Updated: Added accessible data
From 1 April 2015 all central government departments, including their executive agencies and non departmental public bodies, are required to report on their prompt payment performance. They must publish the percentage of their invoices paid within 5 days and within 30 days, on a quarterly basis.
This is the data for the Cabinet Office.
See also Crown Commercial Service prompt payment data.
Read the Procurement Policy Note 05/15 on prompt payment and reporting performance.