Will the United States’ general government net lending/borrowing balance for 2026 be above -8.5% of GDP?

- [2026-10-14] I could not read the October 2026 IMF Fiscal Monitor or WEO database directly (imf.org returned 403), so the IMF's own October 2026 US figure is unconfirmed. One secondary site, internationalinvestment.biz, says the IMF now projects a US general government deficit of 8.5% of GDP in 2026. It gives 7.1% for 2025, which conflicts with the IMF's 6.8% figure in April. I treat it as unverified. If it is right, the October vintage sits exactly at the strike. https://internationalinvestment.biz/en/business/8942-imf-budget-deficits-to-reach-their-highest-levels-since-the-pandemic.html - [2026-04-01] The IMF Article IV press release gave the US general government balance as -7.9% in 2024 and -6.8% in 2025. It projected -7.5% for 2026 and -7.3% for 2027. It expected the deficit to stay in the 7–7½% range. https://www.imf.org/en/news/articles/2026/04/01/pr-26102-usa-imf-executive-board-concludes-2026-article-iv-consult - [2026-04] The April 2026 Fiscal Monitor said the US runs a general government deficit of 7–8% of GDP, with no consolidation plan. It put the 2025 deficit at 6.8%, with interest at 4.3% of GDP. https://www.imf.org/-/media/files/publications/fiscal-monitor/2026/april/english/text.pdf - [2026-10-16] The Treasury reported a federal FY2026 deficit of $1.992T, up from $1.775T in FY2025. Receipts were $5.403T and outlays $7.396T. A Treasury official put the deficit at about 6.2% of GDP, against 5.8% in FY2025. The rise came partly from $145B of tariff refunds after a Supreme Court ruling. Net tariff revenue fell 11%. https://www.investing.com/news/economic-indicators/us-fiscal-2026-budget-deficit-rises-to-199-trillion-largest-in-5-years-4954709 - [2026-10-08] CBO's September Monthly Budget Review put the FY2026 federal deficit at about $2.0T, or 6.2% of GDP. That is $140B above CBO's February baseline of $1.9T (5.8% of GDP). https://www.americanactionforum.org/insight/cbo-fy-2026-budget-deficit-totaled-2-trillion/ - [2026-08] CBO's July review had projected a $2.1T FY2026 deficit, $200B above its February baseline. CBO said tariff and customs receipts for 2026 would be about $250B below earlier projections. https://thehill.com/business/6022755-cbo-fiscal-2026-deficit-200-billion-more/ - [2026-10-13] The October 2026 WEO was released in Bangkok. US growth is projected at 2.3% in 2026 and 2027. The IMF warned of rising debt and higher borrowing costs. The IMF data portal lists an October 2026 WEO dataset with fiscal indicators. https://data.imf.org/en/datasets/IMF.RES:WEO - [2026-10-14] The IMF released the Fiscal Monitor at the Annual Meetings and warned that fiscal risks are rising. Search snippets did not give a US-specific number. https://mediacenter.imf.org/news/imf---fiscal-monitor-report-annual-meetings--2026/s/1b05cec6-cde8-4b75-80ec-2b29f9fb5d19 - [2026-10-16] Federal net interest was above $1T in FY2026, and gross debt was above $40T. Reuters reported debt-service outlays of $1.36T, up 12%. https://www.cnbc.com/2026/10/16/us-budget-deficit-2026.html - Context: the question resolves on the April 2027 WEO vintage, expected around mid-April 2027, before the 2027-04-20 close. The October 2026 WEO is the latest IMF vintage and the best guide to it. BOTTOM LINE: The federal outturn (about 6.2% of GDP, slightly worse than CBO's February baseline) points to an IMF general government deficit of roughly 7.5–8%, but the IMF's April figure was -7.5%. The only reported October IMF figure is -8.5% for 2026, which would be exactly at the strike and is not confirmed by a primary source. The question therefore depends on the exact October WEO value and any revision by April 2027. NOT FOUND: The IMF's October 2026 WEO/Fiscal Monitor US 2026 general government net lending/borrowing value, from a primary source. I also did not find the April 2027 WEO or any Kalshi sibling-strike data.

- [2026-10-14] A secondary outlet (internationalinvestment.biz, fetched in full) reports that the October 2026 IMF forecast puts the US general government deficit at 8.5% of GDP in 2026, up from 7.1% in 2025. It does not link the IMF table. I could not check the figure against an IMF primary source. The "7.1%" for 2025 differs from the April figure of 6.8%. The Oct figure is therefore either a revised level or an unreliable rounding. If the IMF value is exactly -8.5, the question resolves No, because the rule says "above -8.5". https://internationalinvestment.biz/en/business/8942-imf-budget-deficits-to-reach-their-highest-levels-since-the-pandemic.html - [2026-04] The IMF April 2026 WEO text says the US general government balance deteriorates by 0.7pp in 2026 to about 7½% of GDP. It attributes this to OBBBA, partly offset by tariff revenue. https://www.imf.org/-/media/files/publications/weo/2026/april/english/text.pdf - [2026-04] The April 2026 Fiscal Monitor table has the US general government balance at -7.9 (2024), -6.8 (2025), -7.5 (2026) and -7.4 (2027). It then runs -7.6, -7.5, -7.5, -7.4 for 2028–31. The text says the deficit is "7 percent to 8 percent" of GDP. https://www.imf.org/-/media/files/publications/fiscal-monitor/2026/april/english/text.pdf - [2026-04-01] The IMF Article IV press release shows the general government fiscal balance at -7.5 for 2026. It expects the deficit to stay in the 7–7½% range. https://www.imf.org/en/news/articles/2026/04/01/pr-26102-usa-imf-executive-board-concludes-2026-article-iv-consult - [2026-02-25] The Article IV mission concluding statement says the deficit is expected to stay in the 7–8% range. https://www.imf.org/en/news/articles/2026/02/25/cs-02252026-united-states-of-america-staff-concluding-statement-of-the-2026-article-iv-mission - [2026-10-17] The FY2026 federal deficit came in at $1.992T, about 6% of GDP, against $1.775T in FY2025. Revenue was $5.403T and spending $7.396T. The CBO estimates 6.2% of GDP, against its February projection of 5.8%. The outcome was about $140B worse than CBO's baseline. https://www.americanactionforum.org/insight/cbo-fy-2026-budget-deficit-totaled-2-trillion/ - [2026-10-16] Net customs receipts were weak in September 2026 because refunds absorbed about 77% of gross receipts. Interest costs drove about two-thirds of the rise in the deficit. https://investinglive.com/news/us-fiscal-2026-budget-deficit-was-the-largest-in-five-years - [2026-10-18] Reference class: the IMF's general government deficit for the US has run well above the federal figure. The gap is about 1.5–2pp of GDP, owing to state and local government, and the IMF's accrual and other adjustments. Examples: 2025 was 6.8% general government against a 5.9% federal fiscal-year deficit, per the IMF. The IMF's own outcomes were -7.9 for 2024 and -14.1 for 2020. An overshoot of the April WEO projection by about 1pp would be unusual outside crisis years. The October revision, if the 8.5% figure is real, is a roughly 1pp upward revision within six months. I did not find a systematic historical error record in the sources I read. - [2026-10-18] IMF datamapper API (GGXCNL_NGDP) is live with Oct 2026 data. The US row was cut off in my fetch, so I could not read it. Its world aggregate for 2026 is -5.5, against about -5.0 to -5.1 in the April Fiscal Monitor. That is consistent with an upward deficit revision, but it is not specific to the US. https://www.imf.org/external/datamapper/api/v1/GGXCNL_NGDP/USA - [2026-10-13] The October 2026 WEO ("Resilience Under Strain, Urgent Choices") and the Fiscal Monitor ("Taxing Better to Boost Growth", 14 Oct) are both published. The market resolves on the April 2027 WEO database, which is a later vintage. The April 2027 value could differ from October's, by revision or by BEA/GDP data. https://www.imf.org/en/publications/weo - [2026-02-11] CBO's February 2026 baseline projected a 5.8% of GDP federal deficit for FY2026. The outturn was about 0.4pp worse, per the AAF/CBO item above. https://www.cbo.gov/publication/62105 BOTTOM LINE: IMF projections through April 2026 were about -7.5%, a comfortable "Yes". A single secondary report says the October 2026 WEO moved the figure to -8.5%, which sits exactly at the threshold, and the "above" wording makes an exact -8.5 a "No". The outcome depends on the October value, which I could not confirm from an IMF primary source, and on any revision before April 2027. NOT FOUND: The primary IMF October 2026 WEO/Fiscal Monitor US 2026 general government net lending/borrowing value (the IMF pages returned 403 or truncated data). I also did not find a quantified track record of IMF US deficit forecast errors, and no other markets on this item.

YES means: the IMF's initial April 2027 WEO database value for US general government net lending/borrowing in 2026 is less negative than -8.5% of GDP (for example -8.4% or -7.5%). A value of exactly -8.5 resolves No. - [2026-10-18] The IMF DataMapper (GGXCNL_NGDP, October 2026 vintage) loaded, but the US row was in the truncated middle of the response, so I could not read it. Two regional rows were readable. Western Hemisphere is -6.3 for 2025 and -7.5 for 2026, and the world is -5.5 for 2026. The Western Hemisphere's 1.2pp widening is roughly consistent with a US widening of about 1.2–1.4pp. That is the pace the secondary 8.5% report implies, so it does not help YES. https://www.imf.org/external/datamapper/api/v1/GGXCNL_NGDP/USA - [2026-10-18] The only October IMF US number is a secondary report. It is a single site, it links no IMF table, and it calls the measure a "fiscal deficit". It gives 7.1% for 2025, but the IMF's own April 2026 Fiscal Monitor and Article IV give 6.8%. The 2025 mismatch suggests the site may not be reading the WEO general-government series, or may be rounding or mislabelling. It reports "8.5" as a round figure, and a true value of -8.4 or better would resolve YES. https://internationalinvestment.biz/en/business/8942-imf-budget-deficits-to-reach-their-highest-levels-since-the-pandemic.html - [2026-10-15] Press coverage of the October Fiscal Monitor and WEO in Bangkok quotes IMF officials and a Treasury counselor but gives no US deficit figure. The Treasury counselor said IMF forecasts have been "messy". The coverage does not mention an IMF jump to -8.5%, which would be a notable revision of about 1pp from April's -7.5%. If a revision that large had been headline news, I would expect to see it, and I found none. https://www.ibtimes.com/imf-called-us-reduce-spending-washington-pushed-back-3808614 - [2026-04-15] The IMF Fiscal Affairs briefing described its method as calendar-year general government and said the translation from the federal fiscal year "is not trivial". The April forecast was a deficit going "back to around 7.5 percent". The IMF's anchor is therefore a calendar-year general government path, not the federal FY outturn. Any October revision depends on calendar-2026 data, partly the BEA calendar-year national accounts, not on the September FY close. https://www.imf.org/en/news/articles/2026/04/15/tr-04152026-press-briefing-transcript-fiscal-monitor-spring-meetings-2026 - [2026-04-15] The April method gives YES a margin. April's -7.5 sits 1.0pp inside the strike. The FY2026 federal miss versus CBO's February baseline was about 0.4pp of GDP (6.2% vs 5.8%, per the earlier reports). Most of that came from one-off tariff refunds of $145B, about 0.4pp. Refunds are largely a timing and legal-settlement item. A mechanical pass-through of 0.4pp would put the US at about -7.9%, well above -8.5. https://www.imf.org/en/news/articles/2026/04/15/tr-04152026-press-briefing-transcript-fiscal-monitor-spring-meetings-2026 - [2026-04] The April WEO text attributes the 2026 widening to OBBBA, "partly offset by additional tariff revenues", with a 0.7pp deterioration to about 7½%. Tariff revenue is the swing factor. The Supreme Court ruling and refunds (per the October 16 Treasury report) cut net tariff receipts, which is the plausible driver for a revision. But the IMF's own gap is 0.7pp for the full OBBBA effect, so a further 1.0pp revision from tariffs alone would need about 1.4% of GDP of lost revenue. The Treasury data show about $145B refunds, or roughly 0.5% of GDP. That arithmetic cannot support -8.5 unless other items also moved. https://www.imf.org/-/media/files/publications/weo/2026/april/english/text.pdf - [2026-04-01] The Article IV staff table (-7.9, -6.8, -7.5, -7.3 for 2024–27) and the medium-term range of 7–7½% show IMF staff modelling US deficits as sticky and slowly changing. Staff pinned the 2025 outturn at -6.8, an improvement of about 1.1pp over 2024, driven by tariffs. The 2025 level was itself a data revision from earlier vintages. Yearly level shifts of 1pp are therefore possible in both directions, and a downward revision of the 2026 deficit by the April 2027 WEO is also possible. https://www.imf.org/en/news/articles/2026/04/01/pr-26102-usa-imf-executive-board-concludes-2026-article-iv-consult - [2026-10-16] Treasury and CBO put the FY2026 federal deficit at 6.2% of GDP, 0.1–0.4pp above their forecasts depending on the baseline used. That outturn is about 0.3pp worse than the FY2025 federal deficit of 5.8–5.9%. If the IMF's general government gap over the federal figure stays at about 1pp, the 2026 general government deficit lands near -7.5% to -8%, not -8.5%. The general government deficit for 2025 was 6.8%, so a rise to -8.5% would need state and local balances and accrual adjustments to worsen by over 1pp, which is unusual. https://www.investing.com/news/economic-indicators/us-fiscal-2026-budget-deficit-rises-to-199-trillion-largest-in-5-years-4954709 - [2026-10-18] Single most likely path to YES: the IMF's October and April 2027 US value stays in the -7.5 to -8.3 range (an extension of its April path plus a modest tariff-refund adjustment). The secondary "8.5%" report would then be a mislabel or mix-up, for instance of a different measure, year or country. Prerequisites: (1) the DataMapper US 2026 value is not -8.5 or worse. (2) The April 2027 WEO does not add a revision that widens the deficit, for example from BEA annual GDP and state-local revisions, or from new legislation. (3) A rounding result of -8.4 or better if the underlying value is near the strike. I could not confirm (1) from a primary source. BOTTOM LINE: YES rests on the IMF's April path of -7.5%, the 0.4–0.5pp arithmetic of the tariff-refund miss, and the weakness of the lone secondary source citing exactly -8.5 with a mismatched 2025 base. The Western Hemisphere aggregate widening of 1.2pp is the main evidence against, and the October US row is unverified either way. NOT FOUND: The US 2026 general government net lending/borrowing value in the October 2026 WEO/DataMapper (the response was truncated). Also not found: the October Fiscal Monitor US table, any primary IMF statement of a 8.5% US figure, the April 2027 WEO, and any sibling or other-venue market data.

YES means: the IMF's initially published April 2027 WEO figure for US general government net lending/borrowing in 2026 is strictly above -8.5% of GDP (for example -8.4 or a smaller deficit). A reading of exactly -8.5 or a larger deficit resolves NO. - [2026-10-18] The IMF DataMapper API (GGXCNL_NGDP, October 2026 vintage) was live, but the US row was cut off in my fetch. The Western Hemisphere aggregate (WHQ) was readable and includes the US, Canada and Latin America. It shows -6.3 for 2025 and -7.5 for 2026, with -6.9 for 2024 and -6.8 for 2027. The April Fiscal Monitor had the US at -7.9 for 2024 and -6.8 for 2025. My rough GDP weighting of the region (US ~79%, Canada ~6%, Latin America ~17%) reproduces both the 2024 and 2025 aggregates. The same weighting implies a US 2026 deficit of about 8.4–8.6%. That is my inference, not an IMF-published US number. It matches the secondary report of exactly -8.5 and implies a revision of about 1pp since April. https://www.imf.org/external/datamapper/api/v1/GGXCNL_NGDP/USA - [2026-10-18] The DataMapper world aggregate for 2026 is -5.5 in the October vintage, with 2025 at -5.0 and 2027 at -5.2. The 2026 figure is a visible step-up in global deficits. Advanced-economy Europe (WEQ) is -2.9 and Sudan is -3.9. The worsening is concentrated in the US and the Western Hemisphere rather than being a broad rounding artefact. https://www.imf.org/external/datamapper/api/v1/GGXCNL_NGDP/USA - [2026-10-14] I re-read the internationalinvestment.biz article in full. It names the IMF data portal as its source. It describes the measure as general government net lending/borrowing, covering central, state and local governments. It gives US 2026 at 8.5% and 2025 at 7.1%, and advanced economies at 5.2%. The article is dated 14.10.2026, the same day as the Fiscal Monitor. It has no table link. The 2025 figure of 7.1% against the April 6.8% suggests the October vintage also revised 2025 up. A level shift of this kind makes a re-estimate of the whole path plausible, not just a 2026 forecast change. https://internationalinvestment.biz/en/business/8942-imf-budget-deficits-to-reach-their-highest-levels-since-the-pandemic.html - [2026-10-14] CNBC's Oct 14 write-up of the IMF's debt warnings says the IMF expects the deficit to top 6% of GDP in fiscal 2026. That is a federal measure. The article is silent on the general government figure. The federal-to-general-government gap is therefore not narrowing. https://www.cnbc.com/2026/10/14/bond-yields-debt-deficit-treasury.html - [2026-10-16] The Treasury FY2026 outturn is already known: $1.99T, or 6.2% of GDP, with debt-service up 12% to $1.36T and $145B of tariff refunds. This is the data the IMF's April 2027 vintage will build on. Tariff refunds are a one-off revenue loss. Nothing in the pipeline points to a later improvement in the 2026 outturn. https://www.chaincatcher.com/en/article/2296930 - [2026-10-12] The October WEO raised 2026 US growth to 2.3% and global inflation to 4.7%, with higher energy costs. Stronger nominal GDP raises the denominator slightly but also raises interest costs and yields. 30-year mortgage rates were 7.4% on Oct 8 and 10-year yields sit at multi-decade highs. Higher yields push the interest bill up. This favours an unchanged or worse deficit in April 2027 rather than a reversal. https://www.cnbc.com/2026/10/12/imf-world-bank-annual-meetings-october-bangkok-asia-.html - [2026-10-16] The IMF Fiscal Monitor press briefing (Valdés, Bangkok) said fiscal risks are rising and countries with elevated debt should begin consolidating now. It carried no suggestion that US deficits are being revised down. https://mediacenter.imf.org/news/imf-fiscal-monitor-press-briefing/s/a86f20e4-944a-44d2-8453-aaac954ee802 - [2026-04-01] Resolution mechanics: the contract uses only the first-published April 2027 WEO value, to one decimal. The strike is -8.5, and the rule says "above". If the April 2027 value stays at the October vintage's -8.5, it resolves NO. A one-decimal rounding tie is the status quo and resolves NO. Any ordinary revision of ≥0.1pp toward a smaller deficit is needed for YES. Separately, the IMF's April 2026 text described the deficit as 7–8% over the medium term. The key Article IV press release was dated April 1–2, 2026. The April 2026 number (-7.5) is stale and no longer a valid guide. https://www.imf.org/en/news/articles/2026/04/01/pr-26102-usa-imf-executive-board-concludes-2026-article-iv-consult - [2026-04-02] The IMF's FY-versus-calendar mapping matters. The IMF's federal numbers in the Article IV table (-5.9 for FY2025) track the fiscal year, while the general government line is calendar-year based on BEA data. The BEA's annual NIPA revision is due in September 2027, after the April 2027 WEO. The April WEO will therefore use the current BEA vintage. Federal FY2026 outturn of 6.2% of GDP, 0.4pp worse than CBO's February baseline, feeds into that calendar-year estimate. https://www.imf.org/en/news/articles/2026/04/01/pr-26102-usa-imf-executive-board-concludes-2026-article-iv-consult BOTTOM LINE: The best evidence points to an October IMF US 2026 figure at or just beyond -8.5. A secondary source says exactly -8.5, and my regional-aggregate back-solve gives about -8.4 to -8.6. A tie resolves NO, the fiscal news since October has been negative, and the April 2027 value would need to move by at least 0.1pp toward a smaller deficit for YES. NOT FOUND: The US row of the October 2026 IMF WEO/DataMapper (the fetch truncated it and imf.org pages returned 403 or truncated data), a primary IMF statement of the US general government 2026 number, the April 2027 WEO, and any sibling Kalshi strikes.