a flaw. Empathy, cooperation, and conflict resolution are genuinely valuable qualities — both in the workplace and in life. The issue arises when these traits are expressed in ways that consistently prioritize others’ needs at the expense of one’s own legitimate career interests.
Trait #5 — Neuroticism: How Emotional Sensitivity Affects Earnings
High neuroticism — or a strong tendency toward anxiety, stress, and emotional volatility — is associated with lower income, with the research suggesting an approximate 3.6% earnings decrease per standard deviation increase in this trait.
Neuroticism is defined as the tendency to experience negative emotions more frequently and intensely than average. People who score high on this dimension often display:
- Stress sensitivity — a lower threshold for feeling overwhelmed by workplace pressure
- Anxiety and worry — a tendency to ruminate on problems and anticipate negative outcomes
- Emotional reactivity — stronger emotional responses to setbacks or interpersonal conflict
- Reduced resilience — greater difficulty bouncing back after failures or disappointments
These characteristics can affect income in several ways. High neuroticism may reduce overall job performance under pressure, increase the likelihood of interpersonal friction with colleagues or managers, and make it more difficult to pursue bold career moves such as negotiating a salary increase or applying for a competitive promotion. Some research also suggests that individuals high in neuroticism may be more likely to experience job dissatisfaction, which over time can lead to disengagement and reduced productivity.
Gender differences in the neuroticism-income relationship were less dramatic than those seen for agreeableness. Among men, the income reduction was approximately 3.7% per standard deviation. Among women, the effect was present but did not reach statistical significance in this particular dataset — though the researchers note that smaller sample sizes within subgroups may have limited the statistical power to detect effects.
Importantly, neuroticism does not doom anyone to lower earnings. Many highly successful people experience anxiety and emotional sensitivity. What matters is whether these tendencies are managed effectively — and there are well-established strategies for doing exactly that.
Gender Differences in Personality Traits and Income
One of the most important — and socially relevant — findings of the Canadian study is that the relationship between personality traits and income is not identical for men and women. The differences are particularly pronounced for 2 traits: agreeableness and conscientiousness.
As noted above, high agreeableness appears to carry a significantly larger income penalty for women (approximately 7.4% to 8.7% per standard deviation) than for men (where the effect was statistically negligible). Meanwhile, the income boost associated with conscientiousness appears to be somewhat stronger for women (roughly 10% per standard deviation) than for men (approximately 6.7% to 7.4%).
These patterns suggest something important: the financial system — at least as observed in this Canadian dataset — may respond differently to the same personality traits depending on who is displaying them. Several possible explanations exist:
- Social and gender role expectations — women who conform to expectations of being cooperative and self-effacing may be less likely to negotiate aggressively for higher pay, even when fully qualified
- Structural biases — workplaces may unconsciously reward assertive behavior differently depending on whether it comes from a man or a woman
- Occupational sorting — men and women with similar personality profiles may end up in different types of roles due to social pressures, and those roles may come with different pay scales
The takeaway is not that women need to fundamentally change who they are. Rather, it suggests that being aware of how personality interacts with gender dynamics in professional environments can be genuinely empowering. For highly agreeable women in particular, developing skills in self-advocacy and strategic assertiveness — while maintaining the collaborative strengths that make them effective team members — may represent a high-value investment.
Actionable Advice: Leveraging Your Personality Traits for Career Success
Understanding the relationship between your personality and your income potential is only useful if it leads to action. Below are practical strategies tailored to each of the 5 Big Five traits, including both strengths to build on and weaknesses to manage.
If You Score High in Conscientiousness
Your reliability and work ethic are genuine financial assets — make sure others can see them. Conscientious people sometimes work hard without making their contributions visible. Actively document your achievements, request performance reviews, and use concrete results to support salary negotiations. Because conscientiousness is valuable in virtually every field, you are also well-positioned to pursue leadership roles where your organizational skills will be especially appreciated.
If You Score Low in Conscientiousness
Building habits that simulate conscientiousness can partially compensate for a naturally lower score. Research in behavioral psychology suggests that external systems — such as time-blocking calendars, task management apps, accountability partners, or structured morning routines — can help less naturally disciplined individuals meet deadlines and maintain consistent performance. The goal is not to fight your nature but to build scaffolding that supports the behaviors associated with high earners.
If You Score High in Agreeableness
Your warmth and cooperativeness are genuinely valued — but they need to be balanced with self-advocacy skills. Consider treating salary negotiation as a learnable skill rather than a personality transformation. Practical steps include researching market rates for your role before any salary discussion, preparing specific evidence of your contributions, practicing negotiation conversations with a trusted friend or mentor, and framing requests in collaborative language (“I’d like to discuss how we can align my compensation with the value I’m delivering”). These techniques allow you to advocate for yourself without abandoning the cooperative style that makes you effective.
If You Score High in Neuroticism
Managing your stress response is not just a wellness issue — it is a financial strategy. Research in occupational psychology consistently shows that effective stress management improves decision-making, interpersonal performance, and job productivity. Practical interventions include regular aerobic exercise (shown to reduce anxiety symptoms), mindfulness-based stress reduction practices, ensuring adequate sleep, and seeking professional support such as cognitive-behavioral therapy (CBT) if anxiety is significantly interfering with work performance. The goal is to prevent high neuroticism from constraining your performance — not to suppress all emotional sensitivity, which can itself be a strength in empathetic, service-oriented roles.
If You Score High in Extraversion
Deliberately invest your social energy into high-value professional networks. Extraverts naturally build connections, but not all connections are equally valuable for career growth. Research on professional networking suggests that “weak ties” — acquaintances in different departments, industries, or organizations — tend to provide more novel job leads and opportunities than close friends who share your existing professional world. Strategic networking, attending industry events, joining professional associations, and maintaining a visible presence on platforms like LinkedIn can help extraverts convert their natural strengths into concrete income gains.
If You Score High in Openness
Channel your curiosity into skills and credentials that are financially valued in the market. Highly open individuals sometimes explore many interests without fully capitalizing on any of them. To maximize the income potential of openness, try to identify 2 or 3 areas where your creative and intellectual curiosity intersects with genuine market demand, and invest deeply in building expertise in those areas. Openness combined with depth of expertise tends to be particularly valuable in technology, strategy, design, and entrepreneurial contexts.
Frequently Asked Questions
Are personality traits and income really connected, or is this just correlation?
Research consistently finds a statistically significant association between Big Five personality traits and earnings, even after controlling for education and cognitive ability. While it is difficult to establish direct causation from observational data, the patterns are robust across multiple large studies and different countries. The most plausible interpretation is that personality influences behaviors — such as persistence, networking, and negotiation — that in turn affect income outcomes. The relationship is real, though the exact mechanisms are still being studied.
Can I change my Big Five personality traits to earn more money?
Personality traits are relatively stable over time, but research in psychology suggests they are not completely fixed. Studies indicate that conscientiousness and emotional stability in particular tend to increase gradually with age and with deliberate effort. More practically, even without fundamentally changing your personality, you can develop specific skills and habits — such as self-advocacy, stress management, or time management — that produce the same income-boosting behaviors associated with high-earning personality profiles.
Why does high agreeableness tend to lower income more for women than for men?
Research suggests that social and cultural expectations around gender play a significant role. Women are often expected to be cooperative and accommodating, meaning that highly agreeable women may face stronger internal and external pressure to avoid assertive salary negotiations or self-promotion. Men who display assertiveness are typically rewarded, while women who do the same may encounter social friction — creating a situation where high agreeableness is more financially costly for women. This is a structural issue, not a personal failing, and awareness of it is the first step toward addressing it.
Does being an introvert mean I will always earn less than extraverts?
Not at all. While research shows that extraversion is positively associated with income on average, this relationship is heavily influenced by job type. Introverts often excel — and earn very well — in roles that reward deep focus, analytical thinking, technical expertise, and creative problem-solving. The income advantage of extraversion is most pronounced in sales, management, and client-facing roles. Choosing a career that aligns with your natural strengths is likely a more effective income strategy than trying to become more extraverted.
How does conscientiousness specifically lead to higher earnings?
Conscientiousness and salary are linked through several practical mechanisms. Highly conscientious people tend to be more reliable and trusted with greater responsibility, which accelerates promotions. They set clearer career goals and pursue them systematically, reducing time spent in low-growth positions. They make fewer costly errors due to carelessness. They are also more likely to invest in ongoing professional development. Collectively, these behaviors compound over a career, producing significantly higher lifetime earnings compared to less conscientious peers with similar cognitive ability and education.
Does neuroticism always hurt income, or are there cases where it helps?
High neuroticism is generally associated with lower income, but the picture is more nuanced in specific contexts. Some research suggests that moderate levels of anxiety can function as a motivator — driving individuals to prepare thoroughly, anticipate problems, and avoid complacency. In roles where risk assessment, quality control, or crisis preparedness are central, a degree of emotional sensitivity may be advantageous. The key distinction is between anxiety that is managed and channeled productively versus anxiety that becomes paralyzing or disruptive to performance and relationships.
What is the best personality type for earning a high income?
Based on the available research, the profile most consistently associated with high income combines strong conscientiousness (diligent, reliable, goal-oriented), moderate to high extraversion (socially confident, assertive), and low neuroticism (emotionally stable under pressure). Openness and agreeableness play more nuanced roles depending on industry and role type. However, it is important to note that there is no single “ideal” personality — income is shaped by many factors, and individuals with virtually any personality profile can achieve strong financial outcomes by understanding their strengths and strategically managing their challenges.
Summary: Using Personality Self-Awareness as a Career Tool
The connection between personality traits and income is backed by substantial research — and the findings are both clarifying and actionable. Conscientiousness and salary show the strongest link, with highly conscientious individuals earning roughly 6% to 10% more per standard deviation than their peers. Extraversion and openness also tend to support higher earnings, particularly in social and creative roles. On the other side of the ledger, high agreeableness — especially among women — and high neuroticism are both associated with meaningfully lower income levels.
None of these findings are destiny. Personality is not a rigid sentence — it is a starting point. The most financially empowering thing you can do with this information is to develop a clear, honest picture of your own personality profile and then use that knowledge strategically: doubling down on your income-boosting traits, building skills that compensate for income-limiting ones, and choosing career environments where your natural strengths are genuinely valued.
Ready to see where you stand? Explore your Big Five personality profile and discover which of your traits are already working in your favor — and which ones might be worth developing further.
