A drink-through lid with spill resistant tab for use on a beverage container. The lid provides a drink outlet that allows liquid to fill a drink well base, from which a consumer may sip a beverage similar to using a cup. The lid is provided with a spill resistant tab. The tab may include a blade portion which fits through a slit in the drink-through lid. The blade extends outward to a distal blade edge adjacent an interior wall of the beverage container. The blade has a width W2 as wide or wider than the effective outlet width W1 of the drink outlet. The lid may be provided with a generally V-shaped groove having a slit at the bottom thereof for passage of the blade therethrough. In an embodiment, the tab may include a Z-shaped connector portion sized and shaped for interlocking mating engagement with the V-shaped grove.