If you are a temporary resident in Sweden, you can apply to the tax Authority for a co-ordination number, which replaces the personal identity number and will allow you to apply for F-tax status.

如果你是在瑞典暂住，可以向税务部门申请一个协调号，它将代替人口号，允许你申请“F -税种”资格。

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Please the day before the exam to get to Telford examination center confirmed ticket, must carry the " registration number" and personal documents (passport or identity card ;

请您在考试前一天亲自前往德福考试中心确认准考证，务必携带“注册号码”及个人证件（护照或身份证；

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If you have a "reasonable" expectation of victimization because your information was breached or you already have been victimized, ask the IRS for an identity protection personal identification number, or IP PIN.

WSJ: Don't Let Tax Cheaters Target You