It's sales and value added taxes that are the issue. Some places are really easy, others are difficult, the rules depend on your location, your business other

It's sales and value added taxes that are the issue. Some places are really easy, others are difficult, the rules depend on your location, your business other potential nexuses, and the location of the customer. Once collected, the taxes must be remitted properly before the due date. You may need a tax account for every nexus. To submit the returns electronically either requires scraping websites or convincing the government to let you send them another kind of method, perhaps using EDI formats or their own XML or other weird formats.