It's fragility dressed up as responsibility. Clearing the mortgage feels like the responsible thing — and it converts money you can spend into equity you can't, at the stage of life when getting it back out is hardest. Before you write the cheque: do you have two to three years of living expenses you could reach this week?
Possibly the most important check on this site, and the one most often skipped.
Clearing the mortgage feels like the responsible thing to do, and in one sense it is — the debt is gone and the interest stops. But look at what actually happened to your balance sheet: money you could have spent on anything became equity in a building you can't sell a corner of.
You're no poorer. You may be considerably more fragile. If a market falls, a roof fails, or a health event arrives, the question isn't what you're worth — it's what you can reach this week. And getting equity back out of a house takes months, costs money, and is hardest exactly when you most need it.
Patrick has $180,000 in cash, $320,000 in investments, and spends $66,000 a year against $24,000 of pension income. His portfolio funds the $42,000 gap, so his cash covers about 4.3 years — a comfortable position.
He's thinking of clearing his remaining $160,000 mortgage, which would end a $1,450 monthly repayment. That's a real benefit: his spending gap drops to about $24,600 a year.
But his cash drops from $180,000 to $20,000. Even allowing for the lower spending, that's 0.8 years of cover, down from 4.3.
He'd be debt-free and roughly ten months from having to sell investments to eat — possibly into a falling market. The calculator suggests he could safely clear about $80,000 while keeping a three-year buffer. That still cuts the interest and the repayment meaningfully, without converting his safety net into brick.
You'll notice cash and sellable investments get their own rows. That's deliberate. In a calm market they're both accessible. In the crisis where you'd actually need the money, the investments are worth 30% less — the same event that created the need reduced the resource.
Cash is the number to plan around. Investments are a useful second line, not a first.
If you're going to pay down a mortgage substantially, arrange a redraw facility or line of credit before you do it, while you still have employment income. Lenders assess on income, and retirement income assesses poorly. People are frequently surprised to find they can't borrow back money they themselves paid in.
More broadly: almost everything else on this site can be adjusted next year if you change your mind. Cash converted into home equity is close to a one-way door, and it gets harder to reverse every year you age. That's what makes this worth ten minutes before signing anything.
General information only — not financial advice. "Liquid" here means accessible without a forced sale at a bad price; that judgement depends on the market conditions at the moment you need the money, which nobody can know in advance. Selling investments to clear debt may trigger tax. Credit lines secured against a home can typically be reduced or withdrawn by the lender, and are hardest to obtain after employment income stops — so treat any facility you don't already have approved as unavailable.