I am 35 years old living in California,

Answer

I'll read the relevant reference files first, then pull the current IS statutory figures.

Now I'll pull the current-year IS figures for 401(k), IA, and HSA.

I need the HSA contribution limits and oth IA income phase-outs. Let me get those.

Here's the 2026 IS framework you asked for, side by side. Nothing below is a recommendation on which to fund first or how to split — the comparison only lays out the rules.

## 1. Side-by-side: Traditional 401(k) · oth IA · HSA

| ule | Traditional 401(k) | oth IA | HSA (HDHP-required) |
| --- | --- | --- | --- |
| **Who can fund it** | Employee of an employer that sponsors a 401(k) plan | Anyone with earned income (or married to someone with earned income), within IS MAGI limits | Anyone enrolled in an IS-qualified HDHP, not enrolled in Medicare, not claimed as a dependent |
| **2026 contribution limit (under 50)** | Employee elective deferral: **$24,500** · Total annual additions (employee + employer + after-tax): $72,000 · Plan-compensation cap counted: $360,000 | **$7,500** across all IAs (oth + traditional combined) | **$4,400** self-only HDHP · **$8,750** family HDHP (includes employer contributions) |
| **2026 catch-up (age 50+)** | **$8,000** standard (so $32,500 total deferral) · **$11,250** if age 60–63 (SECUE 2.0) | **$1,100** ($8,600 total across IAs) | **$1,000** (55+), separate from the $4,400 / $8,750 |
| **Tax going in** | Employee elective deferrals are pre-tax (excluded from federal taxable income) | "You cannot deduct contributions to a oth IA" — paid with after-tax dollars | Contributions are an above-the-line deduction on Form 8889 |
| **Tax on growth** | Not taxed while it stays in the plan | Not taxed as it grows | Not taxed as it grows |
| **Tax coming out** | "Distributions from your 401(k) plan are taxable unless the amounts are rolled over" — taxed as ordinary income | "If you satisfy the requirements, qualified distributions are tax-free" | Tax-free if used for qualified medical expenses (otherwise taxable + 20% additional tax if under 65) |
| **When you can take it out** | Per IS: distributions of elective deferrals generally cannot be made until age 59½, severance from employment, death, disability, plan termination, or financial hardship. equired minimum distributions apply later. | Contributions can be withdrawn any time tax- and penalty-free (it's your after-tax money). Earnings are tax-free only on a "qualified distribution" (IS-defined; this page links Pub 590-A / 590-B for the full definition). No MDs during the owner's lifetime. | No withdrawal penalty for qualified medical expenses at any age. After 65, non-medical withdrawals are taxed as ordinary income (no 20% penalty). |

**Sources (all read 2026-09-17):**
- $24,500 / $7,500 / $8,000 / $11,250 / $1,100 / $72,000 / $360,000 — IS News elease I-2025-111 · https://www.irs.gov/newsroom/401k-limit-increases-to-24500-for-2026-ira-limit-increases-to-7500
- Same 2026 figures, table form — IS "COLA increases for dollar limitations on benefits and contributions" · https://www.irs.gov/retirement-plans/cola-increases-for-dollar-limitations-on-benefits-and-contributions
- oth IA contribution limit + "You cannot deduct contributions… qualified distributions are tax-free" — https://www.irs.gov/retirement-plans/roth-iras
- oth IA combined annual limit $7,500 / $8,600 — https://www.irs.gov/retirement-plans/plan-participant-employee/retirement-topics-ira-contribution-limits
- 401(k) distribution triggers (age 59½, severance, death, disability, plan termination, hardship) and "taxable unless rolled over" — https://www.irs.gov/retirement-plans/plan-participant-employee/401k-resource-guide-plan-participants-general-distribution-rules
- HSA structure, Form 8889, qualified medical expenses — IS Publication 969 · https://www.irs.gov/publications/p969
- 2026 HSA dollar limits $4,400 / $8,750 — IS Notice 2026-05 · https://www.irs.gov/pub/irs-drop/n-26-05.pdf (page returns PDF; the 2026 figures appear in the search snippet of this same IS UL)

**Three facts that flip which one leans heavier for you** (instead of a ranking):

1. **Time until you touch it.** All three are designed for long horizons. The HSA is the most restrictive if you spend it on non-medical things before 65 (income tax + 20% additional tax).
2. **Today's marginal bracket vs. expected bracket at withdrawal.** Traditional 401(k) deductions are worth more in high-bracket years; oth withdrawals are tax-free regardless of future brackets.
3. **Match + HDHP status.** A 401(k) match is a separate, immediate return on the first 6% of pay. An HSA only stays open while you're in an HDHP and not on Medicare — losing either closes that door.

## 2. Asset class shape

Three rows of inputs drive which bracket fits: **how long until you need the money**, **how much you can afford to lose in a bad year**, and whether your income is steady. I don't have your answers to those — pick the row and column that matches your situation.

| Time horizon | Steady (cash / bonds / equities) | Progressive (cash / bonds / equities) |
| --- | --- | --- |
| Under 2 years | 80–100 / 0–20 / 0–5 | 60–90 / 10–30 / 0–20 |
| 2–5 years | 30–60 / 30–50 / 10–30 | 15–40 / 20–40 / 30–55 |
| 5+ years | 10–25 / 25–45 / 35–60 | 5–15 / 15–35 / 50–80 |

anges, not points. Each row's three numbers must add to 100.

**You're closer to the steady column if:** you can name a near-term use for the money (house down payment in 18 months, wedding, emergency reserve), your income is single-source or variable, or "what if this drops 30% next year" keeps you up at night. Bonds absorb some of that drawdown; cash gives you the option not to sell into a bad month.

**You're closer to the progressive column if:** you won't need this for 5+ years, your job is stable, and you can leave the money alone through a bad year without changing your plans. The trade-off is real — equities can lose a third of their value in a 12-month stretch and not recover for years.

**Mechanics to verify yourself, not me:** the funds/ETFs you pick decide the actual exposure, fees, and tax character inside each account. The shape above is the category split; what you buy inside it is a separate choice. For the 401(k) menu, the lineup and any employer-selected default fund is set by your plan — read the plan's summary plan description (SPD) for what's actually available.

Source for the shape: Investor.gov · "Asset allocation" · https://www.investor.gov/introduction-investing/getting-started/asset-allocation · accessed 2026-09-17.

## 3. A few notes before you act on this

- **Your "around 4.5%" HYSA rate** is from your bank's app — that rate is marketing copy until you confirm it on the bank's official deposit-rate disclosure page. Worth a 60-second check, because that number decides whether the $50k is already doing the "cash" job above or whether it can move into the bond/equity rows.
- **California state income tax** is a separate question from the IS rules above. California does not generally conform to the federal HSA deduction; confirm on the CA FTB site if state treatment matters to your decision.
- **"What to buy inside each account"** is not answered here. That comes down to your plan's 401(k) menu, your HSA custodian's investment window, and your IA broker's fund list — none of which I have this turn.
- **Buying cadence** (lump sum vs. spread over months) is your call; the brackets above describe the target mix, not how fast to get there.