Deductions & credits

Thank you for your response. 

 

So say if I am getting 5k as State tax refund and my Effective tax rate is around 10% - doesn't that mean I need to pay around $500 (roughly depending on other deductions) more on my next year tax? While if I claim standard deduction this year I get $300 less refund on federal but my state tax return of 5k is tax free?