International Welcome Centre North (IWCN):
I can help you with the dutch tax system, answer questions, file for tax or help solve your international tax problems.
Trouble with the M-form, I can help.
Important item for internationals is the income that is relevant for allowances (zorgtoeslag, huurtoeslag, kind gebonden budget en kinderopvangtoeslag). That is always the worldwide income, even if parts are not taxed here. https://www.belastingdienst.nl/wps/wcm/connect/bldcontenten/belastingdienst/individuals/tax_return/worldwide_income_return/worldwide_income_re_turn/