A fix is not automatically safer
A fixed tariff can help with certainty, but only if the unit rates, standing charges, exit fees and contract length fit your household. Do not treat fixed as a universal answer.
Check the exit fee
If prices change again or your circumstances shift, an exit fee can matter. Write it down alongside the monthly estimate, not in the small-print column.
Check the meter and payment assumptions
Some tariffs depend on payment method, smart-meter status or online account handling. Make sure the quoted terms match how your household actually pays and submits readings.
Check usage, not the typical household
The price-cap headline uses typical consumption. Your home may use more or less, and standing charges apply regardless of usage. Use your own annual kWh where possible.
Use UK Shortlists next
Use the fixed-versus-variable and standing-charge checklists before opening provider pages. They keep the tariff decision evidence-led.