The impact on funding will be a key question for organisers. Spain was one of the "big five" countries who automatically qualify for the final, due to the size of their financial contribution to the staging of the contest.
In recent years that figure has been between €334,000 to €348,000, according to figures published by Spain's broadcaster, RTVE.
Other countries will now have to pick up that bill – although the costs will presumably be shared between all competitors, with France, Germany, Italy and the UK taking the lion's share.
And if other countries pull out, the cost for every competing nation will presumably rise.
"To lose some of your biggest financial contributors does have a huge impact, and it also has a ripple-down effect for some of the smaller countries," according to Jess Carniel of the University of Southern Queensland, a Eurovision scholar.
"So it does probably mean that we might have a smaller show [in 2026], unless the Austrian broadcaster can get together a bit more cash to make sure that it's still a spectacle."