What is the tax rate payable when withdrawing a portion of the provident fund money?

Have resigned (under 50 years old) and need some cash flow. I transferred the provident funds from employer to a preservation fund account. How much tax will I pay if I make a withdrawal of a portion of the funds?

Is the preservation fund also a provident fund?

Yes, the preservation account is a provident fund as well.

You will pay tax according to the Lump sum calculator tables.