Retirement Tax Timeline: Ages 55 to 75

Inspired by: The Retirement Tax Timeline — Retire with Julia, CFP® (Oct 31, 2026, 14 min).

Rewrite in site voice, not a transcript. Load-bearing ages and dollar limits checked against IRS / Medicare pages. Not tax, legal, or personalized advice — confirm with SSA, IRS, employer HR, and your CPA before acting.

The Point

Retirement tax planning is not one trick you set and forget. The tax code opens and closes windows by age. The usual mistake is not a “bad” move — it is a good move used in the wrong block, or a window that closed while you were still on autopilot.

Four blocks. Different jobs. Married couples of different ages can be in two blocks at once — one spouse’s age can be an opportunity while the other’s is a constraint.

Block	Julia’s name	The actual job
55–60	Shaping years	Build the mix you will retire with: catch-up, Roth vs traditional, taxable brokerage as the bridge.
60–65	Window years	Paycheck may stop. Use empty brackets on purpose. Watch ACA MAGI. IRMAA lookback starts at 63.
65–70	Heavy lifting	Marketplace is gone. Often the best Roth-conversion years if Social Security and RMDs have not started yet.
70–75	Management years	Income starts arriving on its own. QCDs, reinvest unused RMDs, IRMAA, survivor / heir setup.

Related on this site: Retire at 60 · Health insurance · Medigap vs Advantage · SS COLA lag · Passing assets · Guardrails spending

2026 numbers that actually matter

Item	2026
401(k)/403(b)/gov 457 elective deferral	$24,500
Age-50+ catch-up (those plans)	$8,000
Ages 60–63 “super” catch-up (year you turn 60–63)	$11,250 instead of $8,000
IRA contribution / age-50+ IRA catch-up	$7,500 / $1,100
Roth catch-up mandate	If prior-year wages with that plan sponsor > $150,000, catch-ups in a plan with a Roth feature must go Roth
10% extra tax on early distributions	Generally until 59½, with exceptions (Rule of 55 is plan-only, not IRA)
QCDs from an IRA	Age 70½+, paid directly to a qualified charity
RMDs	IRS still describes the IRA required beginning date as April 1 of the year after you reach 73. SECURE 2.0 pushes that to 75 for people born 1960 or later — confirm your birth-year rule before you treat 73 as gospel.

55–60 — Shape the balance sheet

Biggest job: decide what you will own when the paycheck stops — not just a headline net-worth number.

Use catch-up space while you still have earned income. These are often peak-earning years. Do not assume every extra dollar belongs in pre-tax 401(k).
Project the traditional pile out to RMD age. If you keep stuffing pre-tax and it keeps compounding, what taxable income does that create in your 70s? If that number is ugly, start sending some new money to Roth because the math says so, not because Roth is a personality trait.
Build the taxable brokerage. No contribution cap, no early-withdrawal penalty, no RMD. Tax-efficient ETFs can be sold at long-term capital-gains rates. This is the bridge if you leave work at ~60 and delay Social Security toward 70 — ten years of spending without forced IRA withdrawals.
$3M all in a traditional 401(k) is not the same as $3M split across pre-tax / Roth / brokerage. The second mix can fund lifestyle, fill brackets with conversions, harvest gains, and keep ACA MAGI in range. The first mix cannot.
Learn the access rules before you resign. 59½ generally ends the 10% extra tax on IRA/401(k) withdrawals (ordinary income still applies). Rule of 55: if you separate from service in or after the calendar year you turn 55, withdrawals from that employer’s qualified plan can avoid the 10% extra tax. It does not apply to IRAs. Rolling the 401(k) to an IRA too early can kill the Rule of 55 on that money.

Mistake: max traditional 401(k) on autopilot and “figure out taxes after I retire.”

By 60 you want: a projected pre-tax balance at RMD age, a deliberate traditional/Roth mix, and enough brokerage to actually bridge.

60–65 — The window (and the ACA trap)

If you are still working: ages 60–63 are the super-catch-up years ($11,250 in 2026). Use them if the plan allows.

For a lot of people this is when the paycheck dies and tax brackets suddenly have empty space. That is the point of the brokerage: spend from it while you choose how much extra taxable income to create via Roth conversions, IRA withdrawals, or gain harvesting.

A $0-tax year is not a win if a fat traditional IRA keeps growing into future Social Security + RMD years at unknown rates. Empty low brackets now are a wasted window.
ACA marketplace (pre-65): extra MAGI can raise premiums / cut subsidies. Every conversion has two prices — the tax bill and the health-insurance bill. Run both. Sometimes keep the subsidy; often the long-term tax save still wins. Do not convert blind. See the health insurance guide for the 2026 subsidy cliff.
Social Security at 62 is available, but claiming early occupies bracket space and shrinks later benefits. Delaying the higher earner also protects the survivor benefit. Claiming is a tax-timeline decision, not just a cash-flow decision.
Age 63: Medicare IRMAA generally uses a two-year MAGI lookback. Income at 63 shows up in premiums at 65. A conversion at 65 shows up at 67. Cross IRMAA lines on purpose or not at all.
If you already give to charity: a donor-advised fund contribution in the same year as a large conversion can offset some of the extra income (itemizing still has to beat the standard deduction — run it).

By 65 you want: a smaller pre-tax pile than you started with, several years of used-on-purpose brackets, and a Social Security claim plan — not a vibe.

65–70 — Heavy lifting

Marketplace subsidies go away. Medicare has IRMAA instead, which for many people is a wider conversion lane than ACA was. If the paycheck is gone, Social Security is delayed, and RMDs have not started, this is often the best conversion window of your life.

Fill lower brackets with Roth conversions on purpose.
IRMAA is a cliff-ish surcharge, not a reason to freeze. Sometimes paying more Part B/D for two years is cheaper than dragging a huge IRA into RMDs and the widow’s penalty. Calculate the trade, then cross the line or don’t.
Each year you delay Social Security is another year of conversion space. Once benefits start, that space is occupied.
Married filing jointly brackets are a temporary asset. The survivor often inherits the same accounts and files single (“widow’s penalty”). Converting while both are alive can shrink the tax bomb the survivor inherits. Roth withdrawals do not land on the 1040 the same way traditional IRA RMDs do.

Mistake: thinking tax planning ended at 65. For a lot of retirees it is just getting started.

Default Medicare stack on this site if you will actually use Medicare and want nationwide / RV flexibility: Original Medicare A+B + Medigap Plan G + standalone Part D. Details: Advantage vs Medigap and why switching later is hard.

70–75 — Manage what now arrives on its own

Social Security is (or soon will be) on the return. RMDs are coming. You spent earlier blocks choosing income. Now more of it is mandatory.

QCDs at 70½: send IRA money straight to a 501(c)(3). It is generally excluded from taxable income and, once RMDs begin, can count toward the RMD. That is cleaner than taking a taxable distribution, paying tax, then writing a check. QCDs are an IRA move — not a “from the 401(k) checking account” move.
If you do not need the RMD to live: do not let it rot in cash. Pay the tax, reinvest the rest in the taxable brokerage on purpose.
Keep projecting MAGI vs IRMAA every year. SS + RMDs + conversions stack.
Heirs: inherited traditional IRAs generally dump taxable income over a 10-year window. Qualified Roth distributions do not. This is the last chance to leave a cleaner mix, not to recreate the 60-year-old conversion window you already missed.

Pipps thoughts

If you are still on W-2 in 2026 with wages over $150k at your employer, catch-ups in a Roth-capable plan are supposed to go Roth. That is not optional taste — it is the 2026 rule. Confirm how the employer’s plan implements it.
The 55–60 job is the one in front of you while you are still employed: stop the all-pre-tax habit if the RMD projection is fat, and make sure brokerage exists as a 60–70 bridge.
Leaving before 65 means ACA MAGI is a conversion governor until Medicare. Do not blow subsidies by converting “because someone on YouTube said fill the 22% bracket” without pricing healthcare.
Rule of 55 only helps if you need employer 401(k) cash before 59½ and you have not rolled it to an IRA. If the brokerage bridge is funded, you may not need it.
If moving, Idaho vs California tax is one example of a real lever — model the new state’s rates before you lock a conversion year to the old state’s.

Do this once a year (Julia’s homework, stripped)

Write the block you are in (and Alicia’s, if different).
List the three jobs for that block: done / in progress / untouched.
Look one block back (what never got built?) and one block ahead (IRMAA lookback, Medicare, SS, RMDs).
Update balances by tax type, SS estimates, spending, and expected MAGI. Decide what must happen before December 31.

One page. Not a 40-tab spreadsheet. The tax code already printed the calendar — the only job is using each window before it closes.

Sources

Added Oct 31, 2026 · rewrite of a 14-minute tax-window briefing · confirm current-year IRS/Medicare figures before you convert a dollar