How NOT to calculate your business carbon footprint

Laura Michalik

UX Designer

07/2025

You've decided to measure your business carbon footprint. Good on you. But before you open that spreadsheet or call that expensive consultant, let's talk about what NOT to do. After helping hundreds of businesses measure their carbon footprint, we've seen every mistake in the book.

Here are the painful (and expensive) mistakes that keep businesses from succeeding

Mistake 1: The excel expedition

What it looks like

You download a carbon calculator template, spend weeks hunting for emission factors, and create a spreadsheet that would make an accountant weep.

Why it fails

Carbon calculation involves hundreds of emission factors that change annually. By the time you've figured out the difference between Scope 1, 2, and 3 emissions, you've lost weeks of productivity. Plus, that spreadsheet becomes obsolete the moment emission factors are updated.

Matthew, CEO and co-founder at Abraxas Labs put it perfectly: "I've manually calculated a carbon footprint and purchased carbon credits before and it was a fair amount of work."

The reality check

If you're spending more time on carbon calculations than running your business, you're doing it wrong.

Mistake 2: The consultant trap

What it looks like

Hiring expensive sustainability consultants who charge thousands for a one-time carbon assessment.

Why it fails

Consultants might deliver a detailed report, but then what? You're left with a static document that's outdated within months, no ongoing measurement system, and a hefty bill that makes your CFO question your sanity.

Toni from a financial services firm shared their experience: "We'd used carbon consultants previously but the process took weeks for our finance team each year which got in the way of other priorities."

The reality check

Consultants solve yesterday's carbon problem, not today and tomorrow's business needs. They're outdated.

Mistake 3: The "close enough" calculator

What it looks like

Using free online calculators that ask for rough estimates and give you a ballpark figure.

Why it fails

These calculators are built for individuals, not businesses. They can't connect to your accounting data, don't account for your industry specifics, and provide numbers that wouldn't pass a basic audit.

As one business owner discovered: "While searching for an automated option, some have tried calculators that failed to meet their expectations."

The reality check

Rough estimates won't satisfy clients asking for proof that you've had your carbon footprint measured accurately.

Mistake 4: The analysis paralysis

What it looks like

Spending months researching different methodologies, arguing about which expenses to include, and getting stuck in the planning phase.

Why it fails

Perfect is the enemy of good. While you're debating whether to include employee commuting in your Scope 3 emissions, your competitors are already taking action and winning sustainability-conscious clients.

Victor from a consulting firm got it right: "We were looking for a way to accurately offset our carbon as a company. I spent more time reading a competitor's website walkthrough than it took me to integrate CarbonInvoice into our company."

The reality check

Action beats analysis every time.

Mistake 5: The one-and-done approach

What it looks like

Measuring your carbon footprint once, getting a certificate, and calling it job done.

Why it fails

Carbon footprints change monthly as your business grows. That one-time measurement becomes meaningless without ongoing tracking. Plus, clients increasingly want to see continuous improvement, not just a point-in-time snapshot.

The reality check

Carbon measurement is an ongoing business process, not a one-time project.

Mistake 6: The reporting nightmare

What it looks like

Having carbon data scattered across multiple systems with no easy way to generate reports when clients ask for them.

Why it fails

When all the data lives in spreadsheets, email attachments, and reports across different folders, you can't respond quickly to client requests. You end up frantically searching through files, recreating calculations, and hoping your data is current enough to be credible.

Without integrated reporting, you're scrambling every time you need to submit a tender with sustainability asks.

The reality check

If you can't quickly prove your carbon efforts, they might as well not exist.

What actually works: The three-minute solution

Here's what successful businesses do differently:

1. They go with automation

SMEs connect carbon measurement directly to your accounting software. Whether they're using Xero or MYOB, there is a solution at hand.

2. They make it ongoing

They choose systems that update automatically as your business grows, not one-time calculations that become stale.

3. They integrate with operations

The best carbon tracking happens invisibly in the background while you focus on running your business. No business should take time away from their day-to-day responsibilities.

4. They prepare for client questions

Having instant access to carbon reports becomes a competitive advantage when responding to tenders or client inquiries. While your competitors are scrambling to put a report together leaving the race altogether, you've already answered.

Do you need to measure your footprint?

If your answer to this question is yes, then you're in luck - we have a solution for you: The CarbonInvoice App

Carbon measurement doesn't have to be complicated, expensive, or time-consuming. Here's how you can do it in 3 minutes:

  • Sign up: Go to the CarbonInvoice App and create an account
  • Connect accounting data: Use the Xero or MYOB integrations to connect your existing accounting system to the CarbonInvoice App for an accurate measurement
  • Get your results: Get your results in dollars and native trees within 3 minutes
  • Pay for your native trees: Start funding them on a monthly basis for ongoing impact
About
Laura Michalik

Laura brings 4+ years crafting intuitive digital experiences that drive business and user value. With a fintech and security tech background, Laura understands how to distill complex platforms into simple, elegant interfaces. At CarbonInvoice, Laura translates difficult concept and complex data into accessible, rewarding product journeys for small businesses stepping into Carbon Action.

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