Thailand’s policy rate sits at 1%. Only Switzerland’s is lower. At its Wednesday meeting the Bank of Thailand left the rate there for the third time in a row, even as central banks elsewhere tighten to contain inflation driven by the Middle East war.
The Financial Times asked why the rate is so low, and its answer was “Japanification”: a long stretch of low inflation and weak growth. The Nation, reporting on the FT analysis, said Thailand is now among the region’s most exposed economies. Heavy household debt, fast ageing and tourism running below full capacity are all holding back spending.
Louise Loo, head of Asia economics at Oxford Economics, said ageing leaves Asia more vulnerable than other regions. “Thailand is bearing the heaviest impact because its debt is already extremely high,” she said.
Prices and growth
Before the Middle East conflict, Thailand had 12 straight months of deflation. The war pushed prices up, but that pressure has started to ease, and headline inflation fell for a third month in July, to 1.95%. The economy, the second-largest in Southeast Asia, has been stuck at about 2% annual growth for several years. The World Bank and IMF expect it to slow further in 2026.
Nond Prueksiri, a senior economist at Siam Commercial Bank’s Economic Intelligence Centre, called the low rate “more of a structural problem than a cyclical one.” In his words: “There is no meaningful pull from demand. We are an ageing society and carry heavy debt, leaving consumers with little room to spend more.”
Exports are squeezed too. Cheaper Chinese goods and new manufacturing bases such as Vietnam are taking business, and possible higher US tariffs and a shrinking labour force add to the strain.
The debt weight
HSBC puts household debt at 86% of GDP, “the highest among upper-middle-income countries worldwide.” Aris Dacanay, HSBC’s senior ASEAN economist, said most household income goes to repaying debt, which limits consumption. Companies are slowing expansion because they cannot count on domestic demand or pass higher costs to customers.
Don Nakornthab, assistant governor of the central bank’s Monetary Policy Group, called growth “low and uneven.” The rate could still be cut if a crisis hit, he said, but policy is “almost at the limit” of what it can do. He called for targeted financial measures and fiscal stimulus.
An Oxford Economics economist was blunter: “Monetary-policy transmission in Thailand is barely functioning.” Most support will have to come from government spending. Economists doubt there is room for it. They expect the government to start withdrawing some stimulus from 2027 as public debt nears its self-imposed ceiling of 70% of GDP. Dacanay expects the central bank to hold at 1% until the end of 2027.
A shrinking country
The birth rate has fallen to a 75-year low. World Bank data put fertility at 1.2 children per woman, against the 2.1 needed to keep a population stable. Experts say the population could drop from 67 million to 30 million over 50 years. The World Bank expects the over-65 share to double again by 2040, to about 26%.
Miguel Chanco, chief emerging Asia economist at Pantheon Macroeconomics, said the working-age population has been shrinking since before Covid. That points to low growth, low inflation and low interest rates. “The longer Thailand hesitates and delays reform, the more competitiveness it will lose to its regional rivals,” he said.
Independent economist Burin Adulwattana put it this way: “We will grow old without becoming rich.” Many analysts think Thailand may soon have a lower rate than Japan, which raised its own to 1% in June after years of negative rates and deflation and may raise it again as early as September.
