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Requesting Sick Leave From Work: What US Employees Should Know

Sick leave in the US is not one uniform national benefit β€” what you're entitled to and what your request needs to look like both depend heavily on where you work.

There is no federal law guaranteeing paid sick leave

Unlike many other countries, the US has no federal law requiring private employers to offer paid sick leave β€” what exists is a patchwork of state and local laws, plus individual company policies, so entitlement varies significantly by where you live and work.

A growing number of states and cities mandate it

A majority of US states, plus many individual cities, have passed their own paid sick leave laws requiring employers above a certain size to provide a minimum amount of paid sick time, typically accrued based on hours worked, though the specific accrual rate and cap vary by jurisdiction.

FMLA is unpaid job protection, not paid sick leave

The federal Family and Medical Leave Act (FMLA) guarantees up to 12 weeks of unpaid, job-protected leave for serious health conditions at qualifying employers, which is a completely different benefit from paid sick leave β€” FMLA protects your job, it does not guarantee you get paid during that time.

What a basic sick leave request typically includes

Most employers expect at minimum your name, the dates you'll be out, a brief general reason (a specific diagnosis is not usually required), and how you can be reached if needed, submitted through whatever channel your company designates, whether that's email, an HR system, or a manager notification.

Doctor's notes are usually only required past a certain length

Many employers only require medical documentation for absences lasting three or more consecutive days, since requiring a note for a single sick day is often seen as burdensome for both the employee and the healthcare system, though policies vary by company.

Why sick leave policy varies so much company to company

Because there is no single federal paid sick leave mandate, individual employers fill the gap with their own policies, which can range from no paid sick leave at all in states without a mandate, to generous unlimited sick leave at some employers, to leave bundled together with vacation as general "paid time off" (PTO) rather than a separate sick category.

PTO policies blur the line between sick leave and vacation

A growing number of US employers use a combined PTO bank instead of separate sick and vacation allotments, meaning a sick day and a vacation day draw from the same pool. This can simplify administration but also means using sick days reduces the time available for planned vacation later in the year.

Frequently Asked Questions

Can my employer require a doctor's note for one sick day?

In most states, yes, private employers generally can require documentation even for a single day, though this varies by state and by specific paid sick leave laws that apply β€” some jurisdictions restrict how quickly an employer can require documentation for a short absence.

Can I be fired for taking sick leave I'm entitled to?

Where a state or local paid sick leave law applies, retaliation for using legally protected sick leave is generally illegal. Where no such law applies and you are an at-will employee without other protections, the legal picture is less protective, which is part of why checking your specific state and city's laws matters.