NATO is moving toward a harder question on Ukraine: not whether support should continue, but how much each ally should pay.

A proposal attributed to NATO Secretary General Mark Rutte would ask member states to allocate 0.25% of GDP annually to Ukraine. If adopted, the formula could lift yearly support to about $143 billion, nearly triple the roughly $45 billion in security assistance provided by allies last year.

The figure is not yet policy. It is a negotiating position ahead of the NATO summit in Ankara on July 7-8, 2026. But it points to a deeper shift in the alliance. Ukraine aid is being moved from emergency politics into long-term budget planning.

NATO wants a clearer burden-sharing formula

For NATO, the proposal is mainly about burden-sharing.

Several eastern and northern European members have already committed a larger share of national output to Ukraine than some bigger economies in Western and Southern Europe. A GDP-based target would make those differences more visible. It would also make future support harder to treat as a voluntary, year-by-year decision.

That is why the proposal is politically difficult. France and the United Kingdom have reportedly shown caution. Some European Union members also want their share of wider Ukraine-related loans or financial packages to count toward any NATO-linked target.

The dispute is not only about Ukraine. It is about accounting, fiscal space and political control over national budgets.

Europe’s defense bill is rising

The proposed Ukraine target comes as NATO members are already under pressure to raise defense spending. At the 2025 Hague summit, allies committed to a broader 5% defense and security spending goal by 2035. A separate Ukraine support benchmark would add another layer to that commitment.

For European governments, the fiscal pressure is direct. Higher defense spending competes with welfare budgets, infrastructure, debt servicing and industrial subsidies. Governments with strong public finances would absorb the cost more easily. Countries with higher debt and weaker growth would face harder choices.

But the alternative is also expensive. If U.S. support becomes less predictable, Europe will have to carry a larger share of Ukraine’s defense needs. That means not only sending weapons, but financing ammunition production, air defense systems, drones, logistics and repair capacity over several years.

Ukraine aid becomes a structural security cost

The most important signal is not the exact 0.25% figure. It is the direction of travel.

A fixed GDP-based formula would give Kyiv a more predictable funding base. It would also give defense companies clearer demand signals, especially in ammunition, air defense, drones, missiles and military logistics.

That matters for Europe’s industrial base. Defense production cannot expand on political statements alone. Companies need contracts, financing visibility and long-term procurement schedules. A more formal Ukraine aid target could push NATO countries toward larger multi-year orders and deeper coordination with industry.

This would have wider economic effects. Public borrowing needs could rise in some countries. Defense-sector investment would accelerate. Procurement flows would shift toward firms able to deliver quickly at scale. Governments would also face more pressure to prioritize domestic production over fragmented national buying.

Ankara will test NATO’s political limits

The proposal may not pass in its current form. NATO decisions require consensus, and several governments are likely to resist any formula that looks like a mandatory Ukraine tax.

Still, the debate itself is significant. Ukraine support is no longer being discussed only as a wartime emergency. It is becoming part of Europe’s long-term security budget.

The Ankara summit may not produce the final formula. But it will test whether NATO members are ready to turn political support for Ukraine into a measurable financial obligation.