想请问下如果拿到永居后想入国籍，拿到永居后什么时候能申请入籍？
假如今年一月申请永居，三月永居批下来，那是明年一月能申请入籍还是三月入籍？
谢谢
如果你不是英籍配偶的话
那么要求就是，在你递交入籍申请之日，必须至少已经持有PR12个月。当你还在等待你的永居审批结果时，你的immigration status 还是持续为你在拿到PR之前的身份。所以3月批下来的永居，明年3月就符合‘永居12个月’这个要求。
UKBA官方说明：
Immigration time restrictions
You must be free from immigration time restrictions when you apply for naturalisation. Unless you are married to or the civil partner of a British citizen, you should have been free from immigration time restrictions during the last 12 months of the residential qualifying period.
注意入籍没有类似于永居那样的提前28天申请的说法。
具体要求看这里（申请人非英籍配偶）：http://www.ukba.homeoffice.gov.uk/britishcitizenship/eligibility/naturalisation/standardrequirements/
如果以前没有在英国常驻的话，是2年英籍配偶签证才来到英国的话，一共在英国呆满3年才可以申请入籍：
Residential requirements
In order to demonstrate the residential requirements for naturalisation you need to:
have been resident in the United Kingdom for at least three years (this is known as the residential qualifying period); and
have been present in the United Kingdom three years before the date of your application; and
have not spent more than 270 days outside the United Kingdom during the three-year period; and
have not spend more than 90 days outside the United Kingdom in the last 12 months of the three-year period; and
have not been in breach of the immigration rules at any stage during the three-year period.