National Savings and Investments
（重定向自National savings certificate）
![From the 1860s onwards, the customer would take their deposit book, such as this 1869 example, to a Post Office each time they made a transaction.](/Images/godic/202501/29/Inside_a_Post_Office_Savings_Bank_deposit_book2100.jpg")
![A 1921 receipt for a deposit of one shilling in the Post Office Savings Bank.](/Images/godic/202501/29/Post_Office_Savings_Bank_receipt_stamp_Blackpool_19212100.jpg")
![A publicity stamp from around the end of the Second World War urging investors to buy National Savings Certificates for National Reconstruction.](/Images/godic/202501/29/For_National_Reconstruction_Buy_National_Savings_Certificates_publicity_stamp2100.jpg")
![A National Savings Week publicity label from 1949.](/Images/godic/202501/29/British_National_Savings_Week_label_19492100.jpg")
National Savings and Investments (NS&I), formerly called the Post Office Savings Bank and National Savings, is a state-owned savings bank in the United Kingdom. It is both a non-ministerial government department and an executive agency of the Chancellor of the Exchequer. Historically, the aim of NS&I has been to attract funds from individual savers in the UK for the purpose of funding the government’s public sector borrowing requirement (i.e., the funds in excess of taxation that the government requires to fund its expenditure). NS&I attracts savers through offering savings products with tax-free elements on some products, and a 100% guarantee from H.M. Treasury on all deposits. However, its interest rates are often low.