Interest is the price of money. Borrow, and you pay it: on a car, a home, a business loan or a balance carried from one month into the next. Save, and you earn it: on a deposit, a money-market fund or a government bond. It is one number with two sides. To the borrower it is a cost. To the saver it is income. And like any price, somebody sets it.
Last week, the Central Bank of Eswatini (CBE) moved it. Meeting with its Monetary Policy Consultative Committee (MPCC) on 25 September, the Bank raised its discount rate by 25 basis points, a quarter of a percentage point, from 6.75% to 7%, effective the next day. Commercial banks have followed, lifting their prime lending rate from 10.25% to 10.50%.
A quarter of a point sounds tiny. On paper, it is. Spread across billions of emalangeni of household loans, business credit, deposits and investments, however, it starts moving real money between borrowers and savers. It changes the price at which a business can finance expansion, the return an investor can earn without taking on more risk and, ultimately, where capital decides to live.
Here is the part the headline leaves out. The Bank raised the price of money in the same breath as it lowered its own inflation forecasts. It now expects inflation to average 2.52% in 2026, down from the 3% it forecast in July. Its forecasts for 2027 and 2028 fell too, from 4.35% to 3.86% and from 3.55% to 3.45%. Inflation did tick up to 2.8% in August, from 2.5% in July, but that is still low by any recent standard. If inflation were the only thing that mattered, this would hardly look like an economy crying out for more expensive money.
It is, however, not the only thing that matters. Two days earlier, the South African Reserve Bank (SARB) had raised its repo rate by 25 basis points to 7.25%. To understand why that weighed more than our own inflation, start with the peg.
The South African connection
The lilangeni is pegged one-for-one to the rand. One lilangeni is worth one rand, and maintaining that relationship sits at the heart of the country's monetary system. The arrangement gives us something valuable: exchange-rate stability with the country from which the kingdom buys much of what it consumes. The price is that our monetary policy cannot operate in isolation.
Think about money as capital looking for somewhere to live. An investor deciding where to park short-term funds weighs three things: risk, whether the money comes back at all; liquidity, whether it can be turned back into cash quickly and without a loss; and return, what the investor is paid for bearing the first two. If comparable assets across the border suddenly offer a better return while rates here stay put, South African assets become relatively more attractive.
That does not mean every investor empties an Eswatini account and sends the money to Johannesburg. The underlying pressure, however, is real. Within the Common Monetary Area, capital moves relatively freely. Keep interest rates too far below South Africa's for too long and funds will seek better returns across the border. For a country defending a fixed exchange rate, sustained outflows matter, because the peg ultimately depends on confidence and adequate reserves.
This is the balancing act. The CBE must set the price of money for an Eswatini economy while keeping one eye firmly on the price of money in South Africa. September demonstrates that tension.
Two economies, one monetary anchor
In July, the CBE held its discount rate at 6.75% while South Africa's repo rate stood at 7%. The gap was 25 basis points. South Africa has now moved to 7.25% and Eswatini to 7%, so the gap is still 25 basis points. It is tempting to read that as a rule. It is not.
Over the past fifteen years the two rates have been level for about a third of the time. For a fifth of it, Eswatini's rate was the higher of the two. And for eighteen months through 2023 and 2024, while South Africa fought its own inflation, the CBE sat a full 75 basis points below the repo rate and left it there. The Bank tolerates a gap. What it watches is the direction the gap is moving in, and the company it is keeping. In September the United States Federal Reserve, the European Central Bank, the Bank of Japan and the SARB all raised rates in the same month. Holding at 6.75% would have meant letting the gap widen to 50 points just as money was getting dearer almost everywhere. The Bank chose not to.
Eswatini is not alone in this arrangement, and the three pegged members of the Common Monetary Area do not tag along in the same way. South Africa has raised rates twice this year, in May and September. Lesotho matched both within a day, settling 25 points below the repo rate each time. Namibia moved once, in June, held in August and now sits 50 points below until its own committee meets later this month. Eswatini let May pass, held in July and moved only in September. The pattern is older than this year. Through 2023 and 2024, with the repo rate at 8.25%, Lesotho and Namibia held 50 points below it and Eswatini 75. Same peg, same anchor, three different tolerances, and ours has been the widest.
The domestic picture alone would have argued the other way. The local economy grew 4.8% last year and is projected to grow 5.3% this year. The Bank has lowered rather than raised its inflation forecasts. South Africa faces almost the opposite combination: its economy contracted 0.2% in the second quarter, inflation reached 4.4% in August, and the SARB now expects it to average 4.4% this year as it tries to pull inflation back towards its 3% target.
One economy, therefore, has stronger growth and lower inflation. The other has weaker growth and higher inflation. Yet their interest rates cannot wander far apart. That is the bargain embedded in the peg. The kingdom gains currency stability and gives up some monetary freedom. The interest rate appropriate for Eswatini cannot be settled without a look at what is happening in Pretoria.
Money has become more expensive
For households and businesses, all of this arrives in one familiar place: the repayment. The discount rate is the benchmark price at which the central bank provides money to commercial banks, and changes in it travel through the financial system into lending and deposit rates.
Put numbers to it. On a E2 million home loan over twenty years at prime, the monthly repayment rises from about E19 630 to E19 970. That is E335 more a month, roughly E4 000 a year. On a E500 000 vehicle loan over five years, the increase is about E62 a month. Many borrowers pay above prime, so their numbers are larger. None of these amounts wrecks a budget on its own. The danger lies in pretending that small changes do not add up.
Now scale it. Private-sector credit stood at E23.8 billion in July, 11.4% higher than a year earlier: E10 billion owed by households, E12.9 billion by businesses and close to E1 billion by other borrowers. A quarter of a percentage point on that stock is roughly E60 million a year, moving from borrowers to lenders and, through them, to savers.
A business does not borrow a percentage. It borrows emalangeni, and it asks one question of any machine, vehicle or stock it finances: will the asset earn enough to cover the cost of the money and still leave a worthwhile return? As rates rise, that hurdle rises with them. Enough businesses reaching the same answer eventually shows up in investment, hiring and economic activity.
Higher rates do not remove money from your wallet at the MPCC meeting. They alter incentives throughout the financial system until millions of smaller decisions begin cooling demand.
The other side of the ledger
Borrowers naturally dislike higher interest rates. Savers should understand the other half of the story. Interest is simultaneously the cost of somebody's money and the return on somebody else's.
When rates rise, the returns on some deposits, money-market products and fixed-income investments become more attractive. That changes the calculation for anybody deciding between spending money, investing it in a business or parking it in a lower-risk instrument. If a low-risk instrument now pays more, any riskier investment must work harder to justify itself. Why take substantially more risk for a marginal improvement in expected return?
For SMEs looking for investors as well as loans, the benchmark has moved too. Capital now has a slightly more attractive alternative.
Watch the debt, not just the rate
Non-performing loans stood at E1.4 billion in July, although the ratio improved to 6.6% from 6.8% in June. For households, this is where the practical lesson begins.
Do not respond to a rate increase by panicking over every debt. Separate productive debt from expensive consumption debt. Know which loans carry variable rates. Check what a further increase would do to repayments before taking on another obligation.
For SMEs, run the same stress test. If your business survives only at today's repayment, it has very little room for error. Test what happens if financing becomes another half or full percentage point more expensive. Then test what happens if sales weaken at the same time. A business should know that answer before the bank does.
What the reserves are for
The CBE also reported E11.4 billion in foreign reserves as at 18 September, equal to 2.6 months of imports and down from E11.8 billion in July. The usual rule of thumb is three months. That number belongs in this conversation.
Foreign reserves are part of the defence behind the one-to-one exchange rate. They provide confidence that emalangeni can continue to be exchanged at parity with rand and give the country a buffer against external shocks. This is why monetary policy cannot be reduced to whether borrowers would prefer cheaper loans. Cheaper money is attractive. A stable currency is valuable too.
The difficult work of a central bank is recognising that those objectives can pull in different directions. Eswatini would naturally want rates that support investment in an economy still trying to create enough jobs and turn the infrastructure boom into lasting productive capacity. It must also protect price stability and confidence in the arrangement on which the lilangeni rests.
September made that trade-off easier to see. South Africa made money more expensive. The kingdom followed, keeping the gap at 25 basis points. Domestic inflation did not force the Bank's hand: its own forecasts were being revised down. The wider monetary neighbourhood did.
That is the lesson worth carrying beyond this particular meeting. When you borrow, the interest rate is not merely a percentage printed on a banking app. It is the price of somebody else's money. When you save or invest, it becomes the price somebody is willing to pay for yours.
And for a small economy whose currency is tied one-for-one to the rand, that price is never determined entirely at home. The lilangeni may live in our pockets. Its price, however, lives in a much bigger neighbourhood.