Can you retire at 45 with $1M?

With $1M at age 45, you can safely spend about $36,000/year after tax ($3,000/month) without running out over a ~50-year retirement — roughly a 3.6% withdrawal rate, below the classic 4% rule — a longer horizon needs a more conservative rate. Whether that's enough comes down to your lifestyle; here's the full picture.

How long $1M lasts at different spending levels

The 4% rule is a starting point, not a guarantee — especially retiring at 45, when the money may need to last 50+ years. Here's what $1M supports, spending from age 45 to 95 at a 6% nominal return and 3% inflation:

Why the answer isn't just $1M × 4%

A back-of-envelope "$1M × 4% = $40,000" overstates what you can safely spend at 45, for two reasons this projection captures:

• Taxes. A dollar in a traditional 401(k) or IRA is taxed as ordinary income on the way out; taxable-brokerage gains are taxed too. Only Roth and cash are tax-free. So the safe spendable figure ($36,000) sits below the headline 4% draw.
• A long horizon. Retiring at 45 can mean 50+ years in retirement. The 4% rule was calibrated to about 30 years — stretch it further and a lower rate (nearer 3.6% here) is what actually survives a bad early market.

The portfolio, year by year

Spending the sustainable $36,000/yr from $1M at age 45, here's how the portfolio holds up in today's dollars (inflation-adjusted, so it reflects real spending power):

Assumptions: single filer, TX (no state income tax), 60% taxable / 30% traditional / 10% Roth split, 6% nominal return, 3% inflation, no Social Security. Add Social Security, a pension, part-time income, or a spouse in the calculator and the safe number rises — often substantially.

Building the bridge from 45 to 59½ and beyond

At 45 the task is spanning about 15 years to the penalty-free age of 59½, then a much longer wait until Social Security, which cannot be claimed before 62 and is decades away for you. The strongest bridges combine a Roth conversion ladder, whose converted amounts become available penalty-free five years after each conversion, with taxable-account balances and Roth contributions that can be withdrawn at any time.

Health coverage is the other early hurdle. ACA marketplace subsidies are calculated from MAGI, so pairing low taxable withdrawals with Roth or basis-heavy spending can hold premiums down until Medicare begins at 65. COBRA can cover a short gap right after leaving work, but generally lasts only up to 18 months.

Finally, the first decade matters most. A poor run of returns while you are drawing down does far more lasting damage than the same run later, so a cash or bond buffer that lets you avoid selling into a downturn is worth more than chasing a slightly higher average return.

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