Thailand forum

I don't have any experience of Kao to Phangan on party night. But I hate unanswered questions so I'll throw in what I know.

For a start, Tao to Pnangan is a lot further than Samui to Phangan. I've not heard of anyone organising specialised speedboat etc transfers for party night.
But there is no reason why you can't use the normal big ferry transfers, although my memory of the times involved means you would have to come down on party afternoon, stay all night, and then go back next day. Google for Lomprayah and Songserm to see ferry times.

Another option: Not all places on Phangan have the compulsory 4/7 nights etc around party time. Google Longtail Resort., Mae Had View, Plaas, Bamboo Hut, Mai Pen Rai, Beam to see what their policy is (if you want lower midrange maybe Cookies, Had Salad). These places are on a diverse number of beaches but the thing about FMP night is that all beaches lay on transport to the party. The only one I'd be hesitant about is Bottle Beach ( I'm sure they have a SUV that goes down, but getting back may not be real easy).

Hey, me and a couple of mates did this last new years for the same reasons you stated, it's super easy to do, we caught a regular ferry (easily booked through your accommodation) on the morning of the 31st (though there's a number throughout the day and afternoon) and stayed and partied all night and caught the ferry back to koh tao around 8ish in the morning on the 1st. I'd recommend this as we loved koh tao and it was a LOT cheaper than the options on KP over that new years period. So as long as you have no issue not sleeping till late morning the next day this is a good option, seemed like quite a few people were doing this as well. Hope that helps.

FMPs are amongst the most dangerous things to do there. People die every year at these things. Also the most non Thai thing you can do. There's also a lot of drink spiking, fire burns, drug arrests and sometimes overloaded boats sink on the way back.