DAP secretary-general Lim Guan Eng tonight took aim at the Goods and Services Tax (GST), likening claims that the tax is good to a Guinness Stout advertisement.

"Prime Minister Najib Abdul Razak said GST is good for you, like the Guinness Stout advertisement which says 'Guinness Stout is good for you'.

“This is for non-Muslims. But GST is bad for everyone," he told thousands who attended a ceramah in Seremban.

Lim, who is also Penang chief minister, said the life of Malaysians had not improved over the last five years despite rosy gross domestic product numbers.

He said this was due to a rising cost of living due to the Goods and Services Tax.

He also warned that the six percent tax could be increased in the future.

"For example, GST in Singapore started off at three percent but it had increased by three times to six percent now," he said.

Lim insisted that the country could manage without a GST imposition.

"Penang has no (state introduced) GST but it is still able to give cash handouts to the elderly, newborns, university students, school bus drivers, fishermen. We achieved all these without GST," he said.

Likewise, Lim claimed Pakatan Harapan could maintain the RM1,200 BR1M cash handouts without the GST too.

Lim also noted that when Pakatan Harapan chairperson Dr Mahathir Mohamad was prime minister, he was able to manage without a GST.

"There were many things that we did not agree during Mahathir's time but one thing we agreed on was that there was no GST," he said.

He urged voters to return Mahathir as prime minister, whom he said would help dismantle the GST.

During the ceramah, it was also announced that DAP's Seremban MP Anthony Loke would be defending his seat.