IELTS Writing Task 1 Letter Checker: Avoid These Format Errors That Tank Your Score

Here's the thing: you can write brilliant English, but if your letter format looks sloppy, examiners will mark you down before they even read your content. The IELTS band descriptors for Task Response include "appropriate register and tone," which means your letter's physical structure matters as much as your words.

Most students lose 1-2 band points purely on format errors. Not content. Not grammar. Format. I'll show you exactly what the examiners are checking, and how to fix it before you submit.

The Format Blueprint: What Examiners Actually Look For in IELTS Letters

IELTS Task 1 letters follow a predictable structure. You need a sender's address, date, recipient's address, salutation, body paragraphs, closing, and signature. Miss any of these or arrange them wrong, and you're already at a disadvantage.

Here's the standard layout for a formal letter:

• Your address (top left, 2-3 lines)
• Date (one line below your address)
• Recipient's address (one blank line, then 3-4 lines)
• Salutation (one line below, e.g., "Dear Sir or Madam,")
• Body (3-4 paragraphs, 150-250 words total)
• Closing (e.g., "Yours faithfully,")
• Your name (no signature line; typed name only)

You've got 20 minutes for this task. Spend 2 minutes planning the structure. It saves you points.

Mistake #1: Wrong Salutation or Closing Combination

This is where students panic. "Should I write 'Dear Sir' or 'Dear Mr Smith'?" The wrong choice here and you look careless.

The rule is simple: if you know the person's name, use it. If you don't, use a generic salutation. And match your closing to your salutation.

If you're writing to a named person:

Here's the cheat sheet to memorize:

• Unknown person: "Dear Sir or Madam," + "Yours faithfully,"
• Known person: "Dear Mr/Ms [Last Name]," + "Yours sincerely,"
• Never use: "Hello," "Hi," "Thanks," "Best regards," or "Sincerely" (American)

Mistake #2: Messy or Missing Address Layout

Your address goes top left. The recipient's address goes below, left-aligned. Many students skip this or cram it all together, making the letter look unprofessional. When you check your IELTS letter structure, spacing is one of the first things examiners notice.

Notice the spacing. One blank line between your address and the date. One blank line between the date and the recipient's address. This makes the letter scannable and professional. Examiners notice.

Mistake #3: Incorrect Date Format

IELTS uses British English. British date format is: day month year, with the month written out as a word.

Acceptable variations: "15th September 2024" or "September 15, 2024" (if you're in a country using month-first format). But stick with one style per essay. Switching formats makes you look unfocused.

Mistake #4: Paragraph Structure That Confuses Readers

A letter isn't an essay. You need 3-4 short body paragraphs, not 5 long ones crammed together.

Standard letter structure: introduction (state purpose), 1-2 middle paragraphs (explain details), closing (polite sign-off).

See the difference? Separate paragraphs for introduction, explanation, and request. The reader can follow your logic. The examiner sees you understand letter conventions and formal letter format errors are avoided.

Mistake #5: Forgetting to Sign Off Correctly

After "Yours faithfully," or "Yours sincerely," you type your full name. Not a handwritten signature. Not initials. Your typed full name.

IELTS is typed. You don't handwrite it in most test centers. Your typed name is your signature.

Mistake #6: Using Informal Language in Formal Letters

Format isn't just structure. It's also tone. A formal letter requires formal language. Contractions, slang, and casual phrasing hurt your band score under "Coherence & Cohesion" and "Lexical Resource."

Avoid: casual phrasing like "got," "thing," "lots of," "basically," "huge," all caps for emphasis, and double exclamation marks.

Instead, use: "received," "issue," "numerous," "fundamentally," "significant," proper punctuation. One exclamation mark maximum, and only for emphasis in the closing request.

Mistake #7: Length Violations That Cost You Task Response Points

IELTS Task 1 requires a minimum of 150 words. The soft upper limit is around 250-280 words. Go below 150 and you lose points. Exceed 280 significantly and examiners wonder if you can follow instructions.

Count your words. Actually count them. Don't guess. The addresses and salutation don't count; only the body of the letter counts toward the 150-word minimum.

How to Check Your IELTS Letter Before Submitting

Use this checklist every time you write a Task 1 letter. 30 seconds of checking saves you band points.

• Your address at top left, one line blank, then date
• One blank line, then recipient's address
• One blank line, then salutation with comma
• Body split into 3-4 short paragraphs
• One blank line, then closing ("Yours faithfully," or "Yours sincerely,")
• Your typed full name below closing
• Formal tone throughout (no slang, minimal casual contractions)
• Word count: 150-250 words in the body
• Date format: "Day Month Year" (e.g., 15 September 2024)
• Salutation/closing match (unknown person = faithfully; known = sincerely)

If you want to catch more subtle mistakes before submitting, try using a free IELTS writing checker that gives you specific feedback on letter structure and tone. Many students find it catches formatting issues they miss on their own, and helps identify common IELTS general training letter mistakes before the exam.