The new lever: income control. While working, your income is whatever your employer pays you. In retirement, you decide how much taxable income to generate by choosing which "bucket" to spend from — taxable brokerage, tax-deferred (traditional 401(k)/IRA), or tax-free (Roth). Each is taxed differently: brokerage withdrawals trigger only capital gains on the growth, traditional withdrawals are fully ordinary income, and Roth withdrawals are tax-free. Blend them deliberately and you can hit a target spending level at very different tax costs.
Play the long game, not the annual game. The instinct to minimize this year's tax is often exactly wrong. Many retirees have "gap years" — after work stops but before Social Security and RMDs begin — when taxable income is unusually low. Those years are precious: fill up the low brackets on purpose (via Roth conversions or strategic traditional withdrawals) so you don't get forced into high brackets later when RMDs and Social Security stack on top of each other. Paying 12% now to avoid 24% at 75 is a win, even though it raises this year's bill.
2026's generous senior deductions. The One Big Beautiful Bill Act (2025) reshaped the deduction landscape. For 2026 the base standard deduction is $16,100 (single) / $32,200 (married filing jointly). Those 65+ get an additional age deduction (about $2,050 single / $1,650 per married spouse). And there's a new, temporary $6,000 per-person bonus deduction for those 65+ (tax years 2025–2028), which phases out above $75,000 MAGI (single) / $150,000 (joint). Stacked together, a single 65-year-old can shield roughly $24,150, and a married couple both 65+ can shield around $47,500, before any federal income tax applies. For many middle-income retirees this effectively zeroes out federal tax on a big chunk of income — plan around it while it lasts.
The tax torpedo. Social Security benefits are taxable based on your "combined income" (AGI + tax-exempt interest + half your benefits). As that figure crosses certain thresholds, the share of your benefits subject to tax climbs from 0% toward a maximum of 85%. The nasty part: because each extra dollar of other income can also drag more of your Social Security into the taxable column, your effective marginal rate in that zone can spike well above your stated bracket — a $1 withdrawal can create far more than $1 of taxable income. Worse, the thresholds haven't been adjusted for inflation since the 1980s–90s, so more retirees hit them every year. Managing income to stay under or move cleanly through this zone is a core retirement-tax skill.
The tax torpedo in action
Eleanor, 68 and single, receives $24,000 of Social Security and pulls $20,000 from her traditional IRA. Her "combined income" for the Social Security formula is:
That sits in the range where each extra dollar of income also drags 50¢ of her benefits into the taxable column. So she takes $1,000 more from her IRA:
| A $1,000 withdrawal creates… | Taxable income |
|---|---|
| The withdrawal itself | $1,000 |
| Extra Social Security now taxable (50¢ on the dollar) | $500 |
| New taxable income from a $1,000 draw | $1,500 |
In the 12% bracket, that $1,500 of taxable income costs $180 — an 18% effective rate on a $1,000 withdrawal, not 12%. Deeper into the torpedo, where 85¢ of each dollar becomes taxable, the same 12% bracket bites at about 22% and a 22% bracket at about 41%. That invisible spike is why you plan withdrawals to move cleanly through this zone, not stall inside it.
The 0% capital-gains bracket. Long-term capital gains and qualified dividends get their own preferential brackets: 0%, 15%, or 20%. In 2026 a single filer pays 0% on long-term gains while taxable income stays under about $48,350 (roughly double for joint filers), 15% up to about $533,400, and 20% above. In a low-income year, you can realize gains — or do "tax-gain harvesting," selling and immediately rebuying to reset your cost basis — entirely tax-free. This is one of the most underused moves in early retirement.
Asset location. Beyond when you withdraw, where you hold assets matters. As a rule of thumb, tax-inefficient assets (bonds, REITs, actively traded funds) belong in tax-deferred/Roth accounts, while tax-efficient assets (index funds, individual stocks you'll hold long-term) belong in taxable brokerage where they enjoy preferential gains rates and a step-up in basis at death. Getting location right can add a meaningful amount over decades without changing your overall allocation.
The zero-income source most people forget. Every lever above works by choosing which income to report. There is one source that reports none at all: borrowed money. Proceeds from a loan secured by your portfolio or your house are not income — no gain realized, no addition to AGI, no extra Social Security taxation, no IRMAA tier. That makes a credit line a genuine tax instrument for lumpy one-off costs and for holding your reported income under a threshold in a conversion year. It also carries a rate and a callability risk that can undo the tax saving several times over, so it is a tool with a narrow safe range — the case, the sizing, and the traps are in Chapter 18.