Is there sales tax on plumber installed water heater?

Whether sales tax applies to a plumber-installed water heater depends on the jurisdiction. In many places, the sale of the water heater itself is subject to sales tax, but labor for installation may be exempt. However, tax laws can vary significantly by state or locality, so it's important to check with local tax authorities for specific regulations. Always clarify with your plumber or contractor about how taxes are handled in your area.