Ask a typical client to state their net worth and they will list a portfolio, a home, maybe a retirement account. Almost no one spontaneously lists their human capital (the present value of their future labor income) even though, for most clients under roughly fifty, it dwarfs every other line on the list. This is not a rhetorical flourish; it is a computable asset with a present value, a risk profile, and a direct, load-bearing implication for how the rest of the portfolio should be built, and treating it as invisible is the single most common structural gap in a private-client asset-allocation recommendation.
How do you value human capital?
Compute human capital the same way you would value any other stream of cash flows: as the present value of a growing annuity, discounted at a rate that reflects the riskiness of the income, not the riskiness of the market. A tenured professional in a stable industry has income that behaves like a high-grade bond (steady, contractually reliable, weakly correlated with the stock market) while a commission-based salesperson's or an early-stage founder's income behaves like a volatile, equity-like stream that rises and falls with the same forces that move markets. This is the entire insight, stated as a single sentence: the more bond-like your human capital, the more your financial portfolio can afford to lean into equities, because your "bond" is already sitting in your paycheck. Worked Example 1 computes this precisely for a synthetic client. The short version: once you have a present value for human capital and an estimate of how equity-like versus bond-like it behaves, you can solve backward for the equity weight the financial portfolio needs to carry to hit a target blended (human-plus-financial) equity exposure. For a young, stable-income client that solved-for number often comes out above 100%. Read that as the model saying the binding constraint is implementation, since no honest IPS recommends leverage into equities for a salaried client, rather than conviction. Treat 100% as the practical ceiling, document why the unconstrained math pointed past it, and move on. This is the "the math says one thing, judgment applies a ceiling" moment the program trains you to hold without embarrassment. Compare M3.10's terminal-value-versus-EV flag: the tool tells you something true about its own assumptions, and your job is to read that signal rather than obey it blindly.
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Worked example: Farida and Arif
The discount rate is where the job enters. Start from the risk-free rate and add an occupational risk premium that grows with how volatile the earnings are. Farida Lokhandwala (synthetic), 44, sells equities to institutions for a broker, and her bonus rises and falls with market volumes. Her husband Arif teaches at a school on a steady salary. Give each of them ₹30 lakh of after-tax pay next year, growing 3% a year for 20 years. Discounted at a 7% risk-free rate, Arif's stream is worth about ₹4.0 crore. Add a 3-point premium for Farida's volatile pay and the same stream, discounted at 10%, is worth about ₹3.1 crore, more than a fifth less.
The premium prices how volatile the pay is. The allocation question turns on what the pay moves with. Farida's income falls in the same markets that cut an equity portfolio, so her human capital already behaves partly like equity, and the household's financial capital should carry less equity than a family whose earnings behave like a bond. Fuller versions also weight each year's pay by the chance of surviving to earn it. The simple version above ignores mortality.
Two practical notes on human capital
Two practical notes complete the picture. First, human capital depletes on its own schedule, shrinking toward zero as retirement approaches. That is the real reason a glide path shifts a portfolio from equity-heavy toward bond-heavy over a career. It is not a rule of thumb; it is financial capital gradually taking over the "bond" role human capital is vacating. Second, human capital is not fully insurable against the one risk it shares with a concentrated employer-stock position. That risk is a single shock, the employer failing or the industry being disrupted, hitting the paycheck and the portfolio at once. It is the correlation problem the concentrated-position section builds its central argument on.