What is the difference between insetting and offsetting?

Insetting funds emissions-reduction or removal projects inside your own value chain — for example regenerative practices with your suppliers — so the benefit is tied to the goods you actually buy. Offsetting buys credits from projects outside your value chain on the open market. Insetting reduces your Scope 3; offsetting compensates for residual emissions.

Which counts toward Scope 3 reductions?

Insetting can reduce your reported Scope 3 emissions because it lowers the footprint of the goods and services in your value chain. Market offsets do not reduce your Scope 3 inventory — under SBTi guidance they only address residual emissions after you have cut as much as possible.

When does offsetting make more sense?

Offsetting suits emissions you cannot yet abate, suppliers you have little leverage over, or when you lack the traceability to run credible in-chain projects. High-quality removal credits can compensate for residual emissions while you build insetting capability.

Is insetting always better?

Insetting is generally preferred where you have deep supplier relationships and good data, because the climate benefit is durable, additional, and tied to your products. But it needs traceability, investment, and verification capacity. Without those, a poorly run inset can be weaker than a verified offset.

Yes, and most credible net-zero strategies do. Prioritise cutting your own and value-chain emissions through insetting and direct reduction, then use high-quality offsets or removals only for the residual that cannot yet be abated. The tool flags a blended approach when factors are mixed.

What is the Carbon Inset vs Offset Decision Tool?

Answer questions about your Scope 3 supplier relationships, traceability, and verification capability to get a weighted recommendation on whether carbon insetting inside your value chain or market offsetting better supports your net-zero strategy. For sustainability and procurement teams. It runs free in your browser on Gera Tools, with nothing uploaded.

Carbon Inset vs Offset Decision Tool

Name: Carbon Inset vs Offset Decision Tool
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

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Insetting and offsetting both touch carbon, but they sit in very different places: insetting reduces emissions inside your value chain and counts toward Scope 3, while offsetting compensates for residual emissions on the open market. This tool weighs your supplier relationships, data, and verification capacity to recommend which path — or blend — fits your situation.

How it works

The tool scores several factors, each leaning toward insetting or offsetting:

deep, direct supplier relationships   → favours insetting
strong emissions traceability/data    → favours insetting
ability to fund in-chain projects     → favours insetting
strong in-house verification capacity → favours insetting
the reverse of each                   → favours offsetting (for now)

It sums the leanings into a net score and recommends insetting, offsetting, or a blended approach when the factors are mixed.

Why the distinction between insetting and offsetting matters for reporting

The choice between insetting and offsetting is not just strategic — it has direct implications for how emissions appear in your annual sustainability or ESG report.

Scope 3 reductions are only possible through insetting and direct value-chain engagement. If your company buys regenerative agriculture credits from a farmer in your supply chain, the resulting emission reduction flows into your Scope 3 inventory and lowers your reported footprint. This is what the Science Based Targets initiative (SBTi) and the GHG Protocol require companies to demonstrate when claiming Scope 3 reductions.

Market offsets do not reduce your Scope 3. Under current SBTi guidance, voluntary carbon market credits (VCMs) purchased from projects outside your value chain cannot be counted against your Scope 3 targets. They can be reported separately as “compensation” or used to make a “net zero” claim only after you have cut as much as feasible within your value chain. Using offsets to claim Scope 3 reductions without this foundation risks greenwashing allegations.

What “leverage” over a supplier actually means

The insetting recommendation in this tool depends heavily on whether you have real leverage over suppliers. Leverage is not just about contract size. Consider:

Preferred supplier status — do you represent a significant share of their revenue?
Multi-year contracts — can you make implementation of sustainability requirements a condition of contract renewal?
Technical capability sharing — can your company provide the agricultural or operational know-how the supplier needs to change practices?
Data access agreements — can you require primary data for GHG reporting rather than relying on spend-based estimation?

Without at least two of these, “insetting” risks being a label on what is effectively a voluntary offset project with a supplier you happen to buy from.

Notes and tips

The decisive question is leverage and data. Insetting only beats a verified offset when you can actually trace the emissions, work directly with the supplier to cut them, and verify the result — otherwise the climate claim is weak. Offsetting is the honest interim answer for emissions you cannot yet abate or suppliers you cannot reach, ideally using high-quality removal credits rather than cheap avoidance credits. The tool flags a blended approach when factors point in both directions.