The Causes of Happiness: One Study Said Happiness Peaked at $75,000 in Income

In 2010, Daniel Kahneman and Angus Deaton published a study that entered popular culture as a simple soundbite: happiness peaks at $75,000 in annual income. Above that amount, more money does not make you happier.

The soundbite was wrong. Or rather, it was a simplification that lost the meaning of the actual finding.

What the Study Actually Found

Kahneman and Deaton distinguished between two types of well-being:

Emotional well-being (how you feel day to day — your frequency of joy, stress, sadness, and anger) did plateau around $75,000. Below that threshold, low income amplified the emotional impact of life’s difficulties — divorce, illness, loneliness all felt worse when you were also financially stressed. Above $75,000, additional income did not meaningfully reduce the frequency of negative emotions.

Life evaluation (how you rate your life when you step back and think about it) did NOT plateau. Life evaluation continued to rise with income well past $75,000. People who earned more rated their lives as better, even if their daily emotional experience was similar.

The popular version collapsed these two distinct findings into one: “money can’t buy happiness after $75K.” This was a misreading of a nuanced result.

The 2023 Update

Matthew Killingsworth’s 2023 collaboration with Kahneman (published after Kahneman’s death) added important nuance. Using a much larger dataset and experience sampling (asking people how they felt in real time rather than in retrospect), Killingsworth found that for most people — roughly 80% — happiness continued to rise with income well past $75,000 and even past $200,000.

The exception: for the unhappiest 20% of the population, emotional well-being did plateau around $100,000. For this group, additional income did not help because their unhappiness was driven by factors that money could not address — depression, grief, chronic illness, relationship problems.

What Money Actually Does

Money reduces suffering caused by financial insecurity. When you cannot pay rent, afford healthcare, or feed your family, money solves those problems directly and the relief is enormous. This is why income gains below $75,000 (adjusted for inflation: roughly $100,000 in 2024 dollars) have such a large effect on well-being.

Above the security threshold, money buys options: better housing, more leisure, travel, education, the ability to leave a bad job or relationship. These options contribute to well-being, but with diminishing returns. The jump from $50,000 to $100,000 transforms your life. The jump from $200,000 to $300,000 improves it marginally.

The Practical Takeaway

Money matters — a lot — up to the point where financial security is achieved. Beyond that point, other factors (relationships, purpose, health, autonomy) become more important determinants of happiness. The $75,000 number was never a universal truth; it was a rough boundary between “money solves your problems” and “money improves your options.”

If you earn below the security threshold, prioritizing income is rational — it will improve your well-being more than almost any other intervention. If you earn above it, optimizing for income at the expense of relationships, health, or meaning is a poor trade.