A fixed energy tariff can make budgeting easier because the unit rates stay the same for the agreed period, and it could cost less than your current deal. However, you might pay more if market prices fall, and some tariffs include exit fees or require a longer commitment. Your total bill can still change if your energy use changes, because standing charges and usage are separate from the fixed rates. Compare the tariff’s rates, fees and estimated annual cost with your current deal, and check Ofgem or Citizens Advice guidance before switching.