The Central Bank of Nigeria has confirmed that its Scripless Securities Settlement System, known as S4, is now fully deployed as the only channel for primary market auctions of government securities, marking a major shift in Nigeria’s sovereign debt operations.
The clarification follows the February 2026 Treasury Bills auction, in which the Federal Government offered N1.15 trillion across three tenors through a fully electronic, centralised process. Market participants say the exercise underscored the end of physical and fragmented bid submissions, with all activity now routed through a single digital window.
The News Chronicle understands that under the current framework, only authorised banks are permitted to submit bids on behalf of investors, with pricing, allocation and settlement handled entirely within the CBN’s system. The apex bank has also indicated that attention is gradually turning to extending the platform’s use to secondary market transactions.
Analysts describe the move as one of the most significant structural changes in the fixed-income market in years, arguing that it enhances transparency and improves price discovery. By consolidating auction processes, the CBN gains clearer insight into investor behaviour while reducing information gaps that previously shaped bidding outcomes.
Although the S4 platform has existed for over a decade, its full enforcement reflects the CBN’s broader push to sanitise the government securities market. With Treasury bills and bonds remaining central to fiscal funding and interest rate signals, the reform is expected to reshape auction dynamics and policy transmission across Nigeria’s financial system.
