Thailand's planning agency has now put a number on the country's 2026 current account four times, and each time it printed the previous number in the column beside it. Read off Table 3 of four consecutive quarterly press releases from the Office of the National Economic and Social Development Council, the path runs +$14.0bn on 17 November 2025, +$14.5bn on 16 February 2026, +$6.2bn on 18 May, and −$7.4bn — a deficit worth 1.2 per cent of GDP — on 17 August. That is a $21.4bn reversal in nine months and a change of sign in two revisions. None of it is concealed: the August release states in prose that “the current account balance is expected to record a deficit equivalent to 1.2 percent of GDP,” and its table sets the new figures against the May ones line by line. What the same eleven-page document does not contain is a paragraph on imports.
The reversal sits entirely in one line. NESDC's forecast goods trade balance went +$20.1bn in November, unchanged at +$20.1bn in February, +$11.2bn in May and −$3.7bn in August, a $23.8bn move from the February vintage — larger than the current-account swing itself, because everything that is not goods travelled the other way. Services, income and transfers, taken together as the residual between the two lines, improved at every single round: −$6.1bn, −$5.6bn, −$5.0bn, −$3.7bn. And inside goods the story is not a collapse in exports. NESDC raised its 2026 export-value forecast by $44.1bn between February and August, from $341.8bn to $385.9bn, with forecast growth climbing −0.3% to 2.0% to 9.6% to 15.1%. It raised imports by $67.9bn over the same two revisions, from $321.7bn to $389.6bn, growth going 0.7% to 3.2% to 14.2% to 25.5%. Imports were marked up harder than exports at every round.
The August document then explains, at length, why prices are falling. It cut the 2026 GDP deflator forecast from 2.3–3.3% to 1.5–2.0% and headline CPI from 2.0–3.0% to 1.5–2.0%, which is what pulls nominal GDP down from ฿19,882.4bn to ฿19,711.6bn ($611.8bn to $597.3bn) in a release that simultaneously raises real growth. The release attributes the cut plainly, saying private consumption was revised up “in line with a downward revision of energy price assumptions, which in turn led to a downward revision of the inflation projection.” But the import revision is not a price revision. Import-value growth was marked up 11.3 percentage points, from 14.2% to 25.5%; import volume growth was marked up 9.6 points, from 8.4% to 18.0%. Roughly 85 per cent of the upgrade is real goods crossing the border, in the same document that lowers the assumed cost of the energy in them.
The out-turn underneath the forecast is where the numbers get their size. In the second quarter Thailand imported $111.155bn of goods, up 42.3 per cent year on year — “accelerating from 33.2 percent in the previous quarter and marking the highest growth in 20 quarters,” in NESDC's own words — against exports of $99.079bn, up 17.6 per cent. That produced a quarterly goods deficit of $12.1bn (฿392.6bn) and a current-account deficit of $17.7bn, which the release calls “the first deficit in eight quarters.” Across the first half, exports of $194.175bn grew 17.6 per cent and imports of $206.554bn grew 38.0 per cent. Both the table and the text draw on the same underlying series; footnote 3 on every table states that “Export and import figures are based on the Bank of Thailand's data, which follows the Balance of Payment system.”
That is what makes the full-year goods forecast the number the agency owes an answer on. A 2026 trade balance of −$3.7bn, given first-half goods flows the release itself prints, requires second-half imports of about $183.0bn against the first half's $206.6bn: a fall of 11.4 per cent in level terms, with year-on-year import growth decelerating from 38.0 per cent to roughly 13.9 per cent to land the full-year headline of 25.5 per cent. Something in the second half has to stop importing, and the outlook section does not say what. Its list of the key components supporting growth runs 1. household consumption, 2. investment, 3. exports. There is no fourth.
The current-account half of that arithmetic is less dramatic than it looks, and it is worth saying so. Thailand ran a current-account surplus of $3.2bn in the first quarter, per the May release, and a deficit of $17.7bn in the second, per the August one; the −$14.5bn first-half total is this publication's arithmetic across two vintages, and NESDC prints no half-year current account anywhere. A full-year −$7.4bn therefore implies +$7.1bn in the second half. But the goods half of that implied figure, +$8.7bn, is slightly below the +$9.5bn Thailand actually recorded in the second half of 2025, and the non-goods half is roughly $4.3bn better than the year-earlier −$5.9bn — close to the tourism-receipts upgrade the August release states in prose, from ฿1.49tn to ฿1.65tn, worth about $4.85bn at the roughly 33 baht to the dollar implied by the table's own two GDP lines. The second-half current account is not the heroic assumption. The second-half import level is.
Two smaller inconsistencies sit in the same release. NESDC raised the 2026 growth range from 1.5–2.5% to 2.0–2.5% — the ceiling did not move, the floor rose half a point, and the stated midpoint went from 2.0% to 2.2% — in a report whose own Table 2 shows second-quarter GDP up 1.9 per cent year on year and down 0.2 per cent seasonally adjusted on the previous quarter. The economy contracted in the quarter whose report lifted the year. And the agency misquotes itself on tourism: the August release describes receipts as “revised upward from 1.51 trillion Baht in the previous forecast,” while the May release it is referring to says ฿1.49tn. The full path is ฿1.65tn in February, ฿1.49tn in May, ฿1.65tn in August — an upgrade that restores a number the agency had cut three months earlier, described against a third figure that appears in neither table.
For context on what a 2026 deficit would mean: Thailand's last annual current-account deficit was 2022, at −$17.0bn on the World Bank's series, and the first half of this year alone is already most of the way to that figure. The vintage problem cuts backwards as well as forwards. Thailand's 2025 current-account “actual” has itself moved three times across the four tables — $17.7bn in February, $15.9bn in May, $17.4bn in August — because footnote 3 makes these Bank of Thailand balance-of-payments data, which revise on their own cycle rather than the planning agency's. That is a reason to name a vintage whenever quoting a Thai external number, not evidence of anything untoward. The World Bank, for its part, still carries 2025 at $15.94bn. The next column goes into Table 3 in November.