How to Write a Cover Letter for an Internal Position

When you apply internally, you have context most external candidates don't: you know the organisation, you understand the culture, and in many cases you know the hiring manager. These are genuine advantages. But they create a specific failure mode: candidates who assume the letter is a formality.

Hiring managers consistently report that internal candidates are among the weakest at cover letters. Because they know the company, they write cover letters that assume too much — skipping the "why here" entirely, writing shorter letters that lack evidence, or focusing on the political dimension of the move rather than the professional case.

An internal cover letter still needs to make the case for why you — not the other candidates, internal or external — are the right person for this role. The familiarity is background context. The professional evidence is still the point.

Skip:
- Company overview or background (they know you know the company)
- Generic enthusiasm for the organisation ("I am passionate about [Company]'s mission...")
- An explanation of your current role that they already know well

Include:
- A clear statement of which role you're applying for and from which team or position
- Why this specific role is the right next step — for the company, not just for you
- Evidence of what you've already delivered internally that demonstrates you're ready for this level
- Any relevant experience or skills that might not be obvious from your internal profile — project work, external training, qualifications, or work done outside your core role
- One or two specific outcomes from your current role that directly demonstrate your readiness

The internal cover letter is denser with internal evidence and lighter on company context. It reads differently from an external letter — but it should still be focused, specific, and professional.

One of the trickiest elements of an internal application is navigating your existing relationships with the people involved in the hiring decision.

If you know the hiring manager: Don't write as if you're continuing a conversation you've already had. The cover letter is a formal document that may be read by HR and others who don't know you. Write it with the same professionalism as if it were going to a stranger — while acknowledging the existing relationship briefly if it's relevant.

If you've already discussed the role informally: It's fine to reference this — "Following our conversation last month about the Head of Product role..." — but then make the formal case as if that conversation didn't guarantee anything. It probably didn't.

If someone internally endorsed you or suggested you apply: Mention it briefly at the top ("At [Manager's Name]'s suggestion, I'm formally applying for...") and then make your own case. Don't rely on the endorsement to carry the letter.

The rule: be warm and direct where the relationship warrants it, but write a letter that could stand alone if every person who reads it didn't know you.

Internal cover letters are usually applications for progression — a step up in level, scope, or responsibility. How you make that case matters.

Focus on what the company gains, not what you want. "I'm ready for more responsibility and I've been in this role for three years" is about you. "The work I've done on [specific project] over the past 18 months has prepared me to take on [specific aspect of the new role], and here's what that would mean for [specific business outcome]" is about them.

Use internal evidence specifically. You have access to a type of evidence no external candidate has: internal metrics, project outcomes, relationships built, and institutional knowledge. A specific outcome from an internal project — quantified and framed in terms of its impact on the business — is often more compelling than external credentials.

Don't over-explain the political context. "I feel I've been overlooked for progression and this role would give me the visibility I need" is never appropriate in a cover letter. Frame everything in professional, evidence-based terms.

Close with a forward-looking statement. What would you bring to this role that would move things forward? A brief, confident forward-looking sentence ("I'd relish the opportunity to bring the same commercial focus to a broader portfolio") ends the letter on the right note.