Why does my electricity bill amount change every month?

Your electricity bill changes every month because your electricity usage changes. Some months you may use more appliances, like fans in summer or heaters in winter. Sometimes guests or more household activities can increase consumption. Tariff rates or taxes may also change occasionally, affecting the final bill. If your meter reading varies due to higher appliance usage or longer usage hours, the bill automatically increases. Similarly, if you use fewer appliances or reduce usage, the bill becomes lower. So the monthly bill reflects your lifestyle and electricity use.