Adaptation · Labour & consumers
US labour share of income, year on year
Year-on-year change in the BLS nonfarm business labor share index (PRS85006173), derived metric bls_labor_share_yoy. The share of output paid to labour rather than capital.
Reason through thisThe reading
The share is falling faster than a cycle alone explains, though from a post-pandemic high; it is the one adaptation series that is not at trend.
34 readings drawn from the derived metric bls_labor_share_yoy; 38 observations in the evidence.
Derived (bls_labor_share_yoy) from: BLS productivity and costs; total factor productivity. U.S. Bureau of Labor Statistics, Productivity and Costs (PRS85006092/93, PRS85006173), Total Factor Productivity (MPU4910012).
The numbers
| as of | reading | value | record |
|---|---|---|---|
| 2026-06-30 | — | -3.4% | measured |
| 2026-03-31 | — | -3.1% | measured |
| 2025-12-31 | — | -1.3% | measured |
| 2025-09-30 | — | -0.7% | measured |
| 2025-06-30 | — | 0.1% | measured |
| 2025-03-31 | — | 1.0% | measured |
| 2024-12-31 | — | 0.7% | measured |
| 2024-09-30 | — | 0.4% | measured |
| 2024-06-30 | — | -0.1% | measured |
| 2024-03-31 | — | 0.3% | measured |
| 2023-12-31 | — | -0.7% | measured |
| 2023-09-30 | — | -2.0% | measured |
| 2023-06-30 | — | -0.8% | measured |
| 2023-03-31 | — | -2.6% | measured |
| 2022-12-31 | — | -2.7% | measured |
| 2022-09-30 | — | -2.6% | measured |
| 2022-06-30 | — | -2.9% | measured |
| 2022-03-31 | — | -1.5% | measured |
| 2021-12-31 | — | -3.1% | measured |
| 2021-09-30 | — | 0.7% | measured |
| 2021-06-30 | — | -3.6% | measured |
| 2021-03-31 | — | -1.5% | measured |
| 2020-12-31 | — | 3.2% | measured |
| 2020-09-30 | — | 1.1% | measured |
| 2020-06-30 | — | 4.0% | measured |
| 2020-03-31 | — | 0.8% | measured |
| 2019-12-31 | — | -0.5% | measured |
| 2019-09-30 | — | -0.9% | measured |
| 2019-06-30 | — | 0.6% | measured |
| 2019-03-31 | — | 1.5% | measured |
| 2018-12-31 | — | -0.1% | measured |
| 2018-09-30 | — | -0.2% | measured |
| 2018-06-30 | — | -0.5% | measured |
| 2018-03-31 | — | 0.1% | measured |
Why it matters
If AI shifts surplus from wages to capital, this is where it shows in official data. The Anthropic Institute's September 2026 scenarios put the labour share at 60% today and 45% by 2030 under extreme change, and unchanged under modest change.
What cuts against it
The index has fallen before without AI (2000s); wage lags after an inflation shock push it down mechanically; quarterly readings are revised and the 2025 peak was unusual.
How it is measured
- series
bls.prs85006173.q - derived metric
bls_labor_share_yoy(formula in the semantic layer) - source BLS productivity and costs; total factor productivity · default tier 4 · Public domain (U.S. government)
- proxy welfare · cadence quarterly · valve leak
Normal = year-on-year moves of at most 2%, the size of ordinary cyclical swings in the index; fast = 5% or worse a year, roughly the pace that takes the share from 60% to 45% by 2030 (the extreme scenario). Between is `emerging`.
Applied to metric:bls_labor_share_yoy.
Derived rows (34)
| as of | dims | value | inputs |
|---|---|---|---|
| 2026-06-30 | -3.4% | sources12 | |
| 2026-03-31 | -3.1% | sources12 | |
| 2025-12-31 | -1.3% | sources12 | |
| 2025-09-30 | -0.7% | sources12 | |
| 2025-06-30 | 0.1% | sources12 | |
| 2025-03-31 | 1.0% | sources12 | |
| 2024-12-31 | 0.7% | sources12 | |
| 2024-09-30 | 0.4% | sources12 | |
| 2024-06-30 | -0.1% | sources12 | |
| 2024-03-31 | 0.3% | sources12 | |
| 2023-12-31 | -0.7% | sources12 | |
| 2023-09-30 | -2.0% | sources12 | |
| 2023-06-30 | -0.8% | sources12 | |
| 2023-03-31 | -2.6% | sources12 | |
| 2022-12-31 | -2.7% | sources12 | |
| 2022-09-30 | -2.6% | sources12 | |
| 2022-06-30 | -2.9% | sources12 | |
| 2022-03-31 | -1.5% | sources12 | |
| 2021-12-31 | -3.1% | sources12 | |
| 2021-09-30 | 0.7% | sources12 | |
| 2021-06-30 | -3.6% | sources12 | |
| 2021-03-31 | -1.5% | sources12 | |
| 2020-12-31 | 3.2% | sources12 | |
| 2020-09-30 | 1.1% | sources12 | |
| 2020-06-30 | 4.0% | sources12 | |
| 2020-03-31 | 0.8% | sources12 | |
| 2019-12-31 | -0.5% | sources12 | |
| 2019-09-30 | -0.9% | sources12 | |
| 2019-06-30 | 0.6% | sources12 | |
| 2019-03-31 | 1.5% | sources12 | |
| 2018-12-31 | -0.1% | sources12 | |
| 2018-09-30 | -0.2% | sources12 | |
| 2018-06-30 | -0.5% | sources12 | |
| 2018-03-31 | 0.1% | sources12 |
Latest readings
Why this status, and its history
BLS nonfarm business labor share index (PRS85006173), year on year: Sep 2025 -0.7%, Dec 2025 -1.3%, Mar 2026 -3.1%, Jun 2026 -3.4%. Below the normal band floor (-2%) but above the fast band (-5%). The index also fell this fast in 2021-23 after the inflation shock, so the reading is `emerging`, not a break. Initial seed.
- 2026-09-10unmeasured to emergingconf — → 65 · initial seed (model-drafted)
BLS nonfarm business labor share index (PRS85006173), year on year: Sep 2025 -0.7%, Dec 2025 -1.3%, Mar 2026 -3.1%, Jun 2026 -3.4%. Below the normal band floor (-2%) but above the fast band (-5%). The index also fell this fast in 2021-23 after the inflation shock, so the reading is `emerging`, not a break. Initial seed.
Why this confidence
Rests on 38 observations from BLS productivity and costs; total factor productivity; best evidence tier 4, grade A; current.
Confidence is independent of status: 90–95 multiple strong independent sources; 70–89 good evidence, some ambiguity; 50–69 mixed or hard to operationalise; 0–49 limited or vague evidence.
Predictions that lean on this
- Too early to tell
- Too early to tell
- HappeningLabour's share of income falls as AI takes on more tasks, even as wages rise. · This site, extending Pascual Restrepo
- Not happeningWorkers stop sharing the gains · This site
- Too early to tellThe economists' scenarios only pull apart after 2027. · Korinek et al. (The Anthropic Institute, WP 2026-02)
More predictions that lean on this
- Too early to tellExtreme case: growth soars and workers' share of income falls sharply. · Korinek et al. (The Anthropic Institute, WP 2026-02)
- Too early to tellModest case: AI adds under half a point a year to growth by 2030. · Korinek, Jones, Sacher, Cotter and McCrory (The Anthropic Institute, WP 2026-02)