FMLA, Explained by a Physician — and Why a Same-Day Online Note Isn't One

Adam Z. Kawalek, MD

Published June 11, 2026 · 2 min read

I'll be direct, because this is where a lot of people get hurt: a same-day online doctor's note and FMLA leave are not the same thing, and treating one like the other can cost you job protection you're actually entitled to. As a physician, here's what FMLA really is and why no asynchronous online note can satisfy it.

What FMLA actually is

The Family and Medical Leave Act is a federal law that gives eligible employees up to 12 weeks of job-protected, unpaid leave in a 12-month period for a serious health condition — their own or a qualifying family member's — among other reasons. The key words are job-protected: your role (or an equivalent one) and your group health benefits are preserved while you're out. That protection is the whole point, and it's far bigger than a single sick day.

Who qualifies

FMLA isn't automatic. In general, you must have worked for your employer for at least 12 months, logged at least 1,250 hours in the prior year, and work at a location where the employer has at least 50 employees within 75 miles. If you don't meet those thresholds, FMLA may not apply to you — though your state may have its own leave law that does.

What 'serious health condition' means

FMLA isn't for a routine cold. It covers a serious health condition — generally one involving inpatient care or continuing treatment by a health care provider. Think surgery, a hospitalization, a chronic condition requiring ongoing management, pregnancy complications, or a serious acute illness. A two-day stomach bug almost never qualifies; a condition that keeps you out for weeks and requires real treatment can.

Why an online same-day note can't satisfy FMLA

FMLA leave is supported by a medical certification — your employer can require a health care provider to complete a certification form documenting the serious health condition. That certification has to come from a provider with an actual treating relationship who can speak to your condition over time. Federal guidance is clear that the underlying visit must be a genuine clinical evaluation; an asynchronous review of a symptom form does not meet that standard. In plain terms: FMLA needs your treating provider, not a same-day documentation service.

What SickSlip can and can't do

SickSlip is an asynchronous service for routine, short-term absence notes. SickSlip cannot issue FMLA documentation, complete an FMLA certification form, or modify a note to add the diagnosis and treatment detail an FMLA form requires. We say this plainly on our site, because pretending otherwise would set you up to fail with HR — and we'd rather point you to the right path.

What to do instead

If you're facing a serious health condition and need real leave protection, start with your treating physician — the one managing the condition — and your employer's HR or leave administrator, who can give you the certification form. If you don't have an established provider, a telehealth service that offers scheduled video visits with a continuing provider relationship is a more appropriate route than any same-day note. Use a routine online note for what it's for: documenting a short, ordinary absence.

Adam Z. Kawalek, MD

Board-Certified Physician · Founder, SickSlip · Cedars-Sinai · Johns Hopkins

Dr. Kawalek is a hospitalist physician with 15+ years of clinical experience. He founded SickSlip to give patients fast, affordable access to legitimate medical documentation without unnecessary clinical barriers.