How to Write Resume Bullet Points (STAR & XYZ Formulas)

Strong resume bullet points describe accomplishments, not duties. Each one should start with an action verb, explain what you did, and show a measurable result, a structure recommended by Harvard's Mignone Center for Career Success. The two easiest ways to get there are the STAR method and Google's XYZ formula.

Accomplishments vs. duties: what's the difference?

A duty tells the reader what you were supposed to do. An accomplishment tells them what actually happened because you were there. Recruiters can guess your duties from your job title. What they can't guess is your impact.

Duty (weak)	Accomplishment (strong)
Responsible for social media accounts	Grew Instagram following 240% in 12 months by launching a weekly video series
Handled customer complaints	Resolved 30+ escalations per week, raising CSAT from 3.8 to 4.6
Managed a team of engineers	Led 6 engineers to ship a payments feature 3 weeks ahead of schedule

The pattern: cut phrases like "responsible for," "duties included," and "helped with," and replace them with a specific verb and a specific outcome. Harvard's resume guidance is explicit on this point: begin each line with an action verb and use "accomplishment-driven" statements rather than task lists. If you're stuck for verbs, our resume action verbs list has hundreds sorted by skill.

How should you structure each bullet point?

The Harvard structure is simple:

Action verb + what you did + result or scope.

For example: "Redesigned the onboarding flow, cutting drop-off by 18% across 40,000 monthly signups." Verb first, context second, number last (or wherever it lands naturally). Keep the verb in past tense for previous roles and present tense for your current one.

What is the STAR method?

STAR stands for Situation, Task, Action, Result. It's usually taught as an interview technique, but it works as a drafting tool for bullets:

Situation: what was the context or problem?
Task: what were you asked to achieve?
Action: what did you specifically do?
Result: what changed, and by how much?

Write out all four parts in rough notes, then compress them into one line that leads with the Action and ends with the Result. The Situation and Task usually shrink to a word or two of context: "Inherited a backlogged support queue" becomes simply "Cleared a 400-ticket backlog in 6 weeks by introducing a triage rota."

What is Google's XYZ formula?

Google's recruiters popularized an even tighter template:

"Accomplished [X] as measured by [Y], by doing [Z]."

X is the accomplishment
Y is the metric that proves it
Z is the method

Example: "Accomplished a 35% reduction in cloud spend (X), as measured by monthly infrastructure billing (Y), by consolidating redundant services and rightsizing instances (Z)." In the final resume you'd smooth it out: "Cut cloud spend 35% by consolidating redundant services and rightsizing instances."

STAR helps you find the story; XYZ helps you compress it. Use whichever unblocks you — the finished bullet looks the same.

How do you quantify a bullet point?

Numbers make claims believable and give recruiters a fast way to size your impact. Four types of numbers work almost anywhere:

Percentages: growth, reduction, improvement ("increased renewal rate 12%")
Money: revenue, savings, budget managed ("managed a $1.2M media budget")
Time: speed, frequency, deadlines ("reduced close process from 10 days to 4")
Scale: people, customers, volume ("supported 200+ daily transactions across 3 locations")

No exact figures? Estimate honestly ("roughly 50 clients," "team of ~10") or quantify scope instead of outcome: how many people you trained, how many reports you produced, how large the audience was. MIT CAPD's resume resources make the same recommendation: demonstrate impact with concrete evidence wherever possible.

Before and after: bullet point rewrites across industries

Here are ten rewrites showing the formulas in action.

Marketing. Before: "Responsible for email campaigns." After: "Launched 12 automated email campaigns that lifted click-through rates 27% and drove $340K in attributed revenue."

Software engineering. Before: "Worked on the checkout service." After: "Rebuilt the checkout service, cutting page load time 40% and reducing cart abandonment by 9%."

Retail. Before: "Helped customers and ran the register." After: "Served 100+ customers per shift and upsold add-ons that raised average transaction value 15%."

Nursing. Before: "Cared for patients on a busy ward." After: "Managed care for 8–10 patients per shift on a 32-bed ward, maintaining zero medication errors over 18 months."

Teaching. Before: "Taught high school math." After: "Taught algebra to 120 students annually; raised standardized-test pass rates from 71% to 86% in two years."

Finance. Before: "Prepared monthly reports." After: "Automated monthly variance reporting, cutting preparation time from 3 days to 4 hours for a $50M portfolio."

Sales. Before: "Met with clients to sell software." After: "Closed $890K in new ARR in FY25, finishing at 132% of quota (top 3 of 24 reps)."

Operations. Before: "Oversaw warehouse processes." After: "Redesigned pick-and-pack workflow across a 60-person warehouse, improving order accuracy to 99.4%."

Customer support. Before: "Answered support tickets." After: "Resolved 45 tickets daily with a 96% satisfaction score, and wrote 20 help-center articles that cut repeat questions 30%."

Administration. Before: "Scheduled meetings and handled travel." After: "Coordinated calendars and travel for 4 executives, processing 200+ bookings a year with zero missed connections."

Notice that every "after" starts with a verb, contains at least one number, and fits on one line.

How many bullet points per role?

There's no single rule, but a reliable range:

Current or most recent role: 4–6 bullets
Previous relevant roles: 3–4 bullets
Older or less relevant roles: 1–3 bullets, or a single summary line

Weight your space toward recency and relevance. If a ten-year-old job earns as many lines as your current one, trim it. And if trimming still leaves you over a page, see how long a resume should be.

Keep each bullet to one line

Harvard's guidance favors concise, skimmable statements, and in practice the ideal bullet fits on a single line. The Ladders' 2018 eye-tracking study found recruiters spend an average of just 7.4 seconds on an initial resume scan, which means dense three-line paragraphs simply don't get read. If a bullet wraps to a second line, cut filler words, drop weaker details, or split it into two bullets. Two lines is the absolute ceiling; one is the target.

A final tip: your best bullets should also match the job you're applying for. Reorder and rephrase them per application; here's how to tailor your resume to a job description in about 15 minutes.

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