Jacob works part time for Zylon Ltd at a salary of £8, 000 a year. He is not a director of Zylon Ltd. On 30 November 2018, Jacob received a bonus of £1, 800 in respect of Zylon Ltd's trading results for the year ended 31 October 2018. He expects to receive a bonus of £2, 400 in November 2019 in respect of Zylon Ltd ’s results for the year ended 31 October 2019. What is Jacob's employment income for the tax year 2018/19?