I'm trying to figure out how much money I save with writing off mortgage interest. I know it reduces my taxable income. But how much actual money does this save me?

Looking at a refi of the house. Debating if we should pull money out or just refi to shorten life of the loan/overall costs.

I know we can write off mortgage interest, and that this reduces my taxable income. But if I pay an extra $20,000 over 15 years in interest, or $100,000 over 20 years, how much of that payment will I actually see in real dollars as far as a reduced tax burden?