Market Data

Effective Tariff Monitor 2025: Reported Rate Was 12.4%

The annual observed calculated-duty reading was 12.4% of covered customs value across 57 tracked families, up from 3.3% in 2024.

Across the 57 manufacturing import families MFG Calcs tracks, USITC reported $69.1B in calculated duty on $559.3B of covered customs value in 2025: an observed effective rate of 12.4%, up from 3.3% in 2024. This aggregate reflects the recorded product, origin, preference, and entry mix; it does not attribute the gap to Section 301, Section 232, or another legal action.

• Aggregate effective rate, 2025: 12.4%
• Reported calculated duty: $69.1B
• Covered customs value: $559.3B

Highest effective rates, 2025

• Steel fasteners: 35.91% effective (General line range 0%–12.5%)
• Iron and steel castings and articles: 34.54% effective (General line range 0%–8.6%)
• Aluminum semi-finished products: 32.81% effective (General line range 0%–6.5%)
• Aluminum articles: 31.11% effective (General line range 0%–6%)
• Springs, chain, and wire mesh: 30.76% effective (General line range 0%–3.9%)

Biggest absolute moves vs 2024

• Steel fasteners: +29.4 percentage points to 35.91%
• Aluminum semi-finished products: +26.7 percentage points to 32.81%
• Iron and steel castings and articles: +26.3 percentage points to 34.54%
• Springs, chain, and wire mesh: +25.9 percentage points to 30.76%
• Aluminum articles: +23.2 percentage points to 31.11%

This is the current reading; it will revise as USITC finalizes 2025 trade data and refreshes monthly. Family-level detail (statutory rate lines, per-country effective rates, and import values) lives on the Tariff Monitor pages and in the downloadable dataset. Reference statistics derived from USITC published data. Not a customs ruling. MFN-Free and Special-rate fields describe statutory line coverage only; final entry liability requires origin, date, eligibility, exclusions and other transaction facts. Calculated Duties are statistical estimates, not a cash-collections ledger. Confirm classification, origin, program eligibility, and final entry liability with a licensed customs broker.

Cite this release: MFG Calcs, "Effective Tariff Monitor 2025," MFG Calcs Data Library, 2026, https://www.mfgcalcs.com/news/effective-tariff-monitor-2025.

Statutory vs effective rates for 57 manufacturing families, with top source countries. Explore the Tariff Monitor

Published 2026-07-19.