--- title: Letter of Intent (LOI) - Definition & Examples | RGM® Glossary url: https://realgrowthmatters.com/glossary/letter-of-intent-loi/ updated: 2026-06-10 source_html: https://realgrowthmatters.com/glossary/letter-of-intent-loi/ --- Growth Glossary — Definition SHT LETTER-OF-INTE # Letter of Intent (LOI) Non-binding agreement on key acquisition terms. A working definition from the RGM marketing glossary. Non-binding agreement on key acquisition terms. Term : Letter of Intent (LOI) Field : Finance & Unit Economics Category : Finance & Unit Economics ## The short definition Look at it this way.Letter of Intent (LOI) is a unit-economics concept. Fix what it covers before the team debates tactics, and the rest of the conversation gets easier. Non-binding agreement on key acquisition terms. This is a financial concept that affects how operators measure efficiency, value, or return. It typically appears in models, board reports, and management decisions about resource allocation. Misapplying or miscalculating it leads to bad decisions. Within Finance & Unit Economics, Letter of Intent (LOI) is a unit-economics concept. Get the definition right and the work that follows gets easier. ## The mechanics Keep this in mind.Letter of Intent (LOI) is no fixed dial. How it behaves depends on your audience, your channel mix, and the strategy around it. Letter of Intent (LOI) is not a switch you flip. It names a moving idea, and the way it plays out shifts with the setup. A lean team running one paid channel applies Letter of Intent (LOI) differently than a brand running ten. Use Letter of Intent (LOI) loosely and teams pull apart; pin it down and the math lines up. The working rule is plain. Agree what Letter of Intent (LOI) covers first, then act on it. Skip that order and Letter of Intent (LOI) loses its shared meaning, and two teams end up measuring two different things. One idea, plainly put. ## When to reach for it Pick one definition.Letter of Intent (LOI) earns attention at three moments: setting budget, choosing a metric, comparing options. Away from those, it waits. Bring Letter of Intent (LOI) in when a live choice hangs on it. In finance & unit economics work, that usually means one of three moments. Away from a decision, Letter of Intent (LOI) is background, not a lever. 1. **Setting budget.** Letter of Intent (LOI) clarifies which budget line deserves more. 2. **Choosing a metric.** Letter of Intent (LOI) checks that the figure is not just noise. 3. **Comparing options.** Letter of Intent (LOI) adjusts a compare so the gap is honest. ## An example with real numbers One idea, plainly put.The example below traces Letter of Intent (LOI) through a real Calm scenario, with real limits and a number to read at the end. Take Calm. During an LTV recut by cohort, the team made Letter of Intent (LOI) the deciding input, not an afterthought. They set a baseline first, agreed one definition of Letter of Intent (LOI), and only then read the result: the annual plan paid back 2.6x faster. The number matters less than the order. Example walk-through for Letter of Intent (LOI) -- figures illustrative, RGM analysis | Stage | Action | Why it mattered | | Baseline | Took a before reading on Letter of Intent (LOI). | A fixed point of truth. | | Define | Fixed one meaning of Letter of Intent (LOI) for the test. | A shared definition up front. | | Act | An LTV recut by cohort — one variable. | Only one thing moved. | | Result | The annual plan paid back 2.6x faster | An outcome you can trust. | Treat the Letter of Intent (LOI) figures as illustrative, labeled RGM analysis. Reuse the sequence, not the digits. ## Common mistakes Keep this in mind.Four failure modes recur with Letter of Intent (LOI). Name them and they are easy to design around. - **No segments.** Treating Letter of Intent (LOI) as one number for all. Break it out before you trust it. - **No anchor.** Quoting Letter of Intent (LOI) without a starting point. Always pair it with a baseline. - **Wrong target.** Treating Letter of Intent (LOI) as the goal. The goal is the outcome it predicts. - **Bad compares.** Benchmarking Letter of Intent (LOI) with no adjustment. Account for the model differences first. ## Common questions What is Letter of Intent (LOI)? Non-binding agreement on key acquisition terms. Settle what Letter of Intent (LOI) covers first; the strategy follows from there. Why does Letter of Intent (LOI) matter? Letter of Intent (LOI) shows up in budget reviews and channel reporting. Use it loosely and teams pull apart; use it precisely and the numbers line up. Where does Letter of Intent (LOI) get used? Teams put Letter of Intent (LOI) to work on a spend split, a metric, or a head-to-head call. See the Calm walk-through above. What is the most common mistake with Letter of Intent (LOI)? Using Letter of Intent (LOI) flat across every segment and showing it without context. Both make a guess look exact. What is Letter of Intent (LOI)? : Non-binding agreement on key acquisition terms. Settle what Letter of Intent (LOI) covers first; the strategy follows from there. Why does Letter of Intent (LOI) matter? : Letter of Intent (LOI) shows up in budget reviews and channel reporting. Use it loosely and teams pull apart; use it precisely and the numbers line up. Where does Letter of Intent (LOI) get used? : Teams put Letter of Intent (LOI) to work on a spend split, a metric, or a head-to-head call. See the Calm walk-through above. ### Related reading ### Related terms