The European Union’s executive arm proposed a 3 percent tax on big digital firms’ online revenues in March, alleging they funneled profit through states with the lowest tax rates.

The tax requires the support of all 28 EU states, including small, low-tax countries like Ireland which have benefited by allowing multinationals to book profits there on digital sales to customers elsewhere in the European Union.

The setback is a blow to French President Emmanuel Macron, as his government had invested considerable political capital in the tax. It is also seen in Paris as a useful example of joint European action before EU parliament elections next year.

In the original European Commission proposal, the tax was intended to be a temporary “quick fix” until a broader solution could be found among OECD members.

But this was opposed by Ireland and some Nordic countries, leading French and German finance ministers to focus solely on online advertising revenues instead.

While this met with misgivings and outright opposition from at least four other ministers at a meeting in Brussels, they agreed to keep talking, Austrian Finance Minister Hartwig Loeger, whose country holds the rotating EU presidency, said.

“PRINCIPLED CONCERNS”

A broader turnover tax on firms with significant digital revenues in Europe would have hit companies such as Apple and Amazon harder, but the Franco-German proposal would not cover data sales and online marketplaces.

“I continue to have strong principled concerns about this policy direction,” Irish Finance Minister Paschal Donohoe told his EU counterparts in a debate on the tax.

Companies with big online advertising operations like Google and Facebook would be most affected by the Franco-German proposal as they make up the majority of the market in Europe.

Under this proposal, the tax would not come into force until January, 2021 and only if no international solution has been found. Paris and Berlin also proposed that it expire by 2025 in a move aimed at appeasing concerns that it may become permanent.

The Austrian presidency has been trying to reach a deal on the tax by the end of the year, while the Franco-German proposal calls for a deal by March.

“Don’t expect us to solve the challenge of a generation in a couple weeks or months,” French Finance Minister Le Maire said, adding the Franco-German proposal could still yield a deal.

German Finance Minister Olaf Scholz said tax receipts generate by the proposed Franco-German tax would be small, noting a similar tax planned by Britain was expected to raise around 500 million pounds ($641 million).