The revised 2011 Tax Compliance Country Guide V39 includes an updated chapter for Singapore.  As with previous versions, this chapter was written and signed by KPMG.  According to KPMG, Singapore regulations allow e-Invoices to be used in GST calculations, reports, and archives for tax audits. 


According to the Singaporeans regulations:

  • invoices can be transmitted electronically if the purchaser agrees to receive them in the electronic format;
  • invoices can be issued by sellers or buyers;
  • a company can outsource e-Invoice and e-Credit note issuance to a third party;
  • under conditions self-billing is recognized as an invoicing practice


The statutory background can be found on the IRAS’ website:

The revised chapter reflects the changes made in the last release of the Ariba Network to address invoices in non-SGD and the revised approach for displaying TAX INVOICE as required to be displayed on the invoice.  What's interesting about Singapore is that although e-Signatures are not required, Singapore does have laws requiring that controls be established to ensure that the electronic tax invoices cannot be manipulated before and during transmission and that the invoice’s authenticity of origin and the integrity of its content must be guaranteed.  As a result, we have decided to activate the TrustWeaver e-Signing process further strengthening the available controls around the supplier’s and the buyer’s invoicing processes and data integrity.


If you are interested in e-Invoicing in Singapore, please contact your Ariba representative for the latest version of Ariba's Country Guide.