澳大利亚的“ABN”和“ACN”的含义和区别分别是什么？_百度知道 ABN 全称Australian Business Number，澳洲公司商业代码，共11位数（两位税号+9位数ACN号码构成）。有ACN不一定有ABN，像有的休眠公司没有ABN，有ABN号码就必有ACN号码。 可以百度搜索下“澳洲监管不再神秘，史上最全澳大利亚外汇监管”这篇文章，说的很详细。
abn 融资和 ABS 的区别有哪些？ - 知乎 ABN（Asset-Backed Securities，简称ABS）和ABN（Asset-Backed Note，简称ABN）都是资产证券化的形式，它们的主要区别在于发行市场、发行方式、资产类型和投资者等方面。
Backdated ABN - ATO Community You can backdate an ABN to reflect when your business activities began If you backdate, you will need to file tax returns for the periods during which you were operating as a business This includes reporting any income and expenses related to your photography activities