Bring your emissions data, teams and reporting together with Sustrax MX. Measure Scope 1, 2 and 3 emissions, manage multiple sites and track progress towards your reduction targets, backed by more than 20 years of Carbon Footprint Ltd expertise.
Carbon accounting software from Carbon Footprint Ltd: a calculation engine with annually updated emission factors, backed by more than 20 years of carbon expertise. Choose a step to see what your team can do with Sustrax MX.
Capture fuel, electricity, travel, freight, waste, water and purchasing data for every site. Enter records directly, upload category templates in bulk, or let AI Fill (Beta) read bills and invoices into a review table for your team to confirm.
Every record is converted with annually updated emission factors: UK Government conversion factors from Defra, plus country-specific electricity factors from CaDI, Carbon Footprint Ltd’s proprietary emissions database. Each entry lands in its GHG Protocol scope and category automatically, across activity-based and spend-based methods and advanced categories such as IT equipment, bulk materials, ingredients and paper.
Explore Scope 3 reporting →Give site teams, finance and sustainability leads the access they need. Collect data where the activity happens, compare locations by month and year, and consolidate company results at any scale.
Explore multi-site management →Attach evidence, add notes and apply data tags and custom fields to each record, and group locations with site tags, so every figure can be traced back to its source when reviewers, auditors or verifiers ask.
Organise emissions by GHG Protocol scope and category, compare location-based and market-based electricity, and apply the SECR, PPN 006, SBTi and Net Zero Standard reporting filters before you export the data behind your CSRD, CDP and other disclosures.
See how reporting works →Set a baseline year, model active, passive and custom reduction pathways against business as usual, and see actual emissions plotted alongside them through to 2050, with Near-term, Long-term and Net Zero milestones from the Carbon Footprint Net Zero Standard marked on the timeline, and room for extra rows such as an SBTi-aligned pathway. AI recommendations suggest where to act next.
Explore target tracking →
Hear how customers describe Sustrax: smoother reporting, easier data tracking and expert support from Carbon Footprint Ltd.
Reporting made simpler“Using Sustrax MX was simple and straightforward. So much more efficient than reporting as we have done in the past. What was previously a somewhat onerous task will now be easy and not in the slightest bit daunting.”
Synnovia · Sustrax MX
Reports issued earlier“Since implementing Sustrax, our reporting period has run smoothly and we were able to issue our reports earlier than in previous years.”
Aspen Pumps · Sustrax
Easier data tracking“The Sustrax tool has been hugely beneficial and made tracking our data so much easier. The team provided a friendly and professional approach.”
Able · Sustrax
An intuitive experience“The Sustrax tool is superb and intuitive. The team are helpful and guide us on our carbon journey.”
Brymec · Sustrax
Software & expertise“A very positive experience. We've been impressed with Sustrax and really valued the team's expertise; their verification process ensures our approach is fully in line with best practice.”
Hymans · Sustrax & expert support
Tools & support“Carbon Footprint and the tools available have been an invaluable resource to assist us in our Net Zero journey. Knowledgeable, friendly and constructive - a pleasure to work with.”
Procurri · Carbon Footprint Ltd
Organise emissions by GHG Protocol scope, compare electricity reporting methods and use built-in reporting filters for SECR, PPN 006, SBTi and the Net Zero Standard. Export the underlying data for CSRD, CDP, TCFD, SEC and ISO 14064 reporting. Coverage depends on your package and reporting boundary.
Choose how you report. We’ll show the options that help find your fit.
Full plan comparison →Annual tracking with multi-user access, bulk uploads and expert review. Discuss your required categories and reporting scope with our team.
This is a guide, not a package quote. Check record limits, included categories and commercial terms before choosing.
From your first annual footprint to monthly reporting across an organisation. Open the activity input limits to see record counts for each plan.
| Feature | Lite FreeYour first footprint, one siteFreeCreate a free account | Lite XOne site, more capacity£295 / year, ex VATSign in to upgrade | Lite XLUp to five sites, more inputs£995 / year, ex VATSign in to upgrade | AXAnnual reporting with expert reviewOn requestRequest a demo | MXMonthly tracking for organisationsFrom £2,500 / year, varies by size and scopeRequest a demo |
|---|---|---|---|---|---|
| Reporting and scope | |||||
| Results total | Included | Included | Included | Included | Included |
| PDF report | Included | Included | Included | Consultant-led Expert Review | Consultant-led Expert Review |
| Reporting frequency | Annual | Annual | Annual | Annual | Monthly |
| Sites tracked | 1 | 1 | 5 | Unlimited* | Unlimited* |
| Historical years | Not included | 1 | 3 | Unlimited | Unlimited |
| Excel data export | Not included | Included | Included | Included | Included |
| Activity input limits | |||||
| Flights | 5 | 50 | 100 | Unlimited* | Unlimited* |
| Vehicles | 5 | 25 | 50 | Unlimited* | Unlimited* |
| Fuels and energy | 6 | 20 | 50 | Unlimited* | Unlimited* |
| Public transport | 4 | 10 | 50 | Unlimited* | Unlimited* |
| Homeworker energy | 2 | 2 | 10 | Unlimited* | Unlimited* |
| Freight | Not included | Not included | 10 | Unlimited* | Unlimited* |
| Water | Not included | Not included | 10 | Unlimited* | Unlimited* |
| Waste | Not included | Not included | 10 | Unlimited* | Unlimited* |
| Staff commuting | Not included | Not included | 40 | Unlimited* | Unlimited* |
| Team and analysis | |||||
| Custom fields | Not included | Not included | Included | Included | Included |
| Analysis data tags | Not included | Not included | Not included | Included | Included |
| AI reduction recommendations | 5 | 50 | 100 | Unlimited | Unlimited |
| Multi-user access | Not included | Not included | Not included | Included | Included |
| Bulk data upload | Not included | Not included | Not included | Included | Included |
*Unlimited sites and input entries apply to the categories included in your agreed AX or MX package. Custom fields and analysis data tags are separate features. Looking for the free personal calculator?
In this walkthrough, one of our product managers introduces Sustrax MX – our most complete platform, built for large organisations that need every feature: unlimited sites, multi-user access, advanced Scope 3 categories and monthly reporting, all in one place.
Bring your data sources, site structure and reporting requirements to a demo. Explore monthly tracking with MX, annual reporting with AX, and the right package for your team.
To request a demo use the links above — or fill in the form to get access to an information slide deck.
Start a free Sustrax MX trial to explore the business platform. For a personal footprint or a first small-business estimate, choose the free Sustrax Vita or Sustrax Lite calculator. Compare your options →
Carbon accounting software turns activity data, such as energy consumption and business travel, into a greenhouse gas inventory using emission factors. Sustrax also helps organise records, compare results and prepare reporting data. Explore the software.
Yes. Start a free 7-day Sustrax MX trial to evaluate our business carbon accounting platform. We also offer Sustrax Vita, a free personal and household calculator, and Sustrax Lite, a free business account for one site with annual tracking and a PDF report. Compare the trial and free calculators.
Scope 1 covers direct emissions from sources your organisation owns or controls. Scope 2 covers emissions from purchased energy. Scope 3 covers other indirect emissions across the value chain, such as purchasing and business travel. Explore Scope 3 calculation methods.
Lite XL supports up to five sites. AX and MX support unlimited sites within the agreed scope, with multi-user access and bulk upload. MX adds monthly tracking. Compare multi-site workflows.
Sustrax supports carbon calculation and reporting workflows. Your reporting boundary, data completeness, methodology and any verification requirements still need to be assessed. Carbon Footprint Ltd can help you identify the appropriate software and support.