I did my 90 day reporting a couple of weeks ago (retirement extension, Jomtien Immigration).

Last week i moved address (still in Pattaya area, small condo).

firstly, do i need to notify the immigration department immediately or will it be ok to wait until my next 90 day reporting date ?

Also, i'm stopping at a pal's condo rent free...I've got the condo electric bill put into my name, but there is no formal or written rental agreement as such.

Will the electric bill suffice as proof of address ? or are the immigration department going to insist on seeing some form of written agreement ?

Thanks in advance.

You can wait until your next 90 day report.

You can try using the electric bill as proof of address.