You can overpay your taxes just as easily by doing nothing as you can by making a mistake. The tip jar fills up either way.
We're four episodes deep into what was supposed to be a single show, which tells you something about how many ways there are to overpay in these United States of America. So far this mini-series has been a list of things to stop doing. Today is the mirror image.
In part four of the How to Pay More Than Your Fair Share mini-series, fee-only fiduciary and CPA Wayne Firebaugh goes hunting for the tips you leave by doing nothing at all: the perfectly legal, perfectly above-board tax breaks the government is practically standing there begging you to take, and the ones most people stroll past every single year without a glance. Doing nothing is a decision, and sometimes it's the most expensive one you'll make all year.
The four missed opportunities:
1. The 0% capital gains bracket. So good people genuinely refuse to believe it's real. If you wanted to overpay: in a year when your income happens to be unusually low (you're retired, between jobs, or in that golden gap after you stop working but before Social Security and required minimum distributions kick in), you'd sit on your appreciated investments and do absolutely nothing with them. Here's why that's a missed tip: long-term capital gains have a 0% rate. Honest-to-goodness, real, legal zero, as long as your taxable income stays under a threshold. For a married couple that line sits in the high $90,000s of taxable income, and that's after deductions, so your gross income can be quite a bit higher and you can still be standing in the zero bracket. Stay under it and you can sell appreciated stock and pay nothing. Not a reduced rate. Zero. The move is a thing of beauty: in a low-income year, sell appreciated shares, recognize the gain at 0%, and then immediately buy those very same shares right back. You own the identical investment you owned five minutes ago, but your cost basis has been reset up to today's higher price. You've quietly wiped out that built-in gain, tax-free. It's called harvesting gains. And before somebody emails in: yes, you can buy it back the same day. The famous 30-day wash sale rule that everybody half-remembers only applies to losses. There is no wash sale rule on gains. Make it concrete: a retired couple living mostly off Social Security and a small pension, with taxable income well below the threshold, holds an old index fund with $60,000 of built-in gain they've been terrified to touch. In the right year they could realize a big chunk of it at zero federal tax, buy it right back, and permanently erase that future tax bill. Most couples in that exact spot never do. They sit nervously on the gain until it's eventually taxed at 15% or worse, or until the stealth surcharges from earlier in this series come for it. The opportunity: treat your low-income years as the genuine gift they are. They're the rarest, most valuable tax real estate you will ever own, and most people let them expire unused, like a coupon found after the expiration date.
2. Cheap Roth conversions. Those very same low-income years unlock something else enormous. If you wanted to overpay across your entire retirement, you'd coast through the low-income years doing nothing, then get walloped later when required minimum distributions and Social Security come roaring back on top of each other all at once. The principle, one of the most important in all of retirement planning: tax brackets are use-it-or-lose-it, every single year. Retire at 62, and your income may drop into a nice low bracket for years before RMDs start in your 70s. That's a window, sometimes 10 years or more, to move money from a traditional IRA into a Roth and pay tax at those low, low rates, voluntarily filling the cheap brackets while they're sitting there empty. Do nothing, and that traditional IRA keeps growing until Uncle Sam forces it out all at once on top of your Social Security, very possibly firing the tax torpedo and triggering the Medicare IRMAA cliff. So the real choice is: pay a little tax now, on purpose, at a low rate, or pay a lot of tax later, by force, at a high rate. Inaction quietly and automatically chooses a lot, later, by force. It's a store announcing everything in the low-bracket aisle is deeply discounted, but only for these few years. Most people walk right past the markdown and come back to pay full retail after the sale has ended. The fix: every low-income year, ask one question: How much room do I have left in my current low bracket this year, and should I fill it with a Roth conversion? Asked faithfully every year for a decade, that one question can reshape an entire retirement tax bill and protect a surviving spouse for good measure.
3. Harvesting your losses. The flip side of a rule we already met. If you wanted to overpay, you'd ride out a tough market, watch some investments dip below what you paid, and if you ever sold them, sell quietly and never claim a thing in return. But a loss in a taxable account isn't just a bummer to endure. It's a genuine tax asset with real cash value. Realized losses cancel out realized gains dollar for dollar. If your losses run beyond your gains, you can use the excess to knock down up to $3,000 a year of ordinary income, then carry whatever's left forward to future years. A scary down market, handled correctly, plants a deduction you may harvest for years to come. Here's exactly where people trip: the wash sale rule, biting from the other direction. Sell at a loss and buy the same or a substantially identical investment back within 30 days, and the IRS disallows the loss entirely. You took the emotional pain of selling low and got none of the tax benefit: the worst of both worlds. The fix: either wait out the 30 days or, far more commonly, immediately buy something similar but not identical, such as a different fund tracking a similar slice of the market. You stay fully invested, you don't miss the recovery, and you still bank the tax loss.
4. The health savings account, used backwards. Quietly the most tax-advantaged account in the entire code, and most people use it wrong. If you wanted to overpay, you'd skip the HSA because it sounds like a hassle or, just as common, treat it like a checking account, paying every doctor's bill and prescription out of it the moment the bill arrives. What makes the HSA unique: it's the only account that's triple tax-advantaged. Money goes in before tax, like a 401(k). It grows with no tax, like a Roth. And it comes out completely tax-free for medical expenses. Money in tax-free, growth tax-free, money out tax-free. Nothing else in the tax code pulls off that hat trick: not your 401(k), not your Roth IRA, nothing. The sophisticated move, if you can possibly afford it and you're eligible (you need a qualifying high-deductible health plan), is the exact opposite of what most people do: max it out, invest the balance instead of letting it sit as cash, pay current medical bills out of pocket, and save every receipt. Let the HSA compound untouched for decades, then reimburse yourself tax-free for all those old expenses whenever you like. You've turned a humble medical account into the single most powerful retirement account you own.
Tally the tip jar: the 0% gains you never harvested, the dirt-cheap Roth conversions you skipped in your low-income years, the market losses you rode down and never claimed, the HSA you spent instead of grew. Notice nobody made a mistake here. Nobody did anything wrong. Everybody just did nothing, and doing nothing turns out to be one of the most expensive habits in personal finance.
The lesson humming underneath all four: a low-income year is not a problem to grit your teeth and survive. It's an opportunity to seize with both hands.
Free download: this episode's Fair Share Checklist gives you the annual questions to run every single year, your am-I-leaving-money-on-the-table review, the one you do every fall before the year closes.
If you've got a low-income year coming up (a retirement, a gap year, a sabbatical, a year between ventures), that is hands down the single best time to come sit down with us, because that's when the opportunities are widest and the window is propped wide open. Please don't let that window swing shut empty. Start at fireproofyourmoney.com.
Next time, the series finale: something close to Wayne's heart. The taxes that punish you for being generous: how good people overpay when they give money to charity or pass it to their families, and how a few small changes let you give more, help more, and hand the IRS less.
Wayne Firebaugh Inc. is a fee-only firm registered as an investment advisor in Virginia and does not sell commissioned products. Everything in this episode is general education, not personalized advice. Your situation is your own, so please see a professional before you act.
Pay your fair share, and not one dollar more of tip to Uncle Sam. Choose wisely.