- BoG Liquidity Mop-Up Reaches GH¢12.998bn in Latest 14-Day Bill Auction
The Bank of Ghana sold GH¢12.998 billion in 14-day bills at its latest securities auction, maintaining an average interest rate close to 10.50% as the central bank continued to use short-term instruments to manage liquidity within the financial system.
Results of Tender 874, held on August 10, 2026, show that the central bank sold GH¢12,998.08 million of the two-week securities. The auction forms part of the Bank of Ghana’s short-term liquidity-management operations rather than government borrowing to finance the budget.
The bills attracted discount-rate bids ranging from 10.4000% to 10.4578% per annum, with the entire range allotted in full. On an interest-rate basis, successful bids ranged from 10.4418% to 10.5000%.
The weighted average discount rate settled at 10.4555%, while the corresponding weighted average interest rate was 10.4978% for the August 10-11 period. The narrow spread across successful bids points to relatively concentrated pricing around the level at which the central bank was prepared to absorb liquidity.
The almost GH¢13.00 billion transaction is economically significant because Bank of Ghana bills play a different role from conventional Treasury bills issued on behalf of government. While Treasury securities principally form part of the government’s financing operations, central bank bills are monetary-policy instruments used to influence the amount of liquidity circulating through the banking system.
When excess liquidity accumulates, the central bank can issue its own securities and receive cash from banks and other eligible market participants in exchange. The money is temporarily withdrawn from circulation until the bills mature, helping the central bank manage conditions in the money market and keep short-term interest rates aligned with its monetary-policy objectives.
The scale of the August 10 operation therefore offers an indication of the amount of liquidity the Bank of Ghana was prepared to absorb at the prevailing rate, although the auction result alone does not establish the precise source of that liquidity or how much of the amount represents the rollover of previously maturing central-bank bills.
That distinction matters when interpreting a large headline number. A GH¢12.998 billion bill sale does not necessarily mean that an equivalent amount of completely new liquidity was permanently removed from the financial system; some of the issuance can replace securities reaching maturity, with the net liquidity effect depending on the difference between maturities and new sales.
The short 14-day maturity also gives the Bank of Ghana considerable flexibility. Rather than committing to a long-term monetary position, the instrument allows the central bank to reassess liquidity conditions every two weeks and determine how much cash should remain sterilised.
That becomes particularly important when monetary conditions are changing quickly. Banking-system liquidity can be affected by government expenditure, foreign-exchange transactions, maturing securities and other flows, requiring the central bank to continually balance the amount of money available against its inflation and interest-rate objectives.
The 10.4978% weighted average interest rate also represents the financial cost associated with the sterilisation operation. Central-bank liquidity management is not costless: interest paid on Bank of Ghana bills ultimately appears within the monetary authority’s own financial operations.
This creates an important policy trade-off. Absorbing excess liquidity can be necessary to maintain monetary stability, but persistent large-scale issuance can generate substantial interest expenses for the central bank if excess liquidity remains structurally high.
The strength of the operation should therefore not be judged solely by the amount sold. The more important questions are whether the liquidity absorption is consistent with the Bank’s monetary-policy stance, whether short-term market rates remain appropriately aligned and whether sterilisation costs are sustainable over time.
Tender 874 nevertheless shows that the 14-day bill remains an important part of the Bank of Ghana’s monetary toolkit. With nearly GH¢13.00 billion sold at an average interest rate of 10.4978%, the central bank continues to deploy significant short-term operations to manage liquidity conditions in Ghana’s banking system.
