Experts, can I ask a question about rental property's capital ga

I have lived in my current house for four years. I am considering renting it out. Should I pay tax on capital gain if later on I sell it for profit? I know the I need to pay tax on the income from rental property, if I use depreciation, then I don't need to pay tax on the depreciation, but later on need to pay more tax on the capital gain. Which rate is higher, the tax rate on income or on capital gain?

Thanks!