Clients who run a family business may be affected under controversial child benefit cuts set to be outlined in next week's Budget, according to accountants Baker Tilly.
The government has legislated to prevent a tax avoidance scheme involving the use of fake property businesses.
The Chancellor George Osborne is to set out a plan to reduce corporation tax to 20% in next week's Budget.
The highest rate offered on fixed-term five-year cash ISAs is down 10% on last year, from 5% to 4.5%, according to a comparison report released today.
Business secretary Vince Cable has signalled that the Liberal Democrats are willing to scrap the 50p tax rate, in exchange for a "mansion tax" on high value property.
The government must make reforms to improve transparency and clarity around tax on annuities and trivial commutation of pension pots, the Office for Tax Simplification (OTS) has said.