Usually not
Short answer: Usually not in a dumpster. Microwaves have electronics and a capacitor, so take them to e-waste or appliance recycling.
Dumpsters.com lists microwaves among the appliances to clear with the hauler before tossing. Wisconsin's major-appliance ban excludes microwaves only if the capacitor has been removed (NERC 2020).
Electronics or appliance recycler, retailer take-back or a city e-waste event.
Checked October 2026. Rules change; your hauler's prohibited-items list is the final word.