2018 Budget: A Payroll Analysis 2nd November 2018 National Minimum Wage is set to increase from April 2019: £8.21 per hour for ages 25 and over £7.70 per hour for ages 21 to 24 £6.15 per hour for ages 18 to 20 £4.35 per hour for ages under 18 Apprentices are increasing to £3.90 per hour Tax Allowances increase from April 2019: Personal Allowance increasing to £12,500 Marriage Allowance increasing to £1,250 Basic Rate limit is increasing to £37,500 Higher Rate stays the same at £150,000 Also from April 2019 the national insurance Upper Earnings Limit will increase in-line with the personal allowance to £37,500. It is also a good idea to remember that pension percentages will also be increasing from April 2019 to a total of 8%, with the recommended split of 5% employees and 3% employers.