@Mary White
Yes there are some lenders that will give you a HELOC for 90% LTV (more favorable rates at the 80% though) and so you can use the HELOC to pay off the main mortgage and carry only the HELOC. As far as having a loan called, I've never heard of anyone doing it before and as long as you're paying your HELOC payments on time they have no reason to call it in. The only way it will ruin your credit score is if you stop making payments.
Here is the difference between holding onto the cash or using the HELOC. Let's say you have a $100k mortgage with a $1000 P&I mortgage payment (just to make the numbers easier) and have $100k in cash in the bank.
Scenario #1 - Keep the cash in the bank and pay the mortgage regularly
- You will have $100k liquid cash to use for whatever you wish, earning probably ~$10 - $15 in interest per year for a net return of 0.00000000001% (sarcasm, but it might as well be 0% because the returns are garbage).
- You will continue to make the $1000 monthly payment, part of which goes towards interest and is partially lost (partially because you can write mortgage interest off).
Scenario #2 - Refinance the home with a HELOC
- You still have the same $100k loan in the beginning, but instead of having it as a fixed 30 year, it's a variable rate interest only. If you plan to make minimum payments, then forget about the HELOC because you'll be throwing money away.
- Use the $100k in the bank to PAY OFF the balance of the HELOC, effectively reducing your mortgage to $0, which saves you $1000 per month in mortgage payments.
- You still have access to up to $100k that you can pull at ANY time in any amount UP TO $100k. Let's say you have a deal that only needs $30k, then you pull $30k and only pay interest on $30k. If you take a home equity loan out for $100k, then you pay interest on the full $100k regardless of you using that money or not.
To sum it up, the HELOC gives you more flexibility and an immediate return on investment if you're going to be paying down the mortgage fast. The other part that I didn't mention, let's say you only have $50k in cash and you want to take the HELOC for the full $100k. Instead of having a $100k mortgage payment, you put the $50k against the balance and your new HELOC balance is only $50k (which means you only pay interest on the $50k, NOT the $100k).
Another thing I worked out a few months ago was this: let's say you have $0 in the bank currently but want to pay the mortgage off faster and you can dump a large sum of money into it. You can actually get compounding results by doing so with a HELOC that you won't get with a regular mortgage. Say your balance is $100k and the payment is $1000 per month. You want to start making $3000 monthly payments to pay this bad boy off fast. First month, you put $3000 and $2500 goes towards principal and $500 towards interest (using arbitrary numbers here, just to illustrate a point). So the next month, your mortgage balance is $97.5k and the payment goes down to $975, but you still make that same $3000 payment. Your second payment will have MORE towards principal and less towards interest because the balance shrank, meaning you are now lowering your total cost of the loan AND lowering the monthly payment each time.
When I calculated it out, I was able to pay off a house much faster with a HELOC using accelerated payments than I was with a traditional loan, PLUS it minimized my monthly expense for that house if I ever had any issues with cash flow that month. ON TOP OF THAT, when i put $3000 into the house payment, I am able to pull just about all of that back out the following month if I needed to. If it was a traditional mortgage, that money is locked into the house until you pull another home equity loan out. Every time you take another loan out, you incur origination fees, etc. HELOCs are generally cost free to open and have $30 - $50 annual fees to keep open.