There is a very real chance we'll have ours paid off in May which would be 1.67 years since the origination date. Even if that does not happen, it will be paid off in no more than 3 years.
In anticipation of your questions:
-The loan was a HELOC where our bi-weekly paychecks are directly deposited
-I work in sales where it's feast or famine and right now it's feast
-It was a very large amount and I have been fortunate to have a string of consecutive great quarters
-I have gone back-and-forth between paying it down versus investing, but with a floating rate of L + 3.50% I prefer the security of eliminating the debt. I am 99% sure we'll see negative rates before we see a rate hike, but like Warren Buffet and Mike McDermott say, "always leave yourself outs."
Where I differ from the article, however, is that I would never have a "mortgage payoff party". No one outside of my wife will ever know.