I imagine this will really depend on which country you're living in, and possibly which countries you're getting money from.
Strongly advise seeking out an accountant in your area for a consultation, or even finding a bookkeeper and going back and forth if they've got any experience with online businesses in your country. Maybe a tax lawyer if you're srs biz.
Alternatively, if you provide some more info, someone here may be experienced on the topic, but I'm not sure anyone can really answer without knowing which country you're in, at a minimum.
As @Potatoe mentioned this is going to depend on where you live and the country you receive from. But in general it makes no difference, you just file in the country that your business is registered in.
The only difference is usually if you're residing in a foreign country and receiving income in that country.
Hire an accountant. Or learn your local regulations and laws.