This or That scenario? Stock to pay off Mortgage

[Ronin Crimmons]

Should we use stock assets to pay off home mortgage?

Details:

550K mortgage at 3.5% with 29+ years left to pay (purchase price 1 mil)

Currently have 550K in stock that we could use to pay off mortgage 

The stock is not part of our 401k plans.  We have a sufficient rainy day fund and the stock is not factored in to our our overall investment goals; however, it would obviously help us reach those goals sooner.

Interest savings would be 350K + over the life of the loan

Should we keep the money in the stock market or pay off our mortgage considering Trump capped the interest deduction at 10k and our property tax more than reaches that threshold??

Thank you for your insight

[Joe Villeneuve]

Originally posted by @Ronin Crimmons:

Originally posted by @Joe Villeneuve:

You're not accomplishing anything. You would be taking your profit, and saving interest on a loan where you are not the one paying. The source of funds to pay the mortgage, on a PCF property, is the tenant's rent. That's someone else's money. They are buying the property for you. Don't help them.

 Thank you, you make some good points.  I probably was not clear.  The mortgage is on my primary residence.  Does that change your opinion?

 That's different...but you may be better off investing your stock returns elsewhere.  The stock returns are free money that the stock works to get for you.  Although you will be reducing the total interest, you won't see that savings until the end of the term...and the monthly payments don't change while you're adding money to your mortgage each month.