For a basic rate tax payer to receive £68 of net wages costs an employer £113.80 (£100 plus 13.8% employer's national insurance, minus 20% income tax, minus 12% employee's national insurance)
This is an effective tax rate of 40.2%. AIBU to think that this is little more than a trick to say we have 20% income tax, when in fact the tax on earned income is at least 40%?