What to Say When Calling In Sick to Work

Last updated: July 31, 2026

Keep it short: "Hi [manager's name], this is [your name]. I'm not feeling well today and won't be able to come in. I'll keep you posted on tomorrow." You don't have to name symptoms or give a diagnosis — "not feeling well" covers everything. Call before your shift starts, and follow up in writing so there's a record.

Quick examples

Whether you're calling in sick, calling off work, or calling out — here are the go-to lines:

That's the gist. For full scripts and what to do when your boss pushes back, keep reading.

Why this call feels hard

Even when you're genuinely sick, calling in feels loaded — there's the guilt of leaving your team short-staffed, the worry that your boss won't believe you, and the weird pressure to sound sick enough on the phone. A 2024 survey found that 42% of workers who call in sick admit to rehearsing what they'll say beforehand (Bankrate Workforce Survey). You end up rehearsing a one-minute call for twenty minutes. Here's the thing: you don't owe anyone a performance. Keep it short, keep it simple, and move on.

Before you call

Script: Basic sick day

You say

"Hi [manager's name], this is [your name]. I'm not feeling well today and won't be able to come in. I'll keep you updated on how I'm doing for tomorrow. Is there anything urgent I should hand off?"

That's it. This works whether you're calling in sick, calling off, or calling out — the script is the same. You don't need to say what's wrong. "Not feeling well" covers everything from a cold to a migraine to food poisoning. If they ask for details, a vague "stomach thing" or "bad headache" is plenty.

Script: Multiple days

You say

"Hi [manager's name], this is [your name]. I've been sick since [yesterday/the weekend] and I'm not improving enough to come in. I'm hoping to be back by [day], but I'll keep you posted. I can check email periodically if anything urgent comes up."

If you're out for more than 2-3 days, some employers may ask for a doctor's note. That's usually within their rights, but they still can't demand a specific diagnosis.

Script: Mental health day

You say

"Hi [manager's name], I'm not feeling well and need to take a sick day today. I'll be back tomorrow."

You do not need to say "mental health day." Sick is sick. If your workplace culture is supportive of mental health, you can be more open — but you're never obligated to disclose.

If they push back

Tips

Common questions

What do you say when calling in sick to work?

Keep it short and direct: 'Hi [manager's name], this is [your name]. I'm not feeling well today and won't be able to come in. I'll keep you posted on tomorrow.' You don't need to give specific symptoms or a detailed medical explanation.

Do I have to explain why I'm sick?

No. In most cases, you're not required to share specific symptoms or a diagnosis. A simple 'I'm not feeling well' or 'I'm sick' is enough. Your employer can ask when you expect to return, but they generally cannot demand medical details for a single sick day.

Should I call or text when calling in sick?

Follow your company's policy. Some managers prefer a phone call, others are fine with a text or email. When in doubt, call — it shows more effort. If you text, follow up with an email to create a paper trail.

If making the call is the part you dread

Tell Mio the number to call. Mio dials, works through any menu or call-out line, and does the waiting. When a person picks up, Mio rings you and connects you — the call itself is thirty seconds.

Have Mio make this call →

Only pay when Mio gets you through — nothing if it doesn’t.