Finance Minister Uttama Savanayana has instructed the Fiscal Policy Office (FPO) to study a fourth phase of the Taste-Shop-Spend scheme.
If there is enough budget to finance the scheme, another phase could be rolled out after the third phase lapses at the end of this month, Mr Uttama said.
The Finance Ministry will determine when the new phase will begin, he said.
"The project is aimed at stimulating domestic spending, but the format must be considered," Mr Uttama said.
The scheme is part of the government's 316-billion-baht stimulus package aimed at triggering a spending spree and maintaining economic momentum amid the global economic slowdown, weak private investment and a delay in the government's budget spending for fiscal 2020.
Under the scheme, recipients receive 15% cash back for spending of up to 30,000 baht at participating merchants nationwide through the Pao Tang app's G-wallet 2. The rebate rises to 20% for 30,000-50,000 baht spent, for up to 8,500 baht in cash back.
Recipients of the first two phases were also given a 1,000-baht cash handout to be spent through G-wallet 1. Third-phase recipients are also entitled to cash back for buying tour packages, air tickets and lodging.
There have been 15 million recipients in the scheme so far -- 10 million in the first round, 3 million in the second and 2 million in the third.
An informed source at the Finance Ministry said the government earmarked 19 billion baht for the Taste-Shop-Spend scheme, with the first 13 billion baht doled out through the 1,000-baht cash giveaway to 13 million recipients and the remainder set aside for rebates.
Spending through the G-wallet 2 has amounted to 15 billion baht so far, with a mere 2 billion baht in cash back.
Since the launch last September, there has been 26.9 billion baht in spending, of which 11.6 billion baht was spent through G-wallet 1 and the rest through G-wallet 2.