Carbon reporting from QuickBooks data.
Export your vendor spend from QuickBooks as a CSV, upload it, and get a GHG Protocol carbon report in minutes, with no queue and every emission factor cited to its source. No integration, no manual factor lookup, no accounting changes. Scope 1 and 2 from $20; Scope 3 from $49.
Can you calculate carbon emissions from QuickBooks?
Yes. Your QuickBooks ledger already records what you spent and with whom. Spend-based carbon accounting, which the GHG Protocol Scope 3 Standard accepts as a data type (money spent, Table 7.2), maps each purchase to an emission factor in kg CO₂e per dollar and multiplies. You already have the hard part: the spend data.
The engine reads your export and classifies each purchase line. A US company's purchases are priced with EPA Supply Chain GHG Emission Factors v1.3, electricity with eGRID 2023 and fuels with the EPA Emission Factors Hub 2025. Payroll, tax and rent are set aside as non-emitting, refunds and credits reduce their own category, and any line the engine cannot identify is reported as unidentified, not guessed. Scope 1 and 2 come with every report; Scope 3 from the $49 Complete report.
How it works in three steps
- 01Export from QuickBooks
Reports → Expenses by Vendor Summary (or Profit & Loss Detail) → export to CSV. Any file with a vendor column and an amount column works.
- 02Upload the CSV
Drop it into the carbon-draft tool. The engine auto-detects columns, encoding, decimal format, and dates, then classifies each purchase line to an emission factor.
- 03Download the cited report
A GHG Protocol PDF with every factor traced to its source document and a ledger with per-row confidence: the top 20 transactions by spend on Basic and Complete, every priced row on the Disclosure-Aligned report.
How accurate is it?
Spend-based estimates carry roughly ±25-40% uncertainty at the category level. That range is our engineering estimate for the method; the GHG Protocol publishes no figure for it. It is fit for answering a customer questionnaire or finding your emission hotspots, not a substitute for an activity-based inventory checked by a third party. The report states how many rows were priced from spend and how many from your meter readings or invoices.
What does it cost?
Frequently asked questions
Can you calculate carbon emissions from QuickBooks data?
Yes. Export your vendor spend as a CSV from QuickBooks (Reports → Expenses by Vendor, or the Profit & Loss detail) and upload it. The engine classifies each purchase line to an emission factor and returns a GHG Protocol inventory: Scope 1 and 2 on every report, Scope 3 from the $49 Complete report. No accounting changes, no integrations, no manual factor lookup.
How accurate is a spend-based carbon estimate from QuickBooks?
Spend-based accounting carries roughly ±25-40% category-level uncertainty. That figure is our engineering estimate for the method; the GHG Protocol publishes none. It suits screening, supplier questionnaires and hotspot finding. For high-impact categories, add activity data (gallons or litres of fuel, kWh of electricity) and the report uses it in place of spend.
Which QuickBooks report should I export?
Any report with a vendor (or description) column and an amount column works. The simplest is Reports → Expenses by Vendor Summary, exported to CSV/Excel. The Profit & Loss Detail or the Transaction List by Vendor also work. The engine auto-detects the columns, encoding, and date format.
Is a QuickBooks-based carbon report good enough for a Walmart, Microsoft, or CDP supplier questionnaire?
For most SMB supplier questionnaires (Walmart Project Gigaton, CDP Supply Chain), a spend-based screening report gives the Scope 1, 2 and 3 figures asked for. Microsoft's program also asks in-scope suppliers for third-party assurance or an external consultant's letter over those figures, so check each buyer's requirements. It gives a Scope 1, 2 and 3 number with every factor cited. California SB-253 lets reporting companies use spend-based and other secondary data for Scope 3, and the draft rules CARB previewed at its July 2026 workshop do not require Scope 3 assurance, so a spend-based report like this one can feed a customer's SB-253 Scope 3 disclosure. CSRD filings are made by large companies, which may ask their suppliers for more detailed data.
How long does it take and what does it cost?
Minutes from CSV upload to PDF download, with no queue. Pricing: Basic $20 (Scope 1 & 2), Complete $49 (adds Scope 3), Disclosure-Aligned Report $299 (the full priced ledger, CDP/CSRD/SB-253 framework mapping and the calculation workbook).
What makes this different from a spreadsheet of EPA factors?
Every factor in the report is cited to its source document by name and table or section. For a US company these are EPA Supply Chain GHG Emission Factors v1.3, eGRID 2023, the EPA Emission Factors Hub 2025, EPA WARM v16 and IPCC AR5 global warming potentials for refrigerants. You are not hand-pulling factors and hoping you used the right one: the engine maps each purchase to one of about 70 emission types, applies the factor and shows the result by category, and row by row in the Disclosure-Aligned report, so a CPA or auditor can check the numbers.
Turn your QuickBooks export into a cited report.
Upload the CSV you already have. Get a GHG Protocol report with every factor traced to source. Scope 1 and 2 from $20, Scope 3 from $49.
Generate carbon draft →