By Jennifer Sieg UK family businesses are beginning to fear dishonesty within Labour’s tax plans set to be revealed in the upcoming Autumn budget, a new poll has found. The poll, conducted by Censuswide and commissioned by Family Business UK, revealed that out of the 500 UK business leaders surveyed, 80 per cent of family businesses said they did not believe the Labour Party was honest about its plans for tax rises. Most businesses cited a fear of rises in corporation tax, despite Labour’s manifesto pledge to small businesses to not increase it. Over half of the surveyed respondents also the G…