Millions of workers will see a cut in their National Insurance rate from tomorrow, which could help ease some financial strain on household budgets. Employees will see the main rate of National Insurance cut from 10 per cent to eight per cent from tomorrow, April 6. Millions of workers could save around £900 a year if they are making £35,400 or more, the Government has said. Those who are self-employed also stand to make savings as the main rate of Class 4 NI contributions will be reduced. The reduction is expected to save a self-employed worker earning £28,000 about £650 a year. The main rate…