A burning or "hot plastic" smell near an outlet is one of the few electrical warning signs that calls for action right away, not later today and not after you finish what you're doing. Unlike some of the more ambiguous signals covered elsewhere on this site — a flicker here, an occasional trip there — a burning smell means something is actively overheating right now, in real time, somewhere in that outlet, switch, or the wiring behind it. Here's exactly what to do, in order, and why each step matters.
Step 1: Unplug what's nearby, if it's safe to reach
If the smell is coming from a specific outlet and you can safely reach the cord without touching the outlet itself or the wall immediately around it, unplug whatever's plugged into it. This removes one possible source of the heat and stops that device from drawing further current through a connection that may already be compromised. It also removes a variable: if the smell fades once that device is unplugged, it helps confirm where the problem is coming from. If reaching the plug means touching the outlet, the wall around it, or anything that feels warm, looks discolored, or is producing visible smoke, skip this step entirely — don't touch it, and move straight to the breaker.
Step 2: Turn off the breaker for that circuit
Go to your main electrical panel and switch off the breaker that controls the affected circuit. This is a completely safe, normal action for a homeowner — you're flipping a switch on the outside of the panel, the exact same motion you'd use to reset a tripped breaker after a normal overload. You are not opening the panel's dead front cover, touching any wiring, or doing anything beyond moving a switch from "on" to "off." Cutting power to the circuit stops whatever's generating heat from continuing to draw current, which is the single most effective thing you can do in the first few minutes. If you're not sure which breaker controls the affected circuit, and your panel isn't clearly labeled, it's completely fine to shut off the main breaker for the whole house instead — better to lose power briefly than to guess wrong and leave the affected circuit energized.
Step 3: Call a licensed electrician promptly
Once the immediate heat source is unplugged and the circuit is off, call a licensed electrician right away — this isn't a problem to schedule for next week, or even to sleep on. A burning smell means insulation, a connection, or a component got hot enough to start breaking down chemically, which is a different and more advanced situation than a connection that's simply warm. That circuit shouldn't be used again until an electrician has located and fixed the cause, even if the smell seems to go away once the breaker is off. Describe what you smelled, where it was strongest, and what you did (unplugged the device, shut off the breaker, which one) so they understand the situation and can prioritize accordingly before they even arrive.
When to also call the fire department
Most burning-smell situations are handled safely with the steps above, but a few signs mean you should call your local fire department in addition to, or even before, an electrician: visible smoke of any amount, scorch marks or discoloration spreading on the wall or outlet, a smell that keeps getting stronger even after you've cut power to the circuit, or any sign of actual flame. If you have any doubt at all about whether the situation is under control once the breaker is off, it's always reasonable to call the fire department's non-emergency line, or 911 if things seem to be escalating, and let trained responders make that call in person rather than guessing from the smell alone.
Why "wait and see" is the wrong response here
Some electrical warning signs — an outlet that's a little warm, a breaker that trips occasionally under a heavy load — are worth watching and reporting to an electrician without necessarily requiring you to act in the next five minutes. A burning smell is different. It means something has already crossed the threshold from "developing problem" into "actively overheating," and that process doesn't reliably stop or cool down on its own just because you stopped noticing it. Treating a burning smell the same way you'd treat a milder warning sign — noting it, opening a window, and moving on with your evening — is the mistake that turns a fixable, contained problem into a house fire.
After the immediate response
Once the electrician has assessed and repaired whatever caused the smell, they'll tell you when it's safe to turn the breaker back on and use the circuit again. Don't restore power to that circuit yourself in the meantime just because the smell seems to have faded or enough time has passed — a faded smell doesn't mean the underlying cause resolved itself, only that whatever was overheating has cooled down for now. The connection, wiring, or component still needs to be found and actually fixed before that circuit is safe to use again.