PAYG Withholding in AP

PAYG withholding (Pay As You Go withholding) in the AP context refers to the obligation to withhold a portion of a payment to a supplier when that supplier has not quoted a valid ABN. This is distinct from PAYG withholding from employee wages, though both are reported and remitted to the ATO under the same system. The no-ABN withholding obligation is specifically a supplier payment compliance issue that AP teams manage.

When a supplier provides goods or services in the course of a business but does not quote an ABN, the paying business must withhold 47 percent of the gross payment (excluding GST). The withheld amount is remitted to the ATO through the business's existing PAYG withholding account, reported on the IAS (Instalment Activity Statement) or BAS, and an annual report is lodged. The supplier can reclaim the withheld amount through their individual or company tax return by declaring the gross income and the withholding credit.

Practical management in AP

The most common scenario where no-ABN withholding arises in practice is an unregistered supplier -- a sole trader who is under the GST registration threshold, or a new business that has not yet obtained an ABN. In both cases, the supplier may genuinely not have an ABN, but the paying business's withholding obligation is not affected by the supplier's registration status or the reason for the missing ABN.

AP teams should establish a clear process for handling invoices that arrive without a supplier ABN: request the ABN from the supplier before processing; if the supplier confirms they do not have an ABN, calculate the withholding amount, process the net payment, and record the gross amount and withheld amount for BAS and annual reporting; notify the supplier of the withheld amount so they can claim it back through their tax return.

Businesses that process large numbers of casual or occasional suppliers -- event-related services, tradespeople for one-off maintenance tasks, creative professionals -- are most likely to encounter no-ABN situations. Building an ABN collection step into the supplier engagement process (before work commences, not after the invoice arrives) is far more efficient than applying withholding and then managing the administrative trail that follows.

Withholding variations and exemptions

The ATO allows businesses to apply for withholding variations in specific circumstances -- most commonly where the 47 percent rate would significantly overshoot the supplier's actual marginal tax rate. Withholding variations are typically used by businesses with foreign supplier payments subject to withholding under tax treaties rather than the standard no-ABN scenario. For domestic no-ABN suppliers, the 47 percent rate applies without variation.

The ATO also allows suppliers who are in the process of obtaining an ABN to provide a statement to this effect, which can delay the withholding requirement for a short period. This provision is designed for genuinely new businesses and should not be used as an indefinite workaround. If a supplier cannot provide a valid ABN within a reasonable timeframe, withholding should proceed.