[QUOTE=Daddypants]
The Avengers used to, they may still.
I remember an issue of Spiderman (?), years ago, where Spidey is stunned when he finds out that by declining an Avengers invite, he also turned down $5000 a month.
[/QUOTE]
I remember a story where he’s talking to She-Hulk–years ago, original series, possibly a Roger Stern script–where she casually mentions a $2000/week stipend. Maybe that $5K was after taxes?
The New Avengers (prior to the Civil War) initially didn’t pay, but by the time Wolverine joined, they did again. Mighty Avengers get paid, New (Secret) Avengers likely do not, although Danny Rand covers their Avengers-related room and board. Ares mentioned a salary matching his prior gig at Fisk Construction, around $60/hr. (Stark’s reply: “For that kind of money, I’d better see some razzle dazzle!”)
The X-Men, according to Fantomex, have at least five billionaires on their rolls (Warren Worthington, Charles Xavier, Monet St. Croix, Forge and Ororo are the ones I can name, and Ororo joined this club more recently than the Fantomex storyline citing five, so there’s likely one more very wealthy X-man whose name I’m forgetting). I’m pretty sure the non-billionaires get some kind of stipend. When Kitty Pryde first joined, she destroyed a Blackbird and its hangar to kill an alien intruder. Wolverine and Nightcrawler joked that she’d have it taken out of her paycheck.
The Fantastic Four get paid out of a fund Reed set up from his patents. When Ben Grimm cashed out a few years ago, he was a billionaire a couple times over. When he briefly moved to France during the Civil War, the US government seized all his assets. Not sure he ever got them back.
The Illuminati are all quite wealthy on their own, so no stipend is necessary.