How do I count diesel bought for cash without a GST invoice?

Count it from the pump receipt or a fuel log: litres × 2.68 kg CO2 per litre. Mark it as lower quality evidence than an invoice. Moving regular purchases to invoices or a fuel card makes the figure checkable.

Minimum evidence

• Pump receipt with date, litres and amount.
• A log of litres issued to each generator or vehicle.
• Stock at the start and end of the month, if you store diesel.

If receipts are missing

Estimate from amount paid ÷ the pump price on that date, and label it an estimate.

What Senseible does here

Senseible reads fuel invoices into a dated, fingerprinted record, so each figure shows the quantity, factor and document it came from.

• Fuel stock: bought or burned
• Diesel from generator run hours
• Fuel card statements as evidence

Sources: 2006 IPCC Guidelines, Volume 2: Energy, GHG Protocol Corporate Standard

Last reviewed 2026-10-22.