An internship cover letter has a harder job than most. You're applying for a role designed for people without much experience, so you can't lean on a track record. What you can do is prove potential, fit and genuine interest, clearly enough that someone gives you the chance. Here's how, with a template and three worked examples.
What an internship cover letter must prove
You're not proving you've done the job before. You're proving three things:
- You understand what the role and the company are about, you've done more than skim-read the ad.
- You have something real to bring, a skill, a project, an attitude, evidenced not just claimed.
- You actually want this one, not just any internship that pays.
A generic cover letter fails all three at once. A tailored one is the entire game.
The structure
Keep it to one page, four short paragraphs:
Opening, the hook. Skip "I am writing to apply for…". Open with why this specific internship, or a genuine point of connection. "I've followed [company]'s work on [specific thing] since [course/project], and the [internship] is exactly where I'd want to start."
Why this company. Show you've looked. Reference something specific, a product, a value, a recent piece of work. This is the paragraph that separates the tailored letters from the spray-and-pray ones.
What you bring. Your strongest one or two pieces of evidence, a project, a skill, a relevant module, described with a concrete result. Tie each to what the internship actually needs.
Close. Brief, warm, forward-looking. "I'd welcome the chance to talk through how I could contribute to [team]." Then a normal sign-off.
Three worked openings
Finance internship:
"Restructuring my student society's £4,000 budget, and finishing the year with a surplus for the first time in three years, is what turned my interest in finance into something I want to build a career on. [Company]'s graduate finance internship is where I'd want to learn properly."
Marketing internship:
"I grew a course Instagram account from 80 to 1,200 followers in a semester by testing what actually landed. [Company]'s focus on [specific campaign/approach] is the kind of marketing I want to learn to do at a professional scale."
Tech internship:
"My final-year project, a [brief description], taught me as much about debugging my own assumptions as about code. [Company]'s [specific product/team] is where I'd want to keep learning that way."
Each one leads with a specific, evidenced thing and connects it to the actual company. None of them say "I am a hard-working team player".
Tailoring to the company
The "why this company" paragraph can't be reused. Before you write it, spend ten minutes finding:
- Something the company has actually done recently
- A value or mission they state explicitly
- Why those genuinely connect to you
If you can't find a real connection, that tells you something useful about whether to apply.
The mistakes that bin internship cover letters
- Generic and reusable, if you could send it to any company, so could everyone else.
- All about you, nothing about them, no evidence you researched the company.
- Repeating the CV, the cover letter should add context and motivation, not list the same bullet points.
- Too long, one page, four paragraphs. Respect their time.
- Vague claims, "passionate", "hard-working", "team player" with nothing behind them.
Check it lands
Once it's written, make sure the CV itself is sound. TAILOR's free CV Health Check scores your CV on its own, ATS-readiness, bullet quality and formatting, and flags your top fixes, in about 30 seconds, no card. A strong CV is the half of the application most internship applicants neglect.
An internship cover letter can't lean on experience. But specific, researched and genuine beats experienced-but-generic more often than you'd think.
Related: Graduate CV with no experience · Graduate scheme CV · How to tailor your CV to a job description