Rules, comparisons and data

Can you use contractions in an IELTS letter?

Yes in an informal letter, no in a formal one. IDP says informal letters are conversational and can include contractions such as can't, while formal letters should avoid them. IDP's own informal model letter uses I'm, can't and it's. A contraction is not an error in itself; what is assessed is whether your tone suits the reader all the way through.
  • Guide updated · 30 October 2026
  • 3 sections
  • IELTS
Take a free mock →Read the guide

Written byFizza Butool ZaidiIELTS teacher for 10+ years, PTE for 5Updated 30 October 2026

What IDP says

IDP describes an informal letter as conversational and says it can include contractions and more direct speech, while its table of formal and informal language pairs 'cannot' with 'can't' (IDP). Another IDP guide says that in formal letters you should avoid contractions, and that informal letters can include them (IDP).

Letter styleContractions?Source
Formal (Dear Sir or Madam)AvoidIDP
Informal (to a friend)Can includeIDP
Semi-formalIDP gives no separate rule; our samples allow a few and no slangBandLadder letter samples

Why it matters for your band

Contractions are a tone choice. The key assessment criteria ask you to consistently use a tone appropriate to the task, and IDP says being too casual in a formal letter or too formal with a friend affects your marks (IDP Australia).

Know your target? Check where you stand

Take a free AI-scored IELTS mock and see your score per skill before you book the real test. Free account, no card.

Take a free mock →

Practise before you book: free IELTS mock test, IELTS reading practice, IELTS listening practice and IELTS speaking predictions.

Task 2 is different

General Training Task 2 is an essay, not a letter. ielts.org describes it as a semi-formal/neutral discursive essay (ielts.org); it does not mention contractions. See the style for GT Task 2.

Frequently asked questions

Will one contraction ruin a formal letter?+

No official source says so. IDP's advice is to avoid them in formal letters because tone must stay consistent.

Should an informal letter use contractions?+

It can. IDP's informal model letter uses I'm, can't and it's, and IDP says informal letters can include contractions.

Are contractions fine in a semi-formal letter?+

IDP gives no separate rule for semi-formal letters. Our samples use a few and avoid slang, keeping the tone polite.

Can I use contractions in Task 2?+

ielts.org asks for a semi-formal/neutral essay and does not mention contractions either way.

Keep reading

Related

Guide updated on 30 October 2026. Individual prices and policies may have earlier observation dates. Confirm current details on the linked official pages before you book or apply.

© 2026 BandLadder. Written and checked by the BandLadder team. You may quote or cite this page with credit to BandLadder and a link to it; republishing it in full needs our written permission. Content use policy

Take a free mock