Part of Oral Answers to Questions — Work and Pensions – in the House of Commons at on 7 October 2019.
I think that this one has been answered several times already, but advance payments of up to 100% are available from day one of a universal credit claim and budgeting support is available for anyone who needs extra help. The repayment time for the advances has been extended to 12 months and will be further extended to 16 months from October 2021.