Does buying a new machine go in Scope 3 Category 1 or Category 2, and in which year?
A machine you capitalise as a fixed asset goes in Category 2, capital goods, with all its cradle-to-gate emissions in the year you acquire it. Parts, tools and consumables you expense go in Category 1. Follow your own accounts: the GHG Protocol tells companies to use their financial accounting treatment to draw the line.
The rule for drawing the line
The Scope 3 Standard defines capital goods as final products with an extended life that a company uses to make products or provide services, and tells companies to follow their financial accounting: if it is capitalised in the fixed asset register, it is Category 2; if it is expensed, it is Category 1.
Common cases in a factory
- New CNC machine, press, compressor, boiler, forklift: Category 2.
- Replacement motor or gearbox that you capitalise: Category 2; if expensed as repairs: Category 1.
- Cutting tools, dies you write off in the year, lubricants, spares: Category 1.
- Building and civil works for a new shed: Category 2.
- A machine taken on lease rather than bought: not Category 1 or 2; Scope 1 and 2 or Category 8, depending on your boundary approach.
Which year it goes in
The year of acquisition, in full. It is not spread over the asset's life as depreciation would be. If a machine is delivered in March and installed in May, use the date it is recorded as acquired in your accounts, and apply that rule every year.
Handling the spike it causes
A large purchase can make Category 2 jump in one year and fall the next. Report it as it is, explain the purchase in a note, and keep it out of any intensity metric you use to show operational improvement, or show that metric both with and without it.
What Senseible does here
Senseible classifies invoice lines by HSN code, so a machine invoice under chapter 84 sits in the Scope 3 trail as a likely capital good, flagged for you to confirm whether it was capitalised. It does not read your fixed asset register; that confirmation comes from your accounts team.
Sources: GHG Protocol Corporate Value Chain (Scope 3) Standard (2011), Table 5.4, Categories 1 and 2, GHG Protocol Technical Guidance for Calculating Scope 3 Emissions (2013), Category 2
Last reviewed 2026-10-15.