What to Do If an Invoice Doesn’t Specify Whether to Apply Withholding Tax?
If you receive an invoice without a clear indication of whether withholding tax applies, the obligation to withhold remains with the payer. In certain cases—such as professional services—withholding tax must still be deducted, even if not specified on the invoice. Find out when and how to apply it correctly to avoid tax issues.

Applying withholding tax to invoices is a crucial aspect of financial compliance for businesses. If the issuer of an invoice fails to indicate whether withholding tax should be applied, the responsibility falls on the payer to ensure compliance and avoid potential tax penalties.
When Should Withholding Tax Be Applied?
Obligation to withhold tax
Businesses and self-employed professionals must apply withholding tax when paying for professional services (such as legal, accounting, or architectural services). This obligation remains even if the invoice does not explicitly state the withholding tax.
Cases Where Withholding Tax Does NOT Apply
If the invoice is issued by a limited company (Ltd) or public limited company (Plc), withholding tax does not need to be applied, regardless of the type of service provided.
No withholding tax is required for purchases of goods or business services (such as construction or electrical services), except in certain cases where individual service providers are taxed under specific schemes.
What If the Invoice Doesn’t Specify a Withholding Tax?
If there is uncertainty about whether the service falls under a professional or business activity, it is advisable to:
Consult the UK tax classification guidelines to determine if the service is categorised under self-employed professional activities.
If the service falls within the professional services category, withholding tax must be applied, regardless of whether the invoice was issued by an individual or a partnership.
Conclusion
When an invoice does not specify whether withholding tax should be applied, the liability remains with the payer. Ensuring the correct classification of the service and understanding the tax obligations is crucial to avoiding penalties and ensuring full compliance with HMRC regulations.
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