Pick your duration & details
Choose whether you're out today, tomorrow, or for multiple days. Add any optional context — a handover note, a reason, or a return date — in the free text field.
Write a clear, professional sick leave email in seconds — for work, or to let a school or university know you can't attend, how long you are out, who it is for, and your tone — then copy into Gmail, Outlook, or your mail app.
Build your sick leave email
Choose your duration and who you're writing to — manager, HR, a professor, or a school office — then add optional details, tone, and length, and generate a draft you can edit and send.
How long are you out?
Anything to add?
Pick your tone
How long should it be?
Who is it to?
Three steps from unwell to email sent — the whole thing takes under 30 seconds, subject line included.
Choose whether you're out today, tomorrow, or for multiple days. Add any optional context — a handover note, a reason, or a return date — in the free text field.
Go Believable for a professional email your manager will accept without question. Choose who it's going to — manager, HR, professor, teacher, or school office — and the AI adjusts accordingly.
Your sick leave email appears instantly — complete with a professional subject line and full body copy, ready to paste into Gmail, Outlook, or any mail app.
Whether you're out for a few hours or a full week — the generator writes the right email for your exact situation.
Send a quick, professional notification first thing in the morning — before standup, before the office notices, before anyone has to chase you.
Example
Sick Leave Today — [Your Name]
I'm writing to let you know I'm feeling unwell today and won't be able to come in. I'll check messages periodically and will be back tomorrow if I'm feeling better.
Give your manager or school advance notice for tomorrow's absence — professional, brief, and sent the evening before so nobody is caught off guard.
Example
Absence Notification — [Date]
I wanted to give you advance notice that I won't be able to come in tomorrow due to illness. I've flagged any urgent tasks to the team and will be available by email if needed.
For longer absences — whether a few days or the full week, handover arrangements, and how you'll stay in touch. Clear dates and coverage notes help your manager or school.
Example
Sick Leave — [Start Date] to [End Date]
I'm writing to inform you that I'll be absent from [date] due to illness. I expect to return on [date] but will keep you updated. I've arranged cover for my key responsibilities with [colleague].
The generator adapts the language, formality, and content to match who you're writing to — whether that's your line manager or your university tutor.
In a hurry? Pick the template that matches your situation, paste it in, and swap the bracketed details for your own. Each one is short on purpose — a sick leave email is a notification, not an essay.
Subject: Sick Leave — [Your Name]
Hi [Manager's name], I'm not well enough to work today and will be taking a sick day. I've flagged anything urgent to [colleague] and will check messages occasionally in case something needs me. I expect to be back tomorrow and will let you know if that changes. Thanks for understanding, [Your name]
Subject: Sick Today — [Your Name]
Hi [Manager's name], Apologies for the short notice — I've woken up unwell and won't be able to work today. I wanted to let you know as early as possible. I'll send an update later today on whether I'll be back tomorrow. Thanks, [Your name]
Subject: Sick Leave Request — [Your Name], [Date]
Dear HR team, I'm writing to let you know that I'm unwell and unable to work on [date]. Please record this as sick leave in line with company policy, and let me know if any documentation is required. Kind regards, [Your name]
Subject: Sick Leave — [Start date] to [End date]
Hi [Manager's name], I'm unwell and, based on how I'm feeling, expect to need sick leave from [start date] to [end date]. I'll keep you updated and let you know promptly if I'm able to return sooner. [Colleague] has visibility of my active work in the meantime. Thank you, [Your name]
Subject: Sick Day — [Your Name]
Hi [Manager's name], I'm not well today and won't be online as usual. I'll be fully offline to rest and will pick things up when I'm back. I've let [colleague] know in case anything urgent comes up. Thanks, [Your name]
Subject: Sick Leave — [Your Name]
Hi [Manager's name], I'm unwell today and will be taking a sick day. I'll keep you posted on tomorrow. Thanks, [Your name]
Not sure what to write? Every professional sick leave email needs these six elements — the generator handles all of them automatically.
Your subject line should make the purpose of the email immediately obvious. "Sick Leave — [Your Name]" or "Absence Notification — [Date]" are both standard and professional. Avoid vague subject lines like "Quick note" or "Hi".
State clearly when you will be out — whether that's just today, a specific date, or a range of dates. If you're unsure how long you'll be off, say so honestly and commit to keeping them updated.
You are not legally required to give medical details in a sick leave email. "I'm feeling unwell" or "I have a medical issue I need to attend to" is sufficient. Do not over-explain or apologise excessively — it raises more questions, not fewer.
For work emails, briefly mention any urgent tasks, who is covering in your absence, or what can wait until you return. For school emails, ask whether you can access notes or catch up on missed material.
Let them know whether you'll be checking emails or whether you need to be fully offline. Even a simple "I'll check messages periodically" sets expectations and shows professionalism.
Close with "Kind regards", "Best regards", or "Many thanks" — keep it professional even if the email is short. Avoid overly casual sign-offs like "Cheers" for anything going to HR or a formal recipient.
The generator handles all six automatically. Choose your duration, add any optional details, select your recipient and tone — and every element above appears in your generated email, correctly worded and appropriately formatted.
Most sick leave emails go wrong in the same few ways. Steer clear of these.
Over-explaining your symptoms
One line is enough. A detailed medical account invites follow-up questions you don't want.
Apologising too much
A single brief apology for short notice is fine. Three paragraphs of guilt makes a routine message feel like a confession.
Being vague about timing
Say which day or days you're out and when you'll next update them.
Sending it too late
Email before your normal start time wherever possible.
Promising availability you won't deliver
If you're resting, say you're offline — don't claim you'll "monitor Slack" and then disappear.
Skipping your company's process
If your workplace expects a call or an HR form, the email is an addition to that, not a replacement.
Because figuring out what to write when you're already unwell is the last thing you should have to do.
Every generated sick leave email includes a ready-to-use subject line alongside the body. Copy the subject, paste the body — your email is complete in one step.
The language, formality, and content shift based on who you're writing to — your manager gets a different email from your professor, which gets a different email from your school office.
Short absence or extended sick leave — the generator writes the appropriate email for your specific duration, including estimated return dates and availability notes where relevant.
Believable produces a calm, professionally appropriate sick leave email. Dramatic amps up the emotional weight. Absurd is there for when you simply can't face writing a serious email about a Tuesday morning.
Open the page, choose your options, click generate, copy. No loading screens, no waiting. Your sick leave email is ready faster than you can think of what to say.
No sign-up, no email address, no credit system. Generate as many times as you need, with no paywall between you and a finished email.
Anyone who has ever sent a "not feeling well" message and wondered if they said the right thing.
Send a professional sick leave email to your manager or HR before standup — without spending ten minutes staring at a blank compose window while feeling awful.
Notify your manager and team clearly without it sounding like you're disappearing. The generator includes availability notes so everyone knows what to expect.
Email your professor, lecturer, or tutor professionally — ask about missed content, explain your absence, and do it in language that sounds like an adult sent it.
Call in sick quickly before your shift starts. The generator writes a clear, professional notification your manager can act on immediately without needing to call back.
Write a confident, naturally phrased sick leave email in professional English — without worrying about tone, phrasing, or whether it sounds right to a native speaker.
If writing emails when you're already stressed makes everything worse — just use the generator. It handles the words so you can focus on actually resting and getting better.
Everything you need to know about writing and generating a sick leave email.
Yes — completely free, no account or sign-up required. Choose your duration, tone, and recipient, then generate and copy instantly. There are no usage limits or premium tiers.
Keep it professional and brief. State that you are unwell and unable to come in, give the date or expected duration, mention any urgent tasks and who is covering if relevant, and offer to be available for anything critical. Avoid oversharing medical details — a general reference to being unwell is sufficient and appropriate in almost all workplaces.
Yes. The generator covers sick leave emails for school, college, and university — including emails to professors, lecturers, tutors, teachers, and school offices. Select the appropriate recipient from the Who is it to dropdown and the AI adjusts the tone, formality, and content accordingly.
No — you are not legally required to give specific medical details. A general statement such as "I am feeling unwell" or "I have a medical issue I need to attend to" is sufficient in most workplaces and schools. The generator uses appropriately vague but professional language by default on the Believable tone setting.
A clear, direct subject line works best — it tells the recipient exactly what the email is about before they open it. Examples include: "Sick Leave — [Your Name]", "Absence Notification — [Date]", or "Unwell Today — [Your Name]". The generator automatically produces an appropriate subject line alongside the email body, so you do not need to write one separately.
Yes — select Multiple days from the duration options. The AI generates an email that covers an extended absence, mentions an estimated return date or notes uncertainty if appropriate, and includes any relevant handover notes if you add them in the optional details field.
No. Excuseify does not store the content of emails you generate. Your inputs and the generated email exist only in your current session and are not saved to our servers, shared with any third party, or used to train external models.Privacy Policy
Stop staring at a blank compose window. Generate a professional sick day email right now — subject line included, free, no sign-up.
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Need a full excuse instead of an email? Try the AI Excuse Generator. Replying to an email about your absence? Use the AI Email Reply Generator. For any workplace email from scratch, try the AI Email Generator. Browse all tools on the tools page.