Poland is allocating 4.48 percent of its gross domestic product to defence this year, making it the only ally above the 4-percent mark, public broadcaster Polish Radio's Brussels correspondent, Beata Płomecka, reported.
Lithuania is expected to hit 4 percent in 2025, while Latvia ranks third with 3.73 percent.
Other members spending more than 3 percent include Estonia, Norway, the United States and Denmark.
For the first time since the Cold War, all NATO countries are expected to meet the alliance's long-standing target of allocating at least 2 percent of GDP to defence.
Those at the bottom of the list—Luxembourg, Spain, the Czech Republic, Belgium, North Macedonia, Germany and Portugal—are projected to reach the benchmark this year.
NATO set the 2-percent goal more than a decade ago.
Earlier this year, alliance leaders backed plans for a new target of 5 percent by 2035, with 3.5 percent earmarked for rearmament and the rest for broader defence needs such as cybersecurity and infrastructure.
The move came amid pressure from US President Donald Trump.
At a summit in The Hague in June, NATO leaders reaffirmed their unity in the face of Russia's war in Ukraine.
(gs)
Source: IAR, NATO