Resignation Letter by Email
Resigning by email is standard practice today, especially for remote or hybrid roles where an in-person handoff is not realistic. Getting the format right — a clear subject line, a formatted letter attached rather than buried in the email body — makes the difference between a professional record and a message that reads as an afterthought.
An email body is not the same as a letter
Writing your resignation directly into the body of an email, without a formal attached document, can come across as less deliberate than it is — and it is harder for HR to file cleanly as part of your permanent record. A short, clear email with a properly formatted resignation letter attached covers both: an immediate, easy-to-read message, and a document that holds up as an official record.
What the template covers
A clear, specific subject line
"Resignation — [Your Name] — Last Day [Date]" tells the recipient exactly what they are opening before they even read the message, which matters for a document that needs prompt attention from HR.
A short email body
One or two sentences noting that your resignation letter is attached and your last day, with the full detail — thanks, transition offer, formal notice — living in the attached letter instead.
The letter attached as a PDF, not just pasted into the email
A properly formatted, signed PDF is what typically gets filed in your personnel record — an email body alone is easy to lose track of once the thread gets buried.
Sent to the right people, and copied appropriately
Your direct manager as the primary recipient, with HR copied if your company's process calls for it — confirm this against your employee handbook if you are unsure.
Is an email resignation legally valid?
Yes — a resignation submitted by email, with or without an attached formal letter, is legally effective in every U.S. state. There is no requirement that a resignation be delivered in any particular format or medium. The ESIGN Act, 15 U.S.C. § 7001, specifically protects the validity of a document because it was created, signed or delivered electronically — an emailed, digitally signed resignation letter carries the same legal weight as a printed one delivered in person.
A remote employee with no office to walk into
An employee working fully remote for a company headquartered in a different state had never met her manager in person. When she decided to resign, there was no office to walk into and no natural moment for an in-person conversation. She scheduled a short video call to say so directly, then followed up the same day with an email containing a clearly formatted, signed resignation letter attached. HR confirmed receipt within the hour and processed her final pay according to the date stated in the letter — the entire process, start to finish, happened without either party being in the same room.
Questions people ask about this
Do I need to also submit a paper copy if I resign by email?
Usually not — most companies now accept and file electronic resignations without requiring a separate paper copy, though it is worth checking your specific employee handbook if your company has an unusually formal process.
Should I still tell my manager in person or by call before sending the email?
It is generally considered more professional, when feasible, to have a brief conversation first so your manager does not learn of your resignation cold from an email — the email and attached letter then serve as the formal, dated record of that conversation.
What time of day should I send a resignation email?
Business hours, ideally not right before a major deadline or event your team depends on you for — the timing itself can affect how the departure is remembered, separate from the letter's content.
Can I resign by email if my contract requires written notice?
Yes — email satisfies "written notice" in essentially every context, since it produces a dated, retrievable written record, which is what that kind of contract language is designed to ensure exists.