Weekend Reading
Trade Policy Is No Longer a Side Show, It’s Driving the 2025 Macro Cycle
By SEQH Capital Research
“If you’re still watching only the Fed, you’re watching the wrong movie.”
Markets spent the summer debating whether the FOMC would cut 25 bp or 50 bp this week (they went 25 bp on 24 Sep). Meanwhile, a quieter but larger macro shock has already been baked into 2025–26 forecasts: the largest U.S. tariff increase since 1943 is now in force, and the drag is showing up everywhere, from tomato prices in Walmart to the 10-year Treasury. Below is a concise, fully-sourced guide to what actually changed this month, how big the hit is, and the three policy catalysts that will decide whether 2026 is a soft landing or a recession.
1. What Just Happened? The September Tariff Ledger
Average effective tariff rate on all U.S. imports hit 17.7 % on 6 Aug, the highest since 1934, and nothing has been rolled back since.
China: most goods now face 145 % (10 % baseline + 20 % original + 115 % “reciprocal”).
Canada & Mexico: 25–35 % on non-USMCA products; energy & potash 10 % (expires 31 Dec).
EU & Japan: 18 % trade-weighted average “reciprocal” rate; U.K. lower after side-deal.
De-minimis exemption ended 1 Sep, the $800 duty-free parcel channel is gone; e-commerce parcels now taxed at the same rates as container cargo.
Retaliation active: CAD 223 bn of U.S. exports now face foreign counter-tariffs (China, EU, Canada, Mexico); Canada withdrew most but kept 25 % on U.S. steel/aluminum/autos.
2. The Macro Hit, Numbers That Are Already in the Models
Inflation
Short-run consumer price level +1.8 % directly from tariffs; clothing & footwear +18–19 % even after substitution.
Core PCE path revised up 30–40 bp by four major banks this month; Atlanta Fed’s sticky-price CPI is re-accelerating (Aug 3.6 % y/y vs 3.3 % Jul).
Growth
Yale Budget Lab: tariffs + retaliation shave 0.5 pp from real GDP growth in both 2025 and 2026; level of GDP permanently ‑0.4 % (−125bn2024).
Tax Foundation: if all tariffs survive court challenges, GDP ‑0.8 % before any foreign retaliation; if IEEPA tariffs are struck, drag falls to ‑0.2 %.
IMF’s July forecast (last available) already cut 2025 global growth 30 bp to 3.0 % on tariff uncertainty; U.S. growth expected to slow from 3.0 % Q2 annualised to <1.5 % by Q4.
Labour Market
Payroll level 505 k lower by end-2025 under current tariff stack; unemployment rate +0.3 pp by Dec-25, +0.7 pp by Dec-26.
Sectoral twist: manufacturing output +2.1 % (non-advanced durables +3.9 %), but construction ‑3.6 %, agriculture ‑0.8 %, net job loss because non-tradable sectors are larger employers.
Fiscal
Tariff revenue = $171.7 bn in 2025 (0.56 % of GDP) , the biggest tax increase since 1993.
CBO (Jun) estimated 10-year deficit reduction of $2.5 trn, but also concluded the level of GDP would be smaller, eroding income & payroll-tax bases.
3. Three Policy Catalysts Before Year-End
USMCA Review (due 15 Oct)
Canada & Mexico have asked for clarification of auto rules-of-origin. Any administrative tweak that widens USMCA exemptions would drop the average tariff by ~2 pp, worth 15–20 bp on core PCE and 0.2 pp on GDP according to Yale’s counter-factual.IEEPA Court Decision (expected Nov)
A three-judge Appeals Court upheld a lower-court ruling that the IEEPA “reciprocal” tariffs are illegal; temporary stay expires 1 Nov. If the Supreme Court refuses emergency review, baseline 10 % and 115 % China surcharges disappear overnight, a $1.7 trn revenue loss over ten years but a 0.7 % GDP gain.EU Negotiating Window (deadline 1 Dec)
White House has threatened 50 % auto tariff unless EU agrees to voluntary export restraints on steel/aluminium. EU has prepared $65 bn retaliation list (Kentucky bourbon, Boeing parts). A deal would keep EU tariff at 25 % instead of 50 %, equivalent to 8 bp on core PCE and 0.1 pp on growth, per CEPR modelling.
4. The New Macro Trilemma
Trade protectionism, price stability, full employment, pick two.
If tariffs stay, inflation stays >3 % and Fed may have to hike into weakness (market now prices 35 % chance of a hike by Jun-26).
If courts strike IEEPA, tariff revenue disappears but growth recovers and inflation cools, Fed could cut again by Q2.
If USMCA/EU deals fail, 2026 could see GDP ‑1.7 %, unemployment >5 %, core PCE >4 %, a stagflationary recession that monetary policy cannot solve.
5. Key Data Dates for Your Diary
| Date | Indicator | Why It Matters |
|-------|-----------|----------------|
| 4 Oct | Sep payrolls | First clean read after tariff retaliation (survey week 15 Sep) |
| 10 Oct | Sep CPI | Will show passthrough of de-minimis end & apparel tariff |
| 15 Oct | USMCA review deadline | Clarity on Mexico/Canada auto tariffs |
| 30 Oct | Q3 advance GDP | Will include full quarter of 145 % China tariff |
| 1 Nov | IEEPA stay expiry | Binary event for $1.7 trn revenue / 0.7 % GDP |
| 1 Dec | EU auto tariff cliff | 25 % → 50 % unless deal struck |
Bottom Line
Trade policy, not the Fed, is now the marginal driver of U.S. macro in 2025–26. Whether your base case is recession, stagflation or soft landing, the elasticity of your forecast to three binary political decisions is larger than the elasticity to any Fed dot. Watch the court docket and the negotiating calendar as closely as you watch payrolls and PCE.