After you've applied

If your Tier 4 visa application is successful you will receive an initial visa, valid for 30 days, that allows you to travel to the UK. You will also receive a decision letter explaining the full details of your immigration permission. Your full visa length will be stated on the decision letter. It is very important that you keep the letter safe and bring it with you when you travel to the UK.

Useful resources

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British Council – Creating Confidence 1,854 kb
Making sure that your time studying in the UK is safe and enjoyable