CSDDD After Omnibus I: What the New 2029 Deadline Really Means for Non-EU Companies

If you searched for the CSDDD compliance deadline any time before this year, you probably landed on July 2026. That date is no longer correct, and companies still planning around it are working from an outdated map.

The record, corrected

The Corporate Sustainability Due Diligence Directive entered into force in mid-2024, with an original transposition deadline for EU member states set for July 26, 2026, followed by a phased rollout of obligations for companies through 2027-2029.

That original schedule no longer applies. As part of the EU's broader "Omnibus I" simplification effort, the Commission, Parliament, and Council spent 2025 renegotiating both the CSDDD and its sister regulation, the Corporate Sustainability Reporting Directive. The final amending directive was published in the EU's Official Journal in late February 2026 and took legal effect on March 18, 2026. It rewrites the CSDDD's timeline, scope, and several of its core obligations.

What actually changed

Three shifts matter most for companies tracking this file:

A single compliance date, not a phase-in. The original directive rolled out obligations in three waves, starting with the largest companies in 2027. Omnibus I scraps that structure entirely in favor of one uniform date: July 26, 2029. Every in-scope company, regardless of size within the qualifying threshold, becomes subject to the same deadline at once.

A much narrower scope. The employee and revenue thresholds were raised substantially. EU-incorporated companies now need more than 5,000 employees and over €1.5 billion in worldwide turnover to fall in scope. Non-EU companies, including US multinationals, are captured if they generate more than €1.5 billion in turnover within the EU. This shrinks the universe of covered companies from roughly 13,000 under the original text to an estimated 6,000 today.

Lighter-touch obligations. The mandatory climate transition plan requirement, which would have obligated in-scope companies to adopt a Paris-aligned decarbonization plan, has been removed from the CSDDD outright (companies already subject to sustainability reporting rules still address transition plans separately). The EU-wide civil liability regime, which would have let claimants sue under a harmonized standard, has also been dropped; liability now reverts to whatever framework each member state chooses to adopt.

The revised timeline, in order

• March 18, 2026 — Omnibus I enters into force. This is current law.
• July 26, 2027 — The European Commission must publish its first set of implementation guidelines, covering due diligence processes, risk prioritization, stakeholder engagement, and model contract clauses.
• July 26, 2028 — Deadline for EU member states to transpose the directive into national law.
• July 26, 2029 — Compliance obligations apply to all in-scope companies.
• Financial years starting January 1, 2030 — First due diligence disclosures, filed through the CSRD reporting mechanism, come due.

Why non-EU companies shouldn't treat this as a free pass

A three-year runway feels comfortable, and for many companies that previously braced for a 2027 start date, it genuinely is welcome breathing room. But two details are worth sitting with.

First, the narrower scope cuts both ways. If your company drops below the new €1.5 billion EU turnover threshold, you're out of direct scope, but you're likely still a supplier or business partner to a company that remains in scope. Those companies will start pushing due diligence questionnaires and contractual requirements down their supply chains well before 2029, since they need time to map and remediate risk across vendors before their own deadline arrives.

Second, penalties under the directive can reach up to 3% of a company's net worldwide turnover, a figure applied at the group level. National transposition will determine the exact enforcement mechanics, and those details are still being written country by country. Waiting until the 2028 transposition deadline to start building due diligence infrastructure means compressing years of process design, supplier engagement, and internal governance work into a much shorter window.

The practical takeaway

Companies that already meet the revised thresholds, or expect to approach them, gain the most by treating the next eighteen months as preparation time rather than dead time: mapping supply chains against the CSDDD's six-step due diligence framework, watching for the Commission's July 2027 guidelines, and tracking how individual member states handle transposition and penalties once that process begins in 2028.

The deadline moved. The underlying pressure to get ahead of it didn't.

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