Japan's Trade Deficit Narrowed to ¥537 Billion in September as Chip Exports Jumped

Japan ran a trade deficit of ¥536.6 billion in September, the Ministry of Finance said on Wednesday 21 October. That is half the ¥1.11 trillion gap recorded in August, but almost twice the ¥277.7 billion shortfall of September 2025. Exports rose 16.7% from a year earlier to ¥10.97 trillion, while imports climbed 18.9% to ¥11.51 trillion.

Two forces sit under those totals. Semiconductors and chip-making machinery drove exports, with shipments of integrated circuits up 55.5% in value. On the other side of the ledger, Japan paid 51.1% more for crude oil than a year earlier, though it bought only 3.1% more of it by volume. Higher fuel prices, measured in a weak yen, are doing most of the damage to the balance.

The yen barely moved. USD/JPY traded near 158.28 in the hour before the 08:50 Tokyo release (23:50 UTC on Tuesday), touched 158.39 shortly afterwards and was back near 158.26 at 03:10 UTC. Trade data rarely shift the currency on the day, but a run of deficits matters over months, because it means more yen being sold to pay for imports.

What the Ministry of Finance reported

The monthly release counts goods as they leave or enter Japanese ports. Exports are valued free on board and imports include insurance and freight, which is one reason Japan's import bill tends to look heavier than its export earnings when shipping and fuel costs are high. These are provisional figures, and the ministry revises them a month later.

September's numbers were strong on both sides. Export value grew for the month by 16.7%, a little slower than August's 19.3%. Import growth eased more sharply, to 18.9% from 28.0%, which explains why the gap halved. Seasonal factors flatter the comparison, so the ministry's seasonally adjusted series is a useful check. On that basis exports dipped 1.1% from August to ¥10.76 trillion and imports fell 1.9% to ¥11.46 trillion, leaving a deficit of ¥704.0 billion, slightly smaller than August's ¥801.1 billion.

Over the first half of Japan's fiscal year, April to September, the shortfall reached ¥2.82 trillion, 98.8% larger than in the same months of 2025. Exports for the half rose 18.4% to ¥63.46 trillion and imports 20.4% to ¥66.28 trillion. In the July to September quarter alone the deficit was ¥2.29 trillion, against ¥525 billion in April to June.

Chips and cars carried exports

Electronics led the gains. Exports in the semiconductors category rose 49.4% to ¥933.7 billion, and integrated circuits alone reached ¥734.4 billion. Semiconductor manufacturing equipment grew 43.9% to ¥553.3 billion. Together those lines added more than five percentage points to the month's 16.7% export growth.

Car shipments told a different story about volume and value. Japan exported 446,125 passenger cars in September, only 0.2% more than a year earlier, yet their value rose 16.5% to ¥1.54 trillion. Part of that gap reflects the weaker yen, which raises the yen value of each car sold abroad, and part reflects the mix of models shipped.

By destination, sales to the United States climbed 22.9% to ¥1.96 trillion, helped by a 30.5% rise in the value of cars sent there. Exports to Asia grew 17.5%, with Taiwan up 37.8%, South Korea 35.5% and Singapore 53.9%, all big buyers of chip-related goods. Shipments to China were softer, up 8.6%, and exports to the European Union rose 10.5%.

Source: Ministry of Finance, Trade Statistics of Japan, September 2026 (provisional), exports and imports by principal commodity.

Fuel costs drove the import bill

Mineral fuels made up a fifth of everything Japan bought in September. Their value rose 39.4% to ¥2.35 trillion and on its own added 6.9 percentage points to the 18.9% rise in total imports. Crude oil cost ¥1.11 trillion, liquefied natural gas ¥590.6 billion and coal ¥336.7 billion.

Volumes show this was a price shock rather than a buying spree. Crude imports rose just 3.1% in quantity, and LNG volumes fell 7.3% even as the bill for them grew 39.2%. Oil has been expensive for weeks: Brent crude futures traded near $110 a barrel early on Wednesday, and US crude close to $99. Every dollar paid for fuel also costs more yen when USD/JPY sits near 158, so the two effects compound.

Technology imports grew quickly as well. Purchases of computers rose 42.0% and integrated circuits 61.4%, a reminder that Asia's chip supply chain runs in both directions. Imports from the United States jumped 44.8%, which cut Japan's bilateral surplus with America by 23.4% to ¥392.8 billion. The deficit with China widened to ¥1.03 trillion.

What it means for the yen and the Bank of Japan

For the currency, the trade balance is a slow-moving pressure, not a trigger. Importers must sell yen to buy dollars for oil and gas, and a ¥2.8 trillion half-year shortfall adds steady demand for dollars. Japan still earns a large income from its investments abroad, so the trade gap does not tell the whole story of money flowing in and out, but it helps explain why the yen has struggled to recover even after rate rises at home.

The Bank of Japan raised its policy rate to 1.25% on 18 September and meets again on 30 October. A weaker yen pushes up import prices, and this report shows how much of that is reaching the country through energy. That gives the bank a reason to keep its tightening bias. Against that, the wide gap with US rates still favours the dollar: the US Treasury put the 10-year yield at 5.12% on Tuesday, and the Federal Reserve decides on 28 October, two days before the Bank of Japan.

USD/JPY has traded in a tight band between about 157.40 and 158.95 since 5 October, and closed Tuesday near 158.28 on our daily candles. Today's figures do little to change that. A sustained break needs a push from one of the two central banks, or from a move in oil large enough to change the import bill again.

What traders can take from it

Japanese trade data are best used as background for yen trades rather than as a short-term signal. These points can help.

• Watch the seasonally adjusted balance as well as the headline. In September it showed a deficit of ¥704 billion, a steadier guide than the unadjusted figure.
• Track oil when you trade the yen. Japan buys most of its energy abroad, so higher crude prices tend to widen the deficit and weigh on the currency.
• Separate price from volume. Crude volumes rose 3.1% while the bill rose 51.1%, so a fall in oil could shrink the deficit quickly.
• Mark 30 October in your calendar. The Bank of Japan's decision, two days after the Fed, is the next real test for USD/JPY.
• Respect the range. USD/JPY has held between about 157.40 and 158.95 since 5 October, and fading the edges has worked better than chasing breakouts.

For today's levels, see our USD/JPY analysis. Every central bank date is on the economic calendar, and you can convert yen amounts with the currency converter. Size each trade with the position size calculator.

Frequently asked

Sources: Ministry of Finance, Japan: Value of Exports and Imports, September 2026 (Provisional) · Ministry of Finance, Japan: Exports and Imports, April to September 2026 (Provisional) · Ministry of Finance, Japan: Seasonally adjusted values, September 2026 · Bank of Japan: Monetary policy releases · US Treasury: Daily Treasury par yield curve rates