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How to write an IELTS semi-formal letter

6 min read · Updated 7 October 2026

A semi-formal letter is for someone you know by name but not as a friend: a landlord, your manager, a neighbour, a former teacher, a colleague. It is the tone candidates find hardest, because it sits between the other two: polite and respectful, but personal.

The format

  • Greeting: Dear Mr Hughes, / Dear Ms Wanjiru, / Dear Mrs Patel,
  • Sign-off: Yours sincerely, or Kind regards, or Best regards,
  • Name: your full name.

Use the person's title and surname, not their first name. "Dear Michael" is informal; "Dear Mr Hughes" is semi-formal.

The plan

The same as every letter:

  1. Purpose, often with a friendly opening first: "I hope you are keeping well. I am writing to ask whether…"
  2. Bullet 1, with details.
  3. Bullet 2, with details.
  4. Bullet 3, often a suggestion or request.
  5. Closing line: "Thank you for your help." / "I would be happy to discuss this at a convenient time."

How semi-formal sounds

A semi-formal letter can be warmer than a formal one, but still avoids slang and keeps the request polite:

Too formalSemi-formalToo informal
I wish to inform you that…I am writing to let you know that…Just a quick note to say…
I would be most grateful if…I would be grateful if you could…Can you…
I hereby request…Would it be possible to…?Any chance you could…?
Yours faithfullyYours sincerely / Kind regardsCheers

Some contractions are acceptable in a semi-formal letter to someone you get on well with, but leaving them out is always safe.

A semi-formal complaint, to a neighbour or a landlord, should stay friendly. You will see this person again. Explain the problem, suggest a solution, and end on a positive note: "I am sure we can sort this out."

Model letters

Common mistakes

  • "Yours faithfully" after a name. Use "Yours sincerely" or "Kind regards".
  • Writing to a landlord as if to a company. Stiff, legal-sounding language reads as cold.
  • Writing to a manager as if to a friend. "Hey, can I take next week off?" is too casual.
  • A first name in the greeting when the person is not a friend.

Check your letter

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