How to Write a Date on a Cover Letter (US Format)

11 min read

You've got a solid opening paragraph and a stale date from last month's batch apply. Recruiters notice the mismatch before they finish line three. It's a small field, but it signals whether this letter was written for today's req or dragged from a folder.

US business letters aren't fancy. They're predictable. When the header looks like a memo from 2024, the rest of your tailoring doesn't get the credit it deserves. You don't need a design degree. You need one line in the right place with today's date on it.

Before you export PDF, check your resume for free so tenure dates on the resume still align with Present and your send story. The letter date and resume timeline should tell the same week, not two different years.

Below: what recruiters expect in the header, five before-and-after teardowns across roles, what bad date lines share, a copy-paste header block, and FAQ. Pair formatting with cover letter generator output only after you hard-type the send date yourself.

What US cover letter headers get judged against

The standard: your name and contact lines, blank line, date line, blank line, employer name or salutation. Font 11 or 12 point, flush left, same family as the body. No bold date, no right alignment, no icons.

Recruiters aren't grading typography. They're checking whether this file looks current and whether you know basic US business letter order. A numeric slash date or a European day-first order reads like you copied a template from the wrong country.

Resume dates play a different job. Experience lines use Month YYYY ranges for tenure. The cover letter header uses Month Day, Year for a single send day. Mixing those styles on the letter looks like you pasted resume formatting into the wrong document.

Portals timestamp your click. Your PDF should still carry a matching date so when someone opens the attachment a week later, the letter doesn't look abandoned mid-pipeline.

Modern letters often drop the full postal address block. You still keep the date line even when you jump straight from contacts to Dear Hiring Manager. The date is what marks the document as a letter, not a resume appendix.

Conservative fields like banking and law still expect the full block sometimes. When in doubt, mirror the employer's career-site sample letter if they publish one. If they don't, default to contacts, date, salutation.

For spacing around the block, see cover letter spacing guidance . For resume tenure rules that pair with this header, read how to format dates on a resume for ATS .

How to write a date on a cover letter: five teardowns

Each pair is a header block only. Swap names and companies for yours. Minimal prose on purpose: you're copying structure, not reading theory.

Teardown 1: Corporate analyst (Workday upload)

Before: Header shows 08/27/26, employer block from a different company, date buried in Word footer.
After: August 27, 2026 as a normal paragraph under phone and email, then Dear Hiring Manager, then body opening with the req title.

Teardown 2: Registered nurse (hospital Greenhouse)

Before: 27 August 2026 day-first order, full hospital address block from a template never updated.
After: August 27, 2026, minimal header (name, city, license line), salutation to Nurse Recruiter or hiring manager name when known.

Teardown 3: Software engineer (referral PDF)

Before: Letter still dated June 2025 from an old referral draft; first paragraph names the wrong product team.
After: August 27, 2026, referral named in sentence one, date refreshed the morning of upload to iCIMS.

Teardown 4: Administrative assistant (paste box + attachment)

Before: Pasted body repeats the date line and blows the character limit; attachment has no date.
After: Paste box skips formal date (portal timestamps it); PDF attachment keeps August 27, 2026 under contacts for the file recruiters save.

Teardown 5: Internship applicant (career fair print)

Before: Stack of letters pre-dated two weeks before the fair; company name left blank.
After: Print the fair day's date on each copy handed out; employer name filled per booth before print when possible.

I've opened Greenhouse attachments where the body was tailored to the req but the date line still showed a Monday from three weeks back. The candidate clearly cared about paragraph two. The header told me they recycled the file without a last look.

[Your Name]
[City, ST] | [phone] | [email] | [LinkedIn URL optional]

August 27, 2026

[Employer Name optional]
[Company optional address line]

Dear [Hiring Manager name or Hiring Manager],

[Opening sentence naming role and one proof line from your resume.]
              

Before: Project coordinator letter, March 3rd, 2026 with ordinal suffix and bold date.
After: March 3, 2026 plain text, same weight as body, comma after day, no ordinal.

Before: Customer support rep, auto-updating DATE field that changed when the recruiter opened the file on a different day.
After: Frozen send-day string typed once before PDF export for Taleo.

Edge case: you apply Sunday night for Monday review. Use Sunday's date if that's when you submit. Weekend dates are normal.

Edge case: remote role across US time zones. Use your local calendar date unless the posting tells you otherwise.

If a recruiter asks you to resend an updated letter, bump the date and say what changed in sentence one. Don't resend with the old stamp and a new paragraph only.

Batch applicants: change DATE before company name. It's easy to update the employer block and forget the line above it. Put a highlighted placeholder in your master DOCX so it screams at you every morning.

Email with PDF attached: keep the dated PDF; the email thread already has a timestamp. You don't need a second date under your signature in the email body.

When both resume and letter upload, confirm file names follow upload order and file name conventions so the dated letter isn't the only file with last week's name in the folder.

What weak date lines share

Stale send days. A letter dated two months ago signals mass apply. Fresh dates signal you wrote for this req this week.

Numeric ambiguity. 03/04/2026 could be March or April depending on who's reading. Spelled months remove the guesswork for US screens.

Hidden placement. Dates living only in headers, footers, or text boxes disappear in some PDF views and never show in paste boxes. Keep the date in the main column.

Resume style on the letter. March 2021 – Present belongs on the resume, not as the cover letter header. The header is one day, not a job range.

Before: Future-dated letter because you planned to apply Friday and slid to the next week.
After: Date matches the actual submit click, even if that means editing Friday morning.

Before: Same dated PDF sent to two divisions at one employer with only the salutation changed.
After: Date and employer block both refreshed per upload so attachments don't look cloned in Workday.

This won't fix a weak body paragraph. It stops a polished letter from failing a five-second header scan that recruiters still run on busy afternoons.

Don't skip the date because the portal has a timestamp. Humans open attachments. The PDF is the artifact they forward.

Abbreviated months like Aug. 27, 2026 are acceptable but slightly informal. Full month names are safer for conservative industries like finance and law.

If you're using a cover letter from an internship guide, strip sample dates and company names before you save your master. Sample headers love to linger.

Career fair stacks need the fair date on every printed copy. Handing someone a letter dated last month at a booth is the paper version of a stale upload.

When you retarget the same employer for a second role, update date, salutation, and opening sentence. Recruiters compare attachments in the same profile.

Parents applying during nap windows: set a phone reminder to refresh the date line before export. Fatigue mistakes hit small fields first.

Night-shift applicants should still use the calendar day they submit, not the day their manager would read it. Consistency beats guessing HQ time zones.

Keep a one-line checklist on your monitor: contacts, date, employer, salutation, role name in paragraph one. That order catches ninety percent of header errors before PDF.

Check the upload package

Run the resume through the free ATS checker after you export. Parse errors and date mismatches between letter and resume are easier to fix in one sitting than after ten submits.

Use the cover letter generator for body structure, then insert your own header with a hard-typed Month Day, Year before PDF export. Don't assume the tool's default date is today's.

Paste the posting into score your job match when the letter is done. If match is low, fix resume bullet one before you polish the date line again.

Update the date before export

How to write a date on a cover letter is one decision: Month Day, Year in the body column, refreshed on submit day. Everything else in your application package is harder. This line is not.

• Replace DATE placeholders in your master file tonight.
• Run one apply with the header block from this page.
• Match resume Present dates to the same week as the letter.
• Skip numeric slashes for US corporate uploads.

Open your letter DOCX. Run a free ATS check on the resume you attach, then export both files with today's date line typed in plain text.

You won't lose an offer over a comma. You can lose a first read when the header screams recycled template. Fix the stamp, then fight for paragraph one.

Save the final PDF with the date in the filename only if your convention already uses dates. Otherwise keep filenames stable and let the in-document line carry the send day.

Share this page with someone who batch-applies on Sundays. Make them update the date line before they duplicate the file for Monday's list.

When internship season peaks, teach the Month Day, Year pattern once. Students reuse the same header for four years if nobody shows them the comma rule.