The Verra AFOLU Pooled Buffer Account

Updated 2026-11-02 · 3 min read · By the akar.earth specialist team

The Verra buffer pool explained: how the AFOLU pooled buffer account covers reversals, how deposits and cancellations work, and what it means in Indonesia.

The Verra AFOLU pooled buffer account is a shared reserve of credits that insures VCS land-use projects against reversals. Every agriculture, forestry and other land use project sets aside part of its verified credits in the pool, and Verra cancels those buffer credits when carbon is lost from any project, so that credits already sold stay backed by stored carbon.

The buffer is the core of how the Verra VCS Program deals with permanence. Read permanence and reversals for the wider concept.

Why a pooled buffer

Forests burn, get logged or die from drought. When that happens after credits have been issued and sold, the atmosphere loses the benefit. Verra could make each project responsible for its own losses, but a single large fire could bankrupt a project. Pooling spreads risk across many projects, regions and project types, like insurance.

Buffer credits cannot be sold or retired by the project. They exist only to be cancelled against losses.

How the buffer works step by step

1. Risk assessment. At validation and every verification, the project completes the AFOLU non-permanence risk tool. The result is a buffer percentage.
2. Deposit. At each issuance, Verra deposits that percentage of the verified reductions or removals into the pooled buffer account. The rest go to the project’s registry account.
3. Monitoring. The project keeps monitoring its carbon stocks and reports any losses at verification or through a loss event report.
4. Reversal. If carbon stock falls below what has been credited, Verra cancels buffer credits equal to the loss.
5. Avoidable or unavoidable. For unavoidable losses, such as natural disasters, the buffer absorbs the loss. For avoidable losses, such as deciding to log, the project must compensate by replacing credits.
6. Recovery. A project with a net loss cannot get new credits until it has recovered the lost carbon stock, as shown at later verification.

Check the current VCS Standard for detailed rules on loss event reporting, compensation and any release of buffer credits. Verra issued VCS Standard v5.0 on 16 December 2025, and v4.7 remains active until 1 July 2027.

Related mechanisms

• Long-term average for harvested systems. In ARR or IFM projects with harvesting, credits are capped at the long-term average carbon stock, so routine harvest is not treated as a reversal.
• JNR buffer. Jurisdictional programmes under the JNR framework use their own non-permanence risk tool and buffer arrangements.
• Other programmes. Gold Standard, Plan Vivo and ART TREES each run their own buffer or reserve rules.

Indonesia and Southeast Asia

Indonesian projects matter to the pool. Southeast Asia issued 129 million nature-based credits under VCS and Gold Standard to April 2025, and Indonesia accounted for 59.3% of that issuance. Much of it came from REDD+ and peat projects, where fire is the main natural risk.

For Indonesian projects:

• Fire seasons test the pool. Severe fire years in Sumatra and Kalimantan can trigger loss reports across several projects at once. Strong fire prevention reduces both buffer percentage and loss risk.
• Tenure conflicts can cause avoidable losses. Encroachment that the project could have prevented may be treated as avoidable. Clear tenure and community agreements protect the project.
• Monitoring must be continuous. Satellite fire and deforestation alerts between verifications let a project respond quickly and document events. See deforestation alerts.

What a loss event means for a project

A loss event triggers work and cost. The project must map the affected area, estimate lost carbon with field and satellite data, and report it. Buffer credits are cancelled. New issuance stops until the loss is made good. For an avoidable loss, the project must also replace credits. Good fire and encroachment monitoring is cheaper than a loss event.

Keep monitoring records that show the date, cause and extent of any disturbance, so that it can be classified correctly as avoidable or unavoidable.

Questions buyers ask

Buyers increasingly ask whether buffer pools are big enough to cover long-term risk, especially under climate change. Verra has reviewed its buffer approach over time. Buyers should check:

• the project’s buffer percentage and how it was justified;
• its history of losses and loss event reports;
• whether any credits have been cancelled from the buffer for the project;
• Verra’s latest statements on the pool’s adequacy.

Read carbon project due diligence for buyers for a full checklist. Our due diligence service reviews permanence risk for buyers. More on the standards hub and forest carbon hub.