BillQuest guides

Clear answers about everyday documents

Learn which document to use, who should issue it, which fields matter, and what to check before sharing it.

Invoice vs receipt: what is the difference?

An invoice and a receipt can describe the same sale, but they are used at different points in the payment process.

Reviewed 11 July 2026

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GST invoice requirements: a practical field checklist

A GST invoice needs more than a tax rate. The supplier, buyer, invoice number, supply, value, and tax details must fit the real sale.

Reviewed 11 July 2026

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How to number invoices without creating a mess

A good invoice number is unique, easy to follow, and stable after the invoice is issued.

Reviewed 11 July 2026

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Rent receipt requirements: who creates it and what to include

A rent receipt confirms that a landlord received rent for a stated property and period.

Reviewed 11 July 2026

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Salary slip fields: what employers should include

A salary slip should help an employee understand how pay for a stated period was calculated.

Reviewed 11 July 2026

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Missing receipts and duplicate expense records

A recreated record can help explain an expense, but it is not the original receipt from the merchant or service provider.

Reviewed 11 July 2026

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Not sure who should create the document?

Check our document responsibility table before using a generator.

View document responsibilities