“Years of experience” means the total length of time — measured in years — that a person has spent doing a particular job, task, or skill. It’s one of the most common phrases in job postings and resumes, usually written as “5 years of experience” or “3+ years of experience,” and it’s used to signal how much practical, hands-on time someone has logged in a field. The phrase itself is grammatically simple, but people trip up on how to punctuate it, how to count it, and how to phrase it naturally in a sentence.
The Short Answer
“Years of experience” is a noun phrase describing accumulated time-on-task in a role or discipline. No hyphens, no apostrophes needed in the base phrase. You’ll see it in three common forms:
- “5 years of experience” — the standard, spelled-out version.
- “5 years’ experience” — British/formal style, using a possessive apostrophe (years’ = belonging to five years).
- “5-year experience” — incorrect. This is a common non-native error; “experience” isn’t counted the way “job” or “plan” would be with a hyphenated modifier.
Why the Apostrophe Confuses People
The apostrophe version — “five years’ experience” — trips up even confident writers. Here’s the logic: think of experience as something that “belongs” to a stretch of time, the same way you’d write “a day’s work” or “two weeks’ notice.” Since “years” is plural, the possessive apostrophe goes after the s, not before it.
- Correct: “She has ten years’ experience in marketing.”
- Also correct (and more common in American English): “She has ten years of experience in marketing.”
- Incorrect: “She has ten year’s experience” (wrong plural) or “ten years’s experience” (not a real form).
If the apostrophe rule feels shaky, just default to “years of experience.” It’s the safer, clearer, and more widely used option — especially in American resumes and job listings.
How to Use It in a Sentence
- “The role requires at least three years of experience in customer service.”
- “With over a decade of experience, she led the redesign project herself.”
- “He has two years of experience working remotely as a developer.”
- “Candidates should have 5+ years of experience in digital marketing.”
Notice that “of experience” almost always follows a number plus “years” — you rarely see “experience of years,” which sounds backward and unnatural in English.
On a Resume: Listing It Correctly
When you’re writing your own resume or LinkedIn summary, a few small habits make this phrase land better:
- Lead with the number: “7 years of experience in project management” reads faster than “I have gained experience over 7 years.”
- Use “+” for open-ended ranges: “10+ years of experience” signals more without needing an exact count.
- Be specific about the field: “5 years of experience in B2B sales” beats a vague “5 years of experience” on its own.
- Avoid double-counting: if you had overlapping jobs, count total time in the field, not the sum of each job’s duration.
Counting Experience Honestly
A gap year, a part-time role, or a career switch can all complicate the count. The general rule: count the time you were actively doing the work, even part-time, but don’t inflate it by adding unrelated roles. If you worked two years full-time and one year part-time in the same field, most people round that to roughly 2.5–3 years rather than a flat 3.
Key Takeaways
- “Years of experience” is the standard, safest phrasing for describing accumulated professional or skill-based time.
- “Years’ experience” (with an apostrophe after the s) is a valid, more formal alternative — not “year’s” or “years’s.”
- Avoid hyphenating it as “5-year experience”; that construction doesn’t work in standard English.
- On resumes, lead with the number and pair it with a specific field for maximum clarity.
- Count actual time spent doing the work — don’t inflate overlapping or part-time roles.
Frequently Asked Questions
Is it “years of experience” or “years’ experience”?
Both are correct. “Years of experience” is more common and safer in everyday and American English; “years’ experience” is a formal, British-leaning possessive form. Avoid “year’s experience” or “years’s experience,” which are grammatically wrong.
How do you write “5 years of experience” correctly?
Write it exactly like that: number, then “years of experience,” with no hyphen and no apostrophe. “5-years of experience” or “5 year’s of experience” are both incorrect.
Can you say “years’ of experience” with an apostrophe before “of”?
No. If you’re using “of,” you drop the apostrophe entirely: “years of experience.” The apostrophe only appears in the alternative construction “years’ experience,” where “of” is dropped instead.
What does “3+ years of experience” mean in a job posting?
It means the employer wants candidates who have at least three years of relevant experience, with no strict upper limit. It signals a minimum threshold rather than an exact number.
Should I round up my years of experience on a resume?
Round to the nearest reasonable figure rather than inflating. If you have 4 years and 9 months, rounding to “5 years of experience” is fair; jumping from 3 years to “5 years” is misleading and can backfire in an interview.
Small phrases like this one are easy to overlook, but getting them right adds polish to a resume, cover letter, or LinkedIn profile. If phrasing questions like this one come up often for you, it’s worth browsing more entries here on commonly confused professional expressions.
