Tom Nook will charge you 5,000 Nook Miles (or about 50,000 Bells) for the joy of moving to his island. You'll need to take care of this obligation on the Buy Nook Miles Tickets main day.
It shouldn't be a lot of work, as you'll be rounding up Nook Miles just by finishing different goals (gathering 10 bugs, selling Clumps of Grass, and so forth.). You'll finish a large number of these targets easily.
yet don't hesitate to glance through your Nook Phone to www.lolga.com check whether there are any assignments close enough.