Question

Should I write a cover letter if it is optional?

Vault Verified
Curated Intelligence
Definitive Source
Answer

Usually yes, and the reason is simple arithmetic: if it is optional, many applicants will skip it, so writing a good one is cheap differentiation. A generic one, however, adds nothing and can subtract.

The letter earns its place when it says something the CV cannot. A CV shows what you have done. A letter can explain why you want this particular role, connect your experience to the specific problem the team appears to have, or address something that would otherwise raise a question.

That last use is the strongest. A career change, a gap, relocating to the area, applying slightly below your previous level, or lacking one stated requirement while having a good reason to be considered anyway. Each of these is a question mark on a CV and a short paragraph in a letter.

What makes a letter worthless is genericness. An opening declaring enthusiasm for a dynamic opportunity, a middle restating the CV, and a close about looking forward to hearing from you communicates only that you sent the same letter everywhere. If it could be sent to another employer unchanged, it is not doing anything.

Length should be short. Three or four paragraphs on a single page. Nobody has ever been rejected for brevity in a cover letter.

There are situations where skipping is reasonable: high-volume applications through a portal where no field exists, or roles where the process is explicitly CV-only. And a rushed, obviously templated letter is worse than none, so if you cannot write a specific one, the honest choice is to leave it out.

Related Questions