Hi,
If you receive your bonus through PAYE, then this will be taxed after a month's worth of allowances have been applied. When you begin working again, any tax overpaid as a result of unused allowances and rate bands will be refunded through your wages.
Alternatively, you can claim a tax refund while unemployed by completing a P50, though some conditions may apply.
You can find more advice here:
Claim back Income Tax when you've stopped working (P50)
Thank you.