UK Treasury bills are considered low risk because they're issued by the UK's Debt Management Office with the backing of the UK Government. Read more here.
The UK government has a “AA”/AA/Aa3 credit rating from all major credit rating agencies, reflecting its strong financial position and ability to repay its debts.
This means that investors in UK Treasury bills are very likely to receive the amount they invested, along with the agreed-upon yield, at maturity.
