The High Court has suspended the implementation of the Finance Act 2023.
The Act is a product of a finance Bill passed by Parliament last week and assented to the law on Monday by President William Ruto.
Lady Justice Mugure Thande in her ruling said she was satisfied that the applications met a threshold for conservatory orders.
"I am satisfied that the application meets the test of conservatory orders and I do grant prayers 2 and 3 of the application until July 5, 2023, when the matter is scheduled for mention for directions," Justice Thande ruled.
Thande further directed that the applications be served upon all parties today Friday, June 30 and responses be filed and served by July 4, 2023.
Busia Senator Okiya Omtatah is among the petitioners who moved to court seeking the implementation halted.
Others are Eliud Karanja Matidi, Michael Kojo Otieno, Benson Odiwuor Otieno, Blair Angima Oigoro, Victor Okuna and Florence Kanyua Lichoro.
Cabinet Secretary for National Treasury and Planning Ndungu Njuguna, Attorney General Justin Muturi, The National Assembly and the Speaker of the National Assembly Moses Wetangúla were listed as respondents in the case.