I think it will depend on your earnings- when you fill in the application you have to enter your earnings. Although thinking about it, it will probably only affect the FOLLOWING year's finance, since they ask for the previous years info, hence you wouldn't have to enter it this year. Not 100%, best option if you're unsure is always to ring them, but generally if you fill in exactly what they ask you can't go wrong.
I would say if you're not earning a taxable amount then it won't affect next years either, but ofc you still have to tell them. That's just a guess though.