Carbon Offsetting vs Actual Reduction: What Counts in Net Zero Reporting

When SBTi published the final version of its Corporate Net-Zero Standard on 11 June 2026 one question got a definitive answer and it was the same answer the previous version gave. Carbon offsets including avoided emissions credits REDD+ credits and short lived nature based credits still cannot be counted toward progress against any Scope 1 2 or 3 reduction target. Carbon offsetting has a real defined role in a credible net zero claim but that role sits at the very end of the process neutralising a small residual once genuine reduction has already happened not as a substitute for the reduction itself. Portfolios still treating offset purchases as interchangeable with actual operational improvement are building a claim that will not survive the level of scrutiny now being applied to exactly this distinction.

This guide sets out what genuinely counts as reduction where offsetting legitimately belongs in a net zero claim and what real estate portfolios specifically need to get right.

Why offsets and reduction get confused in the first place

The confusion is understandable given how offset purchases and genuine emissions reduction can both produce the same headline effect on a company's stated carbon footprint. A tonne of emissions reduced through a retrofit and a tonne offset through a purchased credit both on the surface move a total in the same direction. The difference is what actually happened in the real world to produce that movement one represents genuine change in a portfolio's own operational footprint the other represents payment for an activity sometimes verified rigorously and sometimes not happening entirely outside the reporting company's control. Frameworks like SBTi exist precisely to stop these two very different things being reported as equivalent.

What actually counts as reduction under SBTi and equivalent frameworks

Under the Corporate Net-Zero Standard genuine reduction means actual measured decreases in Scope 1 2 and 3 emissions within a company's own operations and value chain tracked against a governed baseline using consistent methodology. This is precisely the same discipline behind a properly built net zero pathway asset level performance tracked and improved over time not a portfolio total adjusted downward through a purchase made entirely separately from the buildings themselves. FLAG near term targets covering forest land and agriculture activities are the narrow exception where certain land based removals can be included but this remains a specific limited carve out rather than a general principle.

Where offsets genuinely belong in a credible net zero claim

Offsetting has a real defined place just a considerably narrower one than many corporate claims of the last decade suggested.

Residual emissions only not a substitute for reduction

Under the current standard permanent carbon removals are used specifically to neutralise the residual emissions remaining at a company's net zero target year typically the final ten percent or less that cannot realistically be eliminated through reduction alone. The standard also introduces a voluntary recognition framework running from now until 2035 encouraging companies to take responsibility for emissions not yet cut through a ramping schedule of long lived removals starting around one percent of footprint by 2035 and rising progressively toward the net zero year.

Credit quality now matters as much as quantity

SBTi's approach now draws explicitly on the Voluntary Carbon Markets Integrity Initiative and recognises the Integrity Council for the Voluntary Carbon Market's Core Carbon Principles as the benchmark for credit quality. This matters enormously in practice since credits vary hugely in genuine integrity and a portfolio relying on lower quality unverified credits is building a claim on a foundation that increasingly will not satisfy either regulators or sophisticated investors reviewing the underlying evidence.

The claims language regulators are starting to police directly

From late 2026 the EU's Consumers Directive will effectively prohibit generic climate neutral claims based solely on offsetting and this direction is consistent with how VCMI's own claims code already requires companies to have a validated near term target and full public disclosure of every credit retired before making any climate related claim at all. The language a portfolio uses to describe its offsetting activity is no longer a marketing choice. It is increasingly a compliance one.

What this means for real estate portfolios specifically

For real estate this distinction has particular teeth. A portfolio's genuine reduction opportunity sits overwhelmingly in operational performance retrofits tenant engagement fabric improvements tracked through proper asset level emissions tracking not in a purchased credit disconnected from any specific building. Investors and lenders increasingly scrutinise exactly this distinction during due diligence asking not just what a portfolio's stated net zero progress is but how much of it reflects genuine building level improvement versus purchased offset volume a question that a governed carbon calculation process can answer directly and an ungoverned one usually cannot.

Building a net zero pathway that does not lean on offsets prematurely

The sensible approach treats offsetting as the final step in a pathway not an early substitute for the harder work of genuine reduction. This means building a carbon hotspot analysis that identifies where real measurable reduction is actually achievable across the portfolio sequencing capital toward that reduction first and reserving offsetting backed by high integrity properly disclosed credits purely for the residual that genuinely cannot be eliminated by the target date. Understanding how a governed data process works end to end is what lets a portfolio demonstrate with evidence exactly which part of its progress came from reduction and which came from offsetting a distinction that is becoming central to how net zero claims are assessed.

A test for your own net zero claims

Take your portfolio's current net zero narrative and ask three questions. Could you state precisely what percentage of your progress to date came from genuine measured operational reduction versus purchased offsets. If asked could you produce the specific credits behind any offsetting claim including their quality rating and public disclosure record. And does your current pathway plan to keep leaning on offsets or does it show a clear sequenced trajectory toward reduction first with offsetting reserved for a genuinely residual amount at the end. If any answer gives you pause your net zero claim may currently be resting on the part of the standard that is narrowing fastest.

Teams reviewing this often find it useful to review practical net zero and offsetting guides and sector specific sustainability insights and to compare approaches with peers through a partner programme where relevant. If you are weighing up tools to support this reviewing pricing and learning more about the team behind the platform is a sensible next step before your next net zero disclosure.