DEFRA 2025 · GHG Protocol · ISO 14064

Carbon intelligence, refined for how modern businesses actually work.

Measure Scope 1, 2 and 3. Generate TCFD, CSRD and SECR reports. Track your path to net zero — starting in 30 minutes.

163
Verified factors
7
Report types
10x
Cheaper
30m
Setup time
Platform

Everything you need for carbon compliance

From raw data to board-ready reports — Paspira CarbonLedger handles the entire carbon intelligence workflow in one platform.

Not offered by most competitors
Live SBTi trajectory tracking
Not just a calculator — see your actual emissions plotted against your required 1.5°C pathway on the same chart, with the exact gap in tonnes.
Not offered by most competitors
No-login supplier data portal
Invite suppliers to submit primary Scope 3 data in minutes — no account, no integration required on their end.
Scope 1, 2 and 3 inventory
163 individually verified DEFRA 2025 factors, cell-by-cell audited against the official government spreadsheet, plus unlimited custom sources.
Seven compliance report types
TCFD, CSRD, SECR, GHG Protocol, SBTi progress, carbon credits and group consolidation — generated as audit-ready PDFs.
Carbon credit marketplace
Buy and retire verified VCU, Gold Standard and UK ETS credits directly in the platform. Full reconciliation ledger included.
ISO 14064 data quality scoring
Activity-level quality scoring against ISO 14064 tiers with improvement recommendations and assurance readiness checklist.
Why Paspira

Built differently. Priced fairly.

Five capabilities that set Paspira CarbonLedger apart — from the world's only double-entry carbon ledger to projected credit cost savings.

The double-entry carbon ledger

Every tonne of CO₂ is recorded the same way accountants record money. Emissions are debits. Credits are credits. Your net position is always live, always auditable.

  • Emissions recorded as liabilities — never lost or forgotten
  • Credits recorded as assets — full provenance trail
  • Running balance visible at all times — no end-of-year surprise
  • Auditor-ready double-entry format — defend every number
Carbon reconciliation ledger
Type
Description
Amount
Balance
EMIFY 2026 GHG inventory164.7164.7
RETPeatland Restoration(30.0)134.7
RETClean Cookstoves(50.0)84.7
NETNet position FY 202684.7
84.7 tCO₂e net exposure remaining
Carbon intelligence

Insights for sustainability leaders

Original articles on carbon accounting, compliance and net zero strategy — written for business leaders who need to understand the landscape, not just the jargon.

Governance · Strategy · Risk · Metrics
Compliance5 min read

What is TCFD and why does it matter for UK businesses in 2026

The Task Force on Climate-related Financial Disclosures has moved from voluntary guidance to mainstream expectation. Here is what UK businesses need to know and do right now.

Read article →
Scope 1DirectScope 2EnergyScope 3Value chain
Carbon 1014 min read

Scope 1, Scope 2 and Scope 3 emissions explained simply

The three scopes of the GHG Protocol are the foundation of every carbon accounting framework. Understanding what goes in each one changes how you think about reducing your footprint.

Read article →
Activitydata(kWh, km, t)×Emissionfactor(DEFRA 2024)=tCO2eemissionsper yearDEFRA Greenhouse Gas Reporting Conversion Factors
Carbon 1016 min read

How to calculate your carbon footprint using DEFRA emission factors

DEFRA publishes a comprehensive set of emission conversion factors every year. Understanding how to use them correctly is the difference between a credible carbon footprint and an estimated one.

Read article →
CSRD · ESRS E1 · ClimateDoublemateriality
Compliance5 min read

What CSRD means for your business and how to prepare

The Corporate Sustainability Reporting Directive is the most significant change to business sustainability reporting in a generation. Here is what it requires and how to get ready.

Read article →
VCU · Gold Standard1tCO2eRetired · Verified · Permanent
Credits6 min read

Carbon credits explained — what they are, how to buy them and what to avoid

Carbon credits can play a legitimate role in an organisation's net zero strategy, but the market is complex and quality varies enormously. Here is how to navigate it confidently.

Read article →
1.5°C0°C4°CParis target
Net Zero5 min read

How to set a science-based target aligned to 1.5 degrees C

A science-based target gives your net zero commitment credibility because it is tied to what the climate actually requires, not just what feels ambitious. Here is how to set one correctly.

Read article →
Net zero (SBTi)Carbon neutral onlyToday2030 2050
Net Zero4 min read

Net zero vs carbon neutral — what is the difference and which should your business aim for

The terms net zero and carbon neutral are used interchangeably in the media but they mean different things. Getting the distinction right matters for credibility and long-term strategy.

Read article →
Why we built this

Most carbon platforms treat emission factors as a solved problem — pull a number from a spreadsheet, multiply, done.

When we built our DEFRA 2025 factor library, we didn't take that for granted. We checked every figure — all 163 of them — cell by cell against the official government source. In the process we found factors that had been silently wrong for years elsewhere: one paper & packaging figure was off by roughly 1,400x. Nobody had caught it, because nobody had actually gone back and checked.

That's the standard we hold the rest of the platform to. If a number is going into a report your auditor, investor or regulator will see, it should be able to survive someone actually checking it.

How it works

From sign-up to first report in 30 minutes

No implementation project. No consultants. No spreadsheets.

01
Sign up
Create your account and set up your organisation in under 5 minutes. No credit card required.
02
Enter your data
Add your monthly gas, electricity, travel and waste data from your bills. 5 minutes per month.
03
Review your results
See your total emissions by scope, benchmark position and your net zero pathway.
04
Download reports
Generate TCFD, CSRD, SECR and GHG reports instantly. Share with your bank, investors or board.
app.paspira.com/dashboard/dashboard
Meridian Foods Ltd
CarbonLedger
Meridian Foods
Professional plan
Net Zero Intelligence
Overview
DEFRA 2025
FY 2026
Total emissions
317.1
tCO2e · FY 2026
Credits retired
45.0
tCO2e offset
Net exposure
272.1
tCO2e remaining
Offset progress
14.2%
retired
317ttotal
S1 — Direct
33%
S2 — Electricity
45%
S3 — Value chain
22%
Monthly trend · FY 2026 · tCO2e
JFMAMJJASOND
Net zero trajectory
Required reduction
13.0 t/yr
Trajectory
On track ✓
Pricing

Professional carbon intelligence from £99/month

No hidden fees. No setup cost. Cancel anytime.

Starter
For small businesses starting their carbon journey.
£99/month
Scope 1, 2 and 3 inventory
Core DEFRA 2025 activities
GHG report PDF
Carbon credit marketplace
2 user seats
See plans & pricing
✨ Most popular
Professional
For businesses that need full compliance reporting.
£299/month
Everything in Starter
Full 163-factor DEFRA 2025 library
TCFD, CSRD and SECR reports
Analytics and year-on-year
SBTi target calculator
CSV import · 10 seats
See plans & pricing
Enterprise
For corporate groups and accountancy firms.
£799/month
Everything in Professional
Multi-entity consolidation
White-label reports
Unlimited seats
4hr SLA support
See plans & pricing
The real comparison

What "10x cheaper" actually means

How the usual alternatives compare, roughly, for a small-to-mid-sized business.

DIY spreadsheets
Hiring a consultant
Paspira CarbonLedger
Setup time
Days to weeks — manually sourcing factors
4–8 week engagement, typically
30 minutes
Ongoing cost
Free tool, high hidden labor cost
£5,000–£15,000+ per reporting cycle
From £99/month
Factor accuracy
Manual, often stale or uncited
Accurate, but slow to update annually
163 factors, audited against source
Compliance reports
Built by hand, per format
Included, but tied to engagement scope
7 formats, generated on demand
Best for
Very early-stage, low complexity
Complex, multi-entity, high-stakes filings
Ongoing measurement + reporting

Consultant figures are typical UK market ranges for comparable scope, not quotes from a specific firm.

Built to the highest standards

GHG Protocol
DEFRA 2025
ISO 14064
TCFD
CSRD / ESRS E1
SECR
SBTi Aligned
Free tool

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❓ FAQ

Questions people actually ask

How accurate are your emission factors, really?

All 163 DEFRA 2025 factors in our library were individually checked cell-by-cell against the official government spreadsheet, not copied from a secondary source. Where we found unverifiable figures (some spend-based multipliers, a few freight categories), we removed them rather than guess — you'll see that flagged in our methodology page.

What happens to my data if I cancel?

You retain full ownership of everything you've entered. You have 30 days after cancellation to export your complete emission history as CSV before it's deleted from our systems — no lock-in, no holding your data hostage.

Do I need a sustainability background to use this?

No. The platform is built for whoever ends up owning carbon reporting at a small-to-mid business — often finance, operations, or a founder — not a dedicated sustainability team. Most customers enter their first month of data in under 30 minutes with no prior carbon accounting experience.

Is my data secure?

Data is stored on Supabase infrastructure hosted in the EU, transmitted over HTTPS/TLS, and access is restricted by row-level security policies. We don't sell your data, and we don't use your emission figures for benchmarking or research without your explicit consent.

Can my suppliers submit data without creating an account?

Yes — the supplier portal generates a unique link per request. Your suppliers fill in a short form and submit Scope 3 data directly, with no login, password, or account setup on their end.

What happens when DEFRA updates their emission factors?

We re-audit and update the factor library annually against the new DEFRA publication, the same cell-by-cell process used to build it. You'll see the version and last-updated date on our methodology page.

Start measuring your emissions today

Join businesses already using Paspira CarbonLedger to measure emissions, generate reports and reach net zero.

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