You may be able to claim Universal Credit while working, including as an employee or self-employed person; there is no fixed hours limit. Your payment usually reduces as your earnings rise, with 55p deducted for each £1 of earnings after any work allowance. You may qualify for a work allowance if you have children or a health condition affecting your ability to work. Eligibility also depends on your household circumstances, savings and other income, so check the official GOV.UK Universal Credit guidance or use a benefits calculator.