以前的政策：中国属于C类国家，工资按税前连续12个月的收入（total earnings），换算成英镑 (earnings in pounds sterling)，乘以系数3.2 (salary equivalence), 然后看能对应到英国收入的哪一档次。
现在的政策这个转换系数还待定，会在4月6日时公布：
71.We apply multipliers to past earnings from overseas to convert them into the equivalent UK earnings. These multipliers take account of the different earnings levels of highly skilled workers around the world. We are reviewing the multipliers we use to ensure that they are up-to-date. When this review is complete the multipliers will be updated on the Points-Based Calculator. These changes will not be completed by 6 April 2010 and so will be introduced at a later date. Please refer to the UK Border Agency website for updates.