A new tax proposal in the Netherlands may have thrown a monkey wrench into plans to regulate the country’s online gambling market.

On Tuesday, Dutch media reported that members of the ruling parliamentary coalition had introduced amendments to the proposed Remote Gaming Bill that would tax online gambling operators at 29% of gross gaming revenue, the same rate levied on land-based operators such as Holland Casino.

This proposal runs counter to the government’s stated plan of taxing online operators at 20% of gambling revenue. The government had justified this lower rate as being necessary to encourage a majority of Dutch punters to choose to wager with Dutch-licensed sites rather than seek out more cost-competitive options from internationally licensed operators.

The Telegraaf newspaper reported that members of the VVD and PvdA coalition parties jointly submitted the new tax proposals to the legislature’s lower house, the Tweede Kamer. The legislators argue that if the government is correct about the regulated market’s ability to boost gambling revenue, the online tax rate would be reduced to 25% three years after the market liberalizes.