Frequently Asked Questions

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Does obtaining CSI now make up for CSI absence in the past?

STOP PRESS - See this FAQ for important information on Comprehensive Sickness Insurance.

Recent developments will likely affect many areas including nationality, naturalisation, registration, access to benefits and more. The answer given below is therefore now out of date.

In the meantime, if you believe you are affected, please seek legal advice. If you have suffered loss because of past decisions where the Home Office said you did not meet the CSI requirement, please email us at .


No, obtaining CSI in the present won’t make up for the lack of CSI in the past. You would need to have had CSI during your past time as a self-sufficient person or as a student in the UK. 

It is better to wait until the gaps no longer form part of your 10 years before applying for citizenship, or apply before that time and ask for discretion.

However, please see our FAQ Can I lose my family reunion rights if I am granted citizenship by discretion for not having CSI in the past?

Note: this question, like other FAQs on Comprehensive Sickness Insurance (CSI), relates to applications for British citizenship, when considering whether periods of past residence were lawful.

CSI was not required to apply for pre-settled or settled status under the EU Settlement Scheme. Also, once pre-settled or settled status is granted, you are lawfully resident, and you do not need CSI.