入籍填表的问题

想请问各位,入籍填表时: “3.5 Address of tax office or tax office reference” 这个信息是在哪里找的呢?
谢谢!

You need to ask your account department if you are working. That is the company’s tax ref and address.

P60 上找

如果是自雇的话,可以看HMRC寄来的信上面就有

p60上找到PAYE REF,EMPLOYER’S NAME AND ADDRESS,还有PAYROLL NO,该填哪个呢?

很迷茫啊,有人知道吗?