Equity vs Cash Compensation Modeler

An equity vs cash compensation calculator shows whether a lower base salary paired with RSUs or stock options actually pays more than a straightforward high-cash offer over the same vesting window. The math is harder than it looks: equity value depends on future growth that is uncertain, while the cash difference is immediate and guaranteed. This tool models both offers over the full vesting period, applies your tax rate to each, and shows you the break-even annual growth rate your equity needs to justify the salary cut — so you can weigh the risk-reward trade-off with real numbers instead of gut feel.

How to use this Equity vs Cash Compensation Modeler

1. 1Enter the base salary from the equity offer — the lower-cash, higher-equity package.
2. 2Enter the total RSU or stock-option grant value at current company valuation.
3. 3Set the vesting period in years — 4 years with a 1-year cliff is the most common tech schedule.
4. 4Enter your expected annual equity growth rate. Use 0% for a flat-valuation scenario, or the company's recent growth rate as an optimistic ceiling.
5. 5Enter the base salary from the competing cash-heavy offer.
6. 6Set your marginal tax rate — combined federal and state income tax. Salary and most RSU income is taxed as ordinary income.

How equity vs cash total compensation is calculated

The model sums total salary paid over the vesting period for each offer, adds the projected equity value at vest for the equity package, then applies the tax rate to both totals. The break-even growth rate is the annual return the equity must achieve for the equity package total to equal the cash package total — solving for the growth rate in the equity-at-vest formula.

Equity offer ($150k + $200k RSU, 4 yr, 20% growth) vs cash offer ($185k)

1. 01Equity base over 4 years: $150,000 × 4 = $600,000
2. 02RSU value at vest (20% annual growth): $200,000 × 1.20⁴ = $414,720
3. 03Equity package gross: $600,000 + $414,720 = $1,014,720
4. 04Equity package after 35% tax: $1,014,720 × 0.65 = $659,568
5. 05Cash package over 4 years: $185,000 × 4 = $740,000
6. 06Cash package after 35% tax: $740,000 × 0.65 = $481,000
7. 07Net advantage for equity: $659,568 − $481,000 = +$178,568
8. 08Break-even growth: equity wins even if stock falls ~8.5%/yr

What determines whether equity beats cash compensation?

Tips and things to know

• ✓Run the break-even growth rate first, before assessing any specific growth scenario. If the equity breaks even at 5%/yr, it's a low-risk trade. If it needs 40%/yr to break even, the equity has to outperform even aggressive assumptions.
• ✓Model three scenarios: 0% growth (equity stagnates), company growth rate (base case), and 2× growth rate (bull case). The spread shows you how sensitive the trade-off is to the equity assumption.
• ✓Don't anchor on grant size at hire. Refresh grants, performance bonuses, and promotion cycles will change the equity math over time. This calculator models the initial grant — total tenure compensation can differ significantly.
• ✓The tax rate matters more on high-equity packages. A $500k equity gain taxed at 45% vs 35% is a $50k difference. If you're in or near a higher bracket, account for the cliff accurately.
• ✓Salary growth is not modeled here. If the cash-heavy offer is at a company with faster salary progression, the gap can widen over time. Ask about typical YoY raises at each company, not just the starting number.

Equity vs Cash Compensation Modeler — bottom line

The equity-versus-cash decision is one of the highest-stakes financial choices in a technology or startup career, and it is routinely made without quantitative analysis. The framing that matters is not "how much is the equity worth?" but "what annual growth rate does the equity need to match the cash I am giving up?" That break-even rate converts an abstract uncertainty into a concrete threshold. If the break-even rate is 3%, the equity offer is low-risk to accept because very modest growth still makes it competitive with the cash alternative. If the break-even rate is 35%, the equity offer requires extraordinary performance to justify the salary sacrifice — and most companies, including ones that eventually succeed, do not achieve 35% annual growth. The most common mistake in evaluating startup equity is anchoring on the total grant value at current valuation. Private company valuations are illiquid estimates, not market-clearing prices — a $500,000 grant at a pre-revenue startup's $100M valuation has fundamentally different risk characteristics than $500,000 in public-company RSUs at market price. Discount private company equity by a realistic probability of a favorable liquidity event, which research consistently shows is lower than founders and recruiters imply. Second mistake: not accounting for dilution. Future funding rounds issue new shares, diluting existing equity holders. A 1% stake can become 0.6% after a Series C, reducing the grant's value relative to the original calculation. Third: ignoring vesting cliff asymmetry. A 4-year vest with a 1-year cliff means year 1 produces zero vested shares — if the company underperforms in year 1 and you depart, the entire grant is forfeited. Run the break-even analysis with this scenario in mind.

Official resources and further reading