Treasury Bill Auction Signals Peak Interest Rates, but Borrowing Costs Could Remain High Until Late 2027

Namibia's latest Treasury bill auction suggests that interest rates are approaching their peak, but households and businesses should not expect borrowing costs to ease anytime soon, with meaningful relief unlikely before late 2027.

Namibia's latest Treasury Bill auction, as of 30 October 2026, was held on 29 October 2026, according to the Bank of Namibia's (BoN) government securities auction records.

Although the government successfully attracted sufficient bids to cover its borrowing requirements, the results point to tightening domestic liquidity and a narrowing gap between short- and longer-term interest rates. The developments suggest that the market has largely absorbed the recent Bank of Namibia repo rate increase and is anticipating a prolonged period of elevated borrowing costs.

A Treasury Bill (T-Bill) auction is when a government raises money by borrowing from investors, banks and other financial institutions by selling short-term government debt.

In simple terms, the government needs money to finance its expenses, so it borrows from investors and promises to pay them back after a specified period, with a return.

According to Simonis Storm Economist, Almandro Jansen, the biggest adjustment occurred at the shorter end of the yield curve, rather than in the one-year Treasury bill.

The 364-day Treasury bill yield remained unchanged at 7.98%, while the 91-day bill yield increased by 13 basis points to 7.68%.

Jansen explained that the one-year rate had already adjusted ahead of the central bank's repo rate increase.

"The one-year bill was already trading at about 7.98% before Wednesday's repo increase, and it cleared at the same level today. In other words, the market priced the hike in advance," he said.

Consequently, the gap between the 91-day and 364-day Treasury bills narrowed to 30 basis points, compared with 43 basis points a week earlier and 51 basis points two weeks ago.

Jansen said the flatter yield curve suggests that investors are not anticipating an extended cycle of interest rate increases.

"When short-term rates rise faster than one-year rates, the market is saying it expects at most one more small increase, not a long tightening cycle," he explained.

Simonis Storm expects the repo rate to remain at 7.00% in December, although another 25-basis-point increase remains possible in early 2027 as inflation approaches an estimated peak of 6.2%.

Beyond interest rate expectations, the auction results reveal growing pressure on domestic liquidity.

The overall bid-to-cover ratio declined to 1.60 times, from 1.79 times the previous week. Demand for the 364-day Treasury bill weakened more significantly, with its ratio falling from 2.91 times to 2.13 times.

The highest accepted bid on the 364-day instrument also edged above 8%, reaching 8.007%.

Jansen attributed the development primarily to limited cash availability rather than increasing concerns about government default risk.

"The auction shows less a demand for a higher premium than a shortage of cash. Domestic liquidity is tight. Banks and investors have less money to put to work, so government has to pay up slightly to fill its auctions," he said.

Meanwhile, government bonds maturing in the 2040s and 2050s continue to offer yields above 11%, reflecting weaker demand for longer-term government debt and investor concerns about the country's fiscal outlook.

The effects of higher interest rates are already filtering through to households and businesses.

Jansen noted that much of the initial adjustment has taken place through lending products linked to the prime lending rate, which increased to 10.50% following the central bank's decision.

Consequently, households with home loans, vehicle financing and overdrafts face higher repayment obligations, while businesses borrowing at money-market-linked rates will experience increased financing costs when their facilities are repriced.

Fixed-deposit and money-market savings rates are also expected to adjust upwards, potentially benefiting savers while increasing borrowing costs.

However, the broader concern is competition for limited domestic savings.

Jansen warned that government raises approximately 94% of its funding from the domestic market, placing it in direct competition with businesses for available financing.

"When cash is scarce and government is paying close to 8% for one-year money, it competes directly with businesses for the same savings. Banks may become more selective, and small businesses and first-time borrowers feel that first," he cautioned.

This could make financing more difficult for smaller enterprises seeking capital to expand operations, purchase equipment or manage working capital.

Even if the repo rate remains unchanged, access to credit could tighten as banks manage liquidity and lending risks.

Simonis Storm expects borrowing costs to remain around current levels through much of 2027, with prime potentially reaching 10.75% if another increase materialises.

For households and businesses, the message is clear: although interest rates may be approaching their peak, meaningful borrowing-cost relief is unlikely before late 2027.