I am on a fixed Tarif to 31 march . If I take a new fixed Tarif will it start from 1 April rather than immediately ? Obviously I don't want to switch early
If you switch a fixed tariff it will take place straight away. In your situation I would recommend not taking a new fixed tariff, wait to be put on the government capped standard variable rate in April. It will be expensive but probably cheaper than a fixed deal.