Korea Q3 2026 GDP Preview: Oct 27 Release and the Numbers to Compare
By the Haesul Global economy desk (AI-assisted). Information as of October 17, 2026 (KST); the BOK release calendar was re-checked on Oct 17. This post does not predict the Q3 figure.
Quick answer: The Bank of Korea (BOK) will publish its advance estimate of real GDP for Q3 2026 on Tuesday, October 27, at 8:00 a.m. KST. The baseline: real GDP grew 0.6% quarter-on-quarter and 3.7% year-on-year in Q2, after 1.8% q/q (3.8% y/y) in Q1. The revised (preliminary) Q3 figure follows on December 9.
Korea’s growth has drawn global attention this year as AI-driven chip demand lifted exports. Here is the official calendar, the prior-quarter numbers from the BOK, and the forecasts already on the table, labeled as forecasts.
1) Release schedule (BOK)
| Date (KST) | Release |
|---|---|
| Oct 21, 06:00 | September producer price index (preliminary) |
| Oct 27, 06:00 | October consumer sentiment survey |
| Oct 27, 08:00 | Q3 2026 real GDP (advance estimate) |
| Oct 29, 06:00 | October business survey and economic sentiment index |
| Dec 9, 08:00 | Q3 2026 national income (preliminary) |
Source: BOK statistics release calendar (re-checked Oct 17, 2026). The BOK notes that dates and times are when media may report the data and may change.
For reference, the BOK released Q1 advance GDP on Apr 23 and Q2 advance GDP on Jul 23, with preliminary figures on Jun 9 and Sep 8.
2) The baseline: Q1 and Q2 2026 (BOK)
| Measure | Q1 2026 (preliminary, Jun 9) | Q2 2026 (preliminary, Sep 8) |
|---|---|---|
| Real GDP, q/q | +1.8% | +0.6% |
| Real GDP, y/y | +3.8% | +3.7% |
| Nominal GDP, q/q | +10.5% | +9.2% |
| Real GNI, q/q | +9.2% | +3.1% |
| Real GNI, y/y | +13.2% | +15.6% |
The Q2 real GDP figures were the same in the advance estimate (Jul 23) and the preliminary estimate (Sep 8): 0.6% q/q and 3.7% y/y.
Q2 by component (advance estimate, Jul 23, q/q), per the KDI Economic Information Center’s summary of the BOK release: private consumption +0.4%, government consumption +0.2%, construction investment −0.2%, facilities investment +0.2%, intellectual property investment +3.3%, exports +1.4% (led by semiconductors), imports +0.8%. These are advance-estimate components and may have been revised in the September preliminary release.
How to read it: “q/q” compares with the previous quarter; “y/y” compares with the same quarter a year earlier.
3) Forecasts already published (labeled)
These are annual 2026 forecasts, not Q3 estimates:
| Forecaster | 2026 Korea growth forecast | Date |
|---|---|---|
| IMF (World Economic Outlook) | 3.3% (up from 2.6% in July) | Oct 13, 2026 |
| AMRO (ASEAN+3 Macroeconomic Research Office) | 3.3% (from 3.1%) | Early October, as reported by Yonhap |
| OECD | 3.7% (from 2.6%) | September, as reported by Yonhap |
The IMF figure is confirmed by Korea’s Ministry of Finance and Economy, which also gives the IMF’s 2027 forecast of 2.8%. AMRO and OECD figures are as reported by Yonhap; we did not open their reports.
Context for global readers: Yonhap reports Korea’s September exports rose 83.5% from a year earlier to a record $120.9 billion, driven by chips. The Bank of Korea’s Monetary Policy Board meets on October 22 to decide its base rate (currently 3.00%, per Yonhap), five days before the GDP release. Our Korean-language preview of that meeting: 10월 금통위 기준금리 전망 (haesul.com).
FAQ
What’s the difference between “advance” and “preliminary”?
The advance estimate (속보) is the BOK’s first estimate after the quarter ends; the preliminary estimate (잠정) comes later with more data and can differ. For Q3, they are Oct 27 and Dec 9.
Where will the numbers appear?
In the BOK’s press release on Oct 27 at 8:00 KST and on its statistics system (ECOS).
Does this post forecast Q3?
No. It only lists the official schedule, past figures and other organizations’ published annual forecasts.
Korean-language version: 3분기 경제성장률 10월 27일 발표 (Naver blog).
This article summarizes official statistics and published forecasts for information only. It is not investment advice.
Sources
- Bank of Korea, monthly statistics release calendar, October 2026 (checked Oct 17, 2026) https://www.bok.or.kr/portal/stats/statsPublictSchdul/listCldr.do?date=2026-10&menuNo=200775
- Bank of Korea, “2026년 2/4분기 국민소득(잠정)” (Sep 8, 2026; checked Oct 16, 2026) https://www.bok.or.kr/portal/bbs/B0000501/view.do?depth=201264&menuNo=201264&nttId=11064532&oldMenuNo=201150&programType=newsData&relate=Y
- Bank of Korea, “2026년 1/4분기 국민소득(잠정)” (Jun 9, 2026; checked Oct 16, 2026) https://www.bok.or.kr/portal/bbs/B0000501/view.do?depth=201264&menuNo=201264&nttId=10098384&programType=newsData&relate=Y
- Bank of Korea, “2026년 2/4분기 실질 국내총생산(속보)” (Jul 23, 2026; checked Oct 16, 2026) https://www.bok.or.kr/portal/bbs/B0000501/view.do?menuNo=201264&nttId=11063107
- KDI Economic Information Center, summary of the Q2 advance GDP release (checked Oct 16, 2026) https://eiec.kdi.re.kr/policy/materialView.do?num=284616
- Ministry of Finance and Economy, “Korea’s 2026 Growth Forecast Raised to 3.3%” (Oct 14, 2026; checked Oct 16, 2026) https://english.mofe.go.kr/gn/selectTbGraphicNewsDtl.do?boardCd=G0001&seq=4350
- IMF, World Economic Outlook, October 2026 (checked Oct 16, 2026) https://www.imf.org/en/publications/weo/issues/2026/10/13/world-economic-outlook-october-2026
- Yonhap, “IMF raises S. Korea’s growth forecast to 3.3 pct amid chip supercycle” (Oct 13, 2026; re-checked Oct 17, 2026) https://en.yna.co.kr/view/AEN20261012006600320
- Yonhap (Korean), “[다음주 경제] 기준금리 3연속 인상할까…생산자 물가도 발표” (Oct 17, 2026; checked Oct 17, 2026) https://www.yna.co.kr/view/AKR20261017011700002
- Bank of Korea, Monetary Policy Board meeting schedule (checked Oct 17, 2026) https://www.bok.or.kr/portal/main/contents.do?menuNo=200755
