# Setting an Internal Carbon Price: A Step-by-Step Guide for MSMEs

Canonical: https://senseible.earth/climate-intelligence/msme-internal-carbon-price-implementation-guide

Published 2026-05-06.

An internal carbon price (ICP) is a self-imposed cost per tonne of CO2e that MSMEs apply to investment decisions. It is a practical management tool to make decarbonisation pay before regulation forces it.

## Three flavours of ICP

| Type | What it is | When to use |
| --- | --- | --- |
| Shadow price | Hypothetical, used in capex evaluation only | Investment screening |
| Internal fee | Real money charged to business units | Funding green capex |
| Implicit price | Back-calculated from existing green spend | Benchmarking |

## What price should you set?

- The current EU ETS price, which sets the price of CBAM certificates
- Your CBAM exposure, if you export covered goods to the EU
- Prices your buyers and peers disclose for their own internal carbon pricing
- Your cheapest available abatement cost, as a floor

Set the price below your highest regulatory exposure but above your cheapest abatement cost. Anywhere in that band redirects capex correctly.

## A 6-week implementation plan

### Week 1–2: Baseline

Use the [Carbon Pricing Impact calculator](https://senseible.earth/calculators/carbon-pricing-impact) to model exposure at three price points.

### Week 3: Set governance

Decide who approves the price (CFO + sustainability lead), how often it reviews (annually), and which decisions it touches (for example, capex above INR 5 lakh).

### Week 4: Pilot

Apply to next three capex decisions. Document the outcome.

### Week 5–6: Roll out

Add the ICP line to your standard capex template. Train procurement to ask vendors for emissions data.

## Common failure modes

- Setting it once and never reviewing
- Excluding Scope 3 (where most MSME emissions often live)
- Letting it become advisory rather than binding

## Related guides

- [How do we maintain historical carbon data when methodologies change?](https://senseible.earth/climate-intelligence/maintain-historical-carbon-data-methodology-changes)
- [What are the different types of carbon credits in voluntary markets?](https://senseible.earth/climate-intelligence/carbon-credit-types-voluntary-markets)
- [How do we select the right emission factors for our calculations?](https://senseible.earth/climate-intelligence/emission-factors-selection-guidance)