I Paid Points on an ARM — Then Rates Fell Anyway

The closing disclosure was open on my laptop at 11:40 on a Thursday night, and my cursor kept hovering over line L of section J. Discount points: $4,200. My wife was asleep. I sat there doing the same division for the ninth time — $4,200 divided by the $61 monthly savings the buydown promised — and got the same answer: about 69 months to break even. On a 5/1 adjustable-rate mortgage, that felt like betting on a coin with an eraser on it.

I signed anyway. What I couldn't know that night was that eighteen months later, rates would fall right thru my bought-down rate like it wasn't there. The points turned out to buy something, but not what the worksheet said.

the pitch on the lender's whiteboard

My loan officer drew it out in a branch office with actual markers, which I appreciated even as I distrusted it. Base rate on the ARM: 5.875%. Pay one discount point plus a bit more, and the start rate dropped to 5.25% with a payment of $2,489 instead of $2,550. "Points are the only part of closing you control," he said. True, as far as it went. He also said the fixed period of the ARM would outlast our planned stay, and that part was true too.

The pitch wasn't dishonest. It just assumed rates would sit still, and rates have never once agreed to sit still for anybody.

what the points actually cost, to the penny

Loan amount $284,000. One point plus a quarter point of extra buydown: $4,200 total. Monthly savings $61. Break-even: month 69 of 60 fixed months. Even on its own terms, the buydown didn't pay off inside the fixed period — I was, in effect, paying extra for a payment I'd only enjoy if I kept the loan past year five. The whiteboard didn't dwell on that. Neither did I, which was my own fault. I liked the modest number.

the drop nobody scheduled

March of this year, the Fed cut twice in a row and 30-year fixed pricing slid to where my 5.25% start rate — which was set to start adjusting in eleven months — stopped looking special. Refinance quotes came in at 5.1%. My heart did a slight ugly thing. Every dollar of those points had been spent making a rate that was now worse than the going rate.

I sat with that feeling for a week. Then I opened the actual amortization instead of my feelings.

running the real numbers, not the grief

Here's what the ledger says today. For eighteen months I paid $61 less per month: $1,098 banked. The points cost $4,200, so on a pure payback basis I was down $3,102. But I had also been directing that $61 straight into extra principal the whole time — I never actually changed my outflow. That prepayment shaved about four payments off the back of the loan, worth approximately $10,300 in interest saved over the remaining term. And when I refinanced this spring at 5.1%, the points died with the old note, but the principal balance I refinanced was lower cuz of em.

Net position today: ahead by about $7,900, but only because I treated the buydown savings as forced prepayment instead of found money. That part was never in the lender's whiteboard.

the version where I lose that bet

I want to be honest about the counterfactual. If I'd taken the same $4,200 and put it directly into principal from day one with the higher rate, the math is within a few hundred dollars of the same result — the points were approximately a wash against pure prepayment. And if rates had risen instead of fallen, the start rate would have out-earned the prepayment path by year four or five. I didn't win cuz points are secretly good. I won because I refused to spend the savings.

who should actually consider points

My rule now, earned expensively: points only make sense when the break-even lands at least a year before your realistic exit, and you have the discipline to bank the savings. For an ARM, that means break-even inside the fixed period, full stop. Mine was at month 69 of 60. I signed anyway because I wanted the payment to feel slight that first winter, and I'll admit that was an emotional purchase wearing a spreadsheet costume.

If your credit score already gets you top-tier pricing, points are the only lever left, and lenders know it — the buydown menu is thicker for strong borrowers precisely cuz we're the ones who can afford to be flattered.

eleven months to the first adjustment

The reason I refinanced this spring instead of riding out the ARM wasn't the rate drop. It was the calendar. Eleven months out, my start rate expires, and every projection said the adjusted rate would land higher than the refi offer in front of me. The points, the prepayment, the whiteboard — all of it funneled into one decision: refi now, kill the adjustment risk, and stop performing monthly math about the future.

the same disclosure, one more time

I still have that closing disclosure in a folder, and last week my brother-in-law called me at 11:00 at night asking about points on his own loan, cursor hovering. I gave him the same division I did nine times in the dark: savings per month, months to break even, months you'll actually keep the loan. If the third number is slight than the second, walk. If its bigger, sign — and then never touch the savings, because the points were never honestly about the rate. They were about what you do with the $61.