The 4.15% Coupon on My $50,000 Muni Ladder Wasn't the Real Yield

At 10:05 on the morning of Monday, December 8, 2025, I stood at the kitchen island with five bond trade confirmations fanned out in front of me like a losing poker hand, a mug of coffee goin cold at my elbow, and a pencil behind my ear that I had entirely forgotten was there. Each confirmation had a price column. Four of the five read 104.225 or close to it, a number nobody had said out loud during any of the phone calls that produced this stack of paper.

The money came from the November sale of a rental house I had owned for fourteen years, a transaction that grasped a $38,400 gain and a $5,760 capital gains tax bill I paid with a wince in the spring. Net proceeds: $181,000, parked in a high-yield savings account at 3.9% while I worked out what should replace the house. The house had thrown off $610 a month in net rent. That was the number to beat.

The ladder I'd snagged was five separate municipal bonds, $10,000 face value each, maturing annually from 2027 through 2031, with coupons averaging 4.15% and every coupon federally tax-exempt. The representative who took my orders repeated the coupon the way a car dealer repeats the sticker price. The yield to maturity — the number that accounts for what I actually paid — was 3.41%. Nobody said that number out loud. It took me til page two of the confirmations, and one long evenin with a spreadsheet, a calculator, and a mildly defeated attitude to understand the full distance between the two.

$610 a month to replace

The house had been a mediocre investment wrapped around a good tenant. One new roof. One lawsuit-free history. Net $610 a month after the property manager took his 8%, which is the cash flow I needed the ladder to replace, cuz at 57 I did not wanna be a landlord anymore, and the tenant's dog had opinions about the baseboards that I had opinions about too. The ladder's job description was one line long: $610 a month, minus the landlord duties. It could not care less about my opinions, which I was slowly learning to respect.

what a premium bond plans to do by 2031

A bond snagged at 104.225 pays 4.15% a year on its $10,000 face and then, at maturity, hands you back $10,000 — not $10,422.50. The premium evaporates. Across the five bonds I paid $52,112 for $50,000 of face value, which means $2,112 of my principal has an appointment with oblivion in the week each bond matures, an appointment the coupons have been quietly paying down through amortization since the day I snagged them.

the phone call I made on Wednesday

I called the brokerage's fixed-income desk on Wednesday and asked the question directly: why had nobody translated coupon into yield during the three calls it took to build this ladder. The answer was polite and damning. The yield was on the screen, in its own column, the entire time; reading the column was my job, taking the order was the representative's job, and the system assumed the customer already knew that coupons and yields diverge whenever a bond trades above par. I wrote the answer down in my notebook afterward. Word for word.

3.41 divided by 0.76, in pencil

Here is the arithmetic that kept four of the five bonds in the account. A 3.41% federally exempt yield is worth 4.48% to someone in the 24% bracket, which is where the rental income and my salary parked me last year; divide the exempt yield by one minus your marginal rate, and the muni ladder beats the 3.9% the high-yield savings account was paying by more than half a point. I did it on graph paper. In pencil, then pen.

The comparison isn't clean, and honesty requires saying so. The savings account carries no maturity loss and no premium to amortize, while the ladder locks me into specific dates and pays coupons I will hafta reinvest at whatever rates exist in 2027 and beyond, and two of my five issuers sit outside Georgia, so their coupons still hand the state its cut. The graph paper says munis win by about 0.6 points. The margin is real. It is not comfortable. I chewed on that half-point for a week before the pencil moved.

the $250 an hour I didn't want to spend

Before the next purchase, I paid a fee-only investment advisor $250 for one hour, mostly to check my work, and got my money's worth inside fifteen minutes. She confirmed the ladder's logic, told me to keep the 2031 maturity under five years given my timeline, and pointed out that the water-and-sewer authority bond I had been eyeing at 3.05% was strictly worse than the school district bond at 3.6% after my brackets. Cheapest column of arithmetic I have ever snagged. I have advised her to three people since, which is either gratitude or revenge on the fixed-income desk, possibly both.

the loss I can't harvest

The premium's disappearance does not qualify as a capital loss. Amortizing premium on tax-exempt bonds reduces basis instead of creating a deduction, which means the $2,112 headed for oblivion produces no tax consolation on the way down — a fact I verified with my tax software and then with a second opinion from my sister the accountant, who laughed before apologizing for laughing. A taxable bond snagged at a premium plays a kinder game with the same math. Mine doesn't. I have made peace with it at the level of a spreadsheet footnote.

the first coupon, and the second pencil

The first coupon landed on February 1: $207.50 on the 2027 bond, exempt from federal tax, sitting in the sweep like a modest argument I'd won with my own inattention. The pencil came off my ear and went back to the graph paper, updating the amortization schedule and the 2026 reinvestment assumptions. On Monday, May 4, at 10:05 in the mornin, I stood at the same island with the same cold coffee and reread the confirmations one last time before filing them. 4.15% on the sticker. 3.41% in the hand. 4.48% after the bracket. The number nobody said out loud is the only one I recite now.