A new digital identity, dubbed CorpPass, will be rolled out on Sept 15 to allow businesses to access e-government services more securely and with greater privacy.
This means organisations will no longer need to use the shared SingPass accounts of individuals for corporate transactions, including filing of corporate taxes and making work permit applications.
Having separate log-in systems for citizens and businesses will enhance security and individuals' privacy, said the Infocomm Development Authority (IDA).
"As more government services go online, a higher level of sophistication in identification and authentication is needed," said Mr Chan Cheow Hoe, assistant chief executive of the IDA, which is behind the roll-out of CorpPass and SingPass.
Individuals' SingPass accounts are vulnerable when freely shared.
They have been abused by illegal syndicates to make fraudulent work pass applications.
CorpPass, however, is more secure as it will allow Singapore-registered business owners to appoint employees to manage user accounts which are centrally managed and can be disabled instantly if compromised.
If an unauthorised CorpPass user account is used, the transaction will not go through.
Four government agencies - Singapore Customs, the National Environment Agency, the Intellectual Property Office of Singapore and the Ministry of Trade and Industry - will start using CorpPass from Sept 15.
Companies apply for grants or declare their imports or exports on the websites of these agencies.
Since a trial in April, more than 1,500 business users have registered and activated their CorpPass accounts.
To register, visit www.corppass.gov.sg
The IDA will roll out CorpPass progressively, with more government agencies coming on board over the next few months.
The new sign-in system will be mandatory for all 200 e-government services by the end of next year.
Businesses and Singapore-registered societies and charities can still use SingPass for e-government transactions until the end of next year, when CorpPass takes over.
Tutors, taxi drivers and hawkers with no registered companies here do not need to switch to CorpPass. They can continue to use SingPass.
Mr Aloysius Cheang, Asia-Pacific executive vice-president of global computing security association Cloud Security Alliance, said that CorpPass will give companies safer access to online government services and more streamlined management of access accounts.
"It becomes messy when employees leave the company under the SingPass system," said Mr Cheang.