Answer:
2.618%
Step-by-step explanation:
Current annual interest rate on a HELOC = 3.85%
Tax rate = 32%
After-tax interest rate = Before tax interest rate * (1 - Tax rate)
After-tax interest rate = 3.85% * (1 - 0.32)
After-tax interest rate = 0.0385 * 0.68
After-tax interest rate = 0.02618
After-tax interest rate = 2.618%
So, the after-tax interest rate you will pay on any borrowings under the HELOC is 2.618%.