"I am sure that the microenterprise tax law will be sent back for secondary review," said Vējonis, appearing on LTV's One on One on November 29.
The adoption of the 2017 budget in the Saeima included scrapping the microenterprise tax by 2019, a move which several hundred people protested on November 23.
The controversial teachers' 'loyalty amendments' were also adopted as part of a package of laws relating to next year's budget. The law would allow sacking teachers who are "disloyal" to the state.
The president will likely force review of the loyalty amendments too, said presidential representative Juris Siksnis on Wednesday.
The president is expected to send the amendments back to the Saeima by the afternoon of December 2.