How much money is enough? (TL;DR)

Full version: How much money is enough? on heylife.ai (9 min read). What follows is a 3-minute summary.

The TL;DR

Last month I quit a 6-figure, 4-day-a-week, fully remote job. 11 years at the same company. The money was great. I was 9 years into the 22 “best years” window I wrote about. And I kept asking myself one question: how much money is actually enough?

Decades of research keep landing on the same answer:

$90,000 to $145,000 of household income (in today’s dollars).

Above that, more money does very little for your happiness. Below it, more money does help.

That’s it. That’s the headline. Now the parts you should know.

Four studies, one reluctant agreement

• 2010, Kahneman & Deaton: experienced happiness rises with income up to ~$75,000 then plateaus (≈ $120K today). Life satisfaction keeps rising.
• 2018, Jebb et al.: satiation points around $65K experienced and $105K life evaluation in North America (≈ $90K and $145K today). Above them, more money sometimes decreased life evaluation.
• 2021, Killingsworth: real-time smartphone data, no plateau in sight.
• 2023, Killingsworth + Kahneman (reconciled): for already-happy people, happiness keeps rising. For unhappy people, it plateaus. More money will not fix unhappy.

The effect is tiny

The correlation between log income and happiness is 0.09. That’s “barely there.” Across the entire range from $15K to $250K household income, the average happiness gap is about 5 points on a 100-point scale.

A 4x income increase has roughly the same effect on happiness as:

• ~2x the boost of being married
• About the effect of having a weekend
• Less than one-third the effect of a headache

Read that last one again. A headache cancels out three pay raises. That’s the size of the effect.

Why we keep chasing anyway

• The hedonic treadmill. We adapt to everything in weeks. Even lottery winners revert to their baseline.
• The end-of-history illusion. We build for the person we are today, not for who we will be at 50.
• Social comparison. Live in a richer neighborhood, you’ll feel poorer. The treadmill is everyone else’s pace, not yours.
• We are bad at predicting what will make us happy. We think the new house will fix things. The research says it won’t.

What actually matters

A model from positive psychology called PERMA-V: Positive emotion, Engagement, Relationships, Meaning, Accomplishment, Vitality. Money is not on the list. Money is the enabler, not the thing.

The financial question becomes: does my next dollar of effort buy me more PERMA-V, or less?

A raise that costs you 10 more hours a week of stress and zero time with friends is a bad trade. A raise that lets you cut your commute and have dinner at home with your family is a great trade. The dollars are identical. The lives are not.

The regret asymmetry

The most common life regrets are about inaction, not action. The job you didn’t take. The trip you didn’t book. The conversation you didn’t have. Regrets about actions fade. Regrets about inaction linger. They keep showing up at 3am.

I almost stayed at my job another year. Then probably five. Then forever. Quitting was an action. Staying was the inaction I’d be looking back on at 60.

A simple test for any money decision

1. Time: does this give me more of it, or less?
2. PERMA-V: which ingredients does this strengthen? Which does it weaken?
3. Comparison: do I want this, or does someone I’m comparing myself to have it?
4. Adaptation: in 12 months, will this still feel different, or just be the new baseline?
5. Regret: will the version of me at 65 regret this action, or regret the inaction of not doing it?

Most people skip these questions because we make money decisions on autopilot. The same autopilot I was on for years.

Read the full version

This is the 3-minute version. The full piece on heylife.ai covers the studies in detail, what money won’t fix as much as you think (homes, cottages, big houses with long commutes, “stuff”), and why time beats money in the data, every time.

Read the full essay on heylife.ai →

It also explains the thinking partner I’m building: heylife.ai, a panel of advisor voices that surfaces at the moments money decisions happen, so you don’t have to figure it out on autopilot.