Compare two paths, not a salary and a tuition bill
A college decision compares what may happen with the program and what may happen without it. The alternative could be employment, an apprenticeship, a different degree, or a lower-cost institution—not necessarily zero earnings.
Include net tuition and fees after grants, incremental living costs, additional education expenses, and earnings forgone while studying. Do not charge the college path for every living expense while pretending the alternative path has no housing or food costs.
If financing is used, model the loan’s cash flows consistently. Tuition paid with borrowed funds and the principal later repaid represent the same underlying cost; counting both as separate economic costs double-counts principal.
What major-level earnings data can tell you
The New York Fed provides national labor-market information and an annually updated outcomes-by-major table. It distinguishes early-career and mid-career groups and provides context about employment outcomes. Those data can inform assumptions but are not individual forecasts. [1]
Workers in different majors differ in many ways, and some obtain graduate degrees. A difference in observed median earnings is not automatically the causal effect of choosing one undergraduate major rather than another.
Use program-specific completion, borrowing, employment, and cost information where available. Local labor markets, career plans, and the probability of finishing can matter as much as a national median.
A simple payback example
Assume a program’s incremental total economic cost is $100,000, measured at graduation, and it produces an additional $15,000 of annual after-tax earnings relative to the alternative, starting one year later. With no growth or discounting:
Simple payback after graduation = $100,000 ÷ $15,000 = 6.67 years
If study takes four years, that is roughly 10.67 years from enrollment under the simplified model. State the starting point: “years to pay back” is ambiguous without it.
The example is intentionally hypothetical. It does not claim that any named major earns a $15,000 premium or pays back on this schedule.
Discounted payback asks a harder question
Money received years later is not economically identical to money available now. For annual incremental cash flow Cₜ and discount rate d:
Present value of a future cash flow = Cₜ ÷ (1 + d)ᵗ
Discounted payback occurs when cumulative discounted benefits recover the stated cost. At a positive discount rate, it is generally later than simple payback for the same positive cash flows. Some scenarios never recover the cost within the chosen horizon.
Keep the valuation date consistent. The scenarios below value cost at graduation and discount post-graduation benefits to that date. Add the study duration to express payback from enrollment; do not silently discount some costs to enrollment and others to graduation.
Test cost, earnings, and completion separately
A higher-cost program needs a larger or longer earnings premium to break even. A delayed graduation adds time and can add costs. A lower-than-expected earnings premium can move payback far into the future.
Model an on-time completion case, a delayed case, and a noncompletion or career-change case where appropriate. Do not assume everyone receives the median outcome or that an early-career wage grows indefinitely at a favorable rate.
A loan payment must be affordable during the early years even when the lifetime model looks positive. Payback and liquidity are different questions.
Interpret the scenario comparison honestly
The scenario comparison in this guide is a transparent hypothetical sensitivity analysis, not a current ranking of majors or a prediction of graduates’ salaries. Every cost, annual premium, study duration, discount rate, and horizon is stated.
A degree can have nonfinancial value: access to a profession, intellectual development, personal goals, or flexibility. Those benefits are not erased by a financial model, but they should not be disguised as guaranteed dollar returns either.
Use the analysis to identify the price you can justify, the borrowing you can sustain, and the assumptions that deserve further research before enrollment.
Payback sensitivity: cost and earnings premium
Five hypothetical scenarios, each with four years of study, a 3% discount rate, and a 40-year post-graduation horizon. Costs are valued at graduation; annual after-tax premiums arrive at year-end. No scenario is assigned to a named major.
| Scenario | Cost at graduation | Annual premium | Discounted payback after graduation |
|---|---|---|---|
| Lower cost | $40,000 | $15,000 | 2.82 years |
| Base example | $100,000 | $15,000 | 7.55 years |
| Higher cost | $160,000 | $15,000 | 13.05 years |
| Lower premium | $100,000 | $8,000 | 15.90 years |
| Higher premium | $100,000 | $25,000 | 4.33 years |
Frequently asked questions
Does a higher median salary prove a major causes higher earnings?
No. Observed earnings reflect many differences among workers, including further education and career choices. They can inform assumptions but do not establish an individual causal return.
Does the payback clock start at enrollment or graduation?
Either convention can be used if clearly stated. This page reports post-graduation payback and adds the stated study duration when showing years from enrollment.
Are the scenario charts a ranking of actual majors?
No. They are explicitly hypothetical sensitivity cases with transparent costs and earnings premiums. They are not verified current salary rankings.
Sources & calculation notes
Primary references are linked below. Dates, limits, and product terms can change; confirm the applicable details before acting.
Use this guide thoughtfully. Examples illustrate a calculation method, not a guaranteed outcome. The usefulness of any result depends on the definitions, measurements, and assumptions used.