CRA has set tax rates for RRSP withdrawals which are as follows:

• 10% (5% in Quebec) on amounts up to $5,000
• 20% (10% in Quebec) on amounts over $5,000 up to including $15,000
• 30% (15% in Quebec) on amounts over $15,000

https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/rrsps-related-plans/making-w...