Okay, fellow mustachians, I need your expert advice on where I should be allocating my savings. The goal is to have accessible monthly income, later, in "early retirement" while still maximizing available tax incentives, now. I recognize that I will be “retired” many years prior to being able to receive funds from 401k, pension, SSA, etc., so the way I’m looking at it, what’s already in our respective 401k accounts (combined ~$225k) will be left untouched until 59.5 or later. It would be nice if Social Security provides some additional income at age 65, but I’m not counting on that whatsoever.

I'm 37, married, and plan/project to be FI w/in 9 years from today. I'm debt-free except for the mortgage on my house (~$138k, 3% interest), which is where I'm focusing a significant amount of my attention for the next 3 years, at which point it will be completely paid off (the subsequent 6 years will be all savings).

Post-tax (net) monthly income is as follows -

Salary (self and spouse combined): 8100

Other non-taxable income: 1900

Savings (currently) as follows -

401(k) self: 5% (just enough to maximize employer matching)

401(k) spouse: N/A (her employer contributes a percentage of her salary, regardless of whether she contributes)

Vanguard Index VTSMX: $3000 (plan to switch to VTSAX). Once house is paid off in 3 years, this amount will increase to $7000 (the current $3k plus the $4k we pay monthly in principal + interest + prepayment right now).

Assuming a return rate of 5% on the Vanguard funds, estimate having the following in 9 years:

$700k + in Index Funds

$200k + in Home Equity

Using the “4% method,” the income generated on investments would be $28k/yr, so adding that to the $22.8k/yr of nontaxable income I already receive (and will continue to receive in perpetuity), our annual anticipated combined income of $50.8k should cover our anticipated (i.e. minus current mortgage) expenses of $48k/yr.

I should also state that we are assuming the following as a “cushion” for later life:

Above mentioned 401k accounts (not to be used until age 59.5 or later).

Also at age 58, I will start receiving a monthly pension from my current employer, which I estimate to be valued at (in today’s dollars) ~$1500

Given the above, is it wise to throw all my eggs in the index fund basket at this point in lieu of higher contributions to the 401k (or IRA or rIRA)? My reasoning is that I won’t be able to draw any income from the latter between ages 46 (anticipated retirement) and 59.5. At the same time, I recognize that I will pay taxes on the stock investments now, while I am at a disadvantageous tax rate, due to my salary. I want to ensure that I will have sufficient, AVAILABLE income during those years from 46-59.5, so I'm willing to pay some additional taxes if that's what's necessary to get there from here.

I have tried to include all relevant info, but let me know if I have overlooked anything.

Thank you in advance for your feedback!