Tutorial

Vesting Schedule Visualizer: See Exactly What's Vested and When

A live timeline turning a grant size, cliff, and vesting period into an actual vested amount at any point in time — clearer than doing the fractions in your head.

TS
The SimplyPTO Team
Sep 4, 2026 · 4 min read
SimplyPTO

Equity vesting math is simple in principle and surprisingly easy to get wrong quickly in your head — especially the cliff, which behaves differently from the smooth, intuitive line most people picture. Seeing it plotted out removes the guesswork.

Grant dateCliff at month 12Fully vested (month 48)

Vested as of month 18

1,500 units(38%)

Vesting monthly on a straight line to 48 months total.

Models the most common structure — a cliff, then straight-line monthly vesting — not every possible schedule. Real grants sometimes vest quarterly instead of monthly after the cliff, or use a different curve entirely; check your actual grant agreement for the specifics.

Why the cliff behaves differently than intuition suggests

The most common, costly misunderstanding is assuming vesting is a smooth line from day one. It isn't, under the standard structure: nothing vests at all before the cliff — not a proportional partial amount, zero — and then, once the cliff passes, the proportional amount for that entire elapsed period vests at once. Someone who leaves at month 11 of a 12-month cliff typically walks away with nothing from the grant; someone who leaves at month 13 typically has just over a year's worth already vested. That two-month difference in departure timing produces an enormous difference in outcome, which is exactly why understanding the cliff specifically matters more than understanding the general vesting curve.

Why the standard structure exists

The cliff exists specifically to protect the company from vesting meaningful equity to someone who leaves very early — without one, a hire who left after two months would still walk away with a small vested stake, which defeats much of equity's purpose as a longer-term retention and alignment tool. The subsequent gradual vesting, typically monthly, keeps the retention incentive active continuously rather than concentrated entirely at the far end of the total period.

What this tool doesn't model

Acceleration clauses. Some grants include provisions that accelerate vesting under specific conditions — commonly an acquisition of the company, sometimes an involuntary termination without cause. These are genuinely important and highly specific to the actual agreement, and this tool's straight-line model doesn't attempt to represent them.

Non-standard schedules. Some companies vest quarterly rather than monthly after the cliff, use a total period other than four years, or apply a different curve entirely (front-loaded or back-loaded vesting, for instance). The standard structure modeled here is the most common default, not a universal one.

Tax treatment. When equity is taxed, and how much, depends on the type of equity (options versus RSUs, for instance), when any options are exercised, and current tax law — genuinely important considerations this tool makes no attempt to address, and a real conversation for a tax professional, not a vesting timeline visualizer.

Using this for a hiring conversation

Walking a candidate through an actual visual timeline, with their specific proposed grant size and schedule, tends to communicate the structure far more clearly than describing percentages and months verbally — particularly the cliff, which is the single detail most likely to be misunderstood or overlooked entirely by someone evaluating an offer for the first time. Transparency here, including being direct about what happens if someone leaves before the cliff, builds more trust than leaving a candidate to piece the mechanics together from a dense legal document alone.

Using this to think through your own situation, if you're the one with a grant

If you're evaluating your own vested position — considering whether to leave a role, or simply trying to understand where you stand — running your specific numbers here gives a concrete answer to "what would I actually walk away with today" versus a fuzzy sense of "some of it, probably." This is often the single most consequential number in weighing a departure decision at a company where equity represents a meaningful part of total compensation, and it's worth knowing precisely rather than approximately.

A note on refresh grants

Many companies issue additional "refresh" grants to existing employees after their initial grant is partially or fully vested, each with its own cliff and vesting schedule running in parallel with the original. This visualizer models a single grant at a time — for someone with multiple overlapping grants, running each one separately and adding the results gives a full picture, since combining different cliffs and schedules into one calculation would obscure exactly the detail that matters most.

This matters more than it might seem, because a refresh grant's cliff resets the clock for that specific grant — someone with a fully vested original grant and a brand-new refresh grant still has a meaningful amount at risk if they leave before the refresh grant's own cliff passes, even though their overall tenure might suggest otherwise. Tracking each grant separately, with its own cliff date clearly noted, avoids the common mistake of treating "I've been here three years" as equivalent to "everything I've been granted is meaningfully vested."

Communicating this clearly to a new hire

When walking a candidate or new hire through their equity, showing the actual visual timeline for their specific grant — not just quoting the standard "four-year vest, one-year cliff" language — tends to produce a much clearer, more accurate understanding than words alone. Equity is often the least well-understood part of a compensation package precisely because it's described in percentages and years rather than shown concretely against a specific timeline, and closing that gap early avoids confusion or disappointment much later, at exactly the moment — a departure, an acquisition — when clarity matters most.

The short version

Vesting isn't a smooth line — the standard structure holds everything back until a cliff, then vests the accumulated amount at once before continuing on a gradual, typically monthly, schedule. Modeling your specific grant size, cliff, and vesting period against a specific point in time turns an abstract percentage into a concrete number of units, which matters most exactly at the moments — a hiring conversation, a departure decision — where the abstract version isn't good enough and a real, specific figure is what the decision actually depends on.

Frequently asked questions

What is a vesting cliff?

A minimum period — commonly 12 months — before any equity vests at all. Someone who leaves before the cliff typically receives nothing from the grant, regardless of how close they were to it; once past the cliff, vesting usually applies retroactively to the grant date.

What's the most common vesting schedule for small companies?

A four-year total vesting period with a one-year cliff is the most widely used default, though the specific structure varies by company and by role, and some grants use different total periods or vest quarterly rather than monthly after the cliff.

Does equity vest immediately after the cliff, or gradually?

Typically, once the cliff passes, the proportional amount for that whole period vests at once (commonly 25% at the one-year cliff on a four-year schedule), and the remainder vests gradually — often monthly — for the rest of the total period.

Is this tool a substitute for reading the actual grant agreement?

No — it models the most common structure to build intuition, but actual equity terms, especially around what happens on termination, acquisition, or other specific events, should always be confirmed against the real, signed agreement.

Related in Small Business HR

Stop tracking PTO in a spreadsheet

SimplyPTO tracks balances, requests, and approvals automatically — with a shared team calendar. Free for up to 10 people, no credit card.

Get started free →