A home equity line of credit, or HELOC, is a borrowing limit secured by your house. You can draw on it, pay it back, and draw again. A transfer from a HELOC can land in your checking account the same day. A loan from a cash value life insurance policy usually takes a couple of days to arrive. That gap matters when a seller wants payment today.

Say you're buying a $20,000 car. When I recorded my long guide to Infinite Banking, my HELOC charged about 9% and my policy loans charged about 5%. The policy was the cheaper place to borrow. Your rates will differ, and both can change, so run your own numbers.

Here's how I use the two together. The dealer wants the money today, so I draw $20,000 from the HELOC, pay for the car, and send in the policy loan request that same day. When the policy loan reaches checking, all of it goes straight to the HELOC. The HELOC balance returns to where it started, and the car ends up funded at the policy's rate.

What does the detour cost? Interest on $20,000 at 9% for three days is about $14.79. So speed costs about that much here. Leave the same $20,000 on the HELOC for a whole year and the gap between 9% and 5% costs you $800. Three days at the higher rate is a small part of that.

Why not just wait for the policy loan? Because the seller may not wait, and the other ways to cover a gap are worse. A credit card could charge you far more than 9% if the balance carries past its due date. Why not leave the purchase on the HELOC? Because the HELOC rate is variable, which means it can climb while the balance sits there.

The policy side isn't free either. A policy loan reduces your cash value and your death benefit while it's outstanding, and it charges interest. So decide the payback schedule before the money moves. I'm a licensed insurance broker, not a financial advisor, and your policy's loan terms are the ones that count.

Write the sequence down so the last step doesn't get lost: draw, pay, request, repay. The risk is forgetting to repay. If the policy loan lands and the HELOC balance just sits there, you're paying 9% when you could be paying 5%. Set a calendar reminder for the day after you send in the request.

Two things make this work. The HELOC needs room on it before you need it, so don't run it near its limit. And the draw has to land fast. The four ways to move money off a HELOC shows which transfers land the same day, and which loan to take first covers when the policy should be your first stop.

Call your insurer this week and ask how many days a loan request takes to reach your checking account, because that number is how long your HELOC bridge has to last.