Offer your insights or judgment on the input financial query or topic using your financial expertise. Reply as normal question answering

Is there an advantage to keeping a liquid emergency fund if one also has an untapped line of credit?
Let me offer what I did in a similar situation - Two points (a) we were banking $20K/yr or so to the cash fund, 2 good incomes, and the ability to go indefinitely on just one of the 2. (b) A HELOC that was prime-1.5%.   The result was to mentally treat the HELOC as our emergency fund, but to enjoy the interest savings of over $16,500/yr for the $100K that had a sub-1% return.  When I first referenced this story, I came under criticism. Fair enough, it's not for everyone. Let's jump ahead. We owe $228K @3.5%. We had tapped the equity line for brief periods, but never over $20,000. When we lost our jobs, both of us, we had hit our number and are semi-retired now. Our retirement budget included the current mortgage payment, so we are in line for that dropping out of the budget in 12 years, and starting social security after that, which I did not include as part of the budget.  Note - when we lost our jobs, the severance was 6 month's pay, and we collected unemployment as well. The first 12 months were covered without tapping our retirement funds at all. So, to Nick's point (and excellent answer) our first line of defense against unemployment was this combination of severance and unemployment insurance.