WhenIm64 is your guide through every critical decision — Medicare enrollment, Social Security timing, Roth conversions, and RMDs. With reminders when it's time to act, and course corrections when life changes.
Built for people navigating retirement who want clear guidance, not another calculator.
Explore a sample couple's complete retirement plan. No account, no email, no personal information.
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Most retirement apps show you a model. WhenIm64 tells you what to do next.

Your dashboard surfaces what needs attention now — Medicare enrollment windows, quarterly tax payments, Roth conversion installments — so nothing slips through the cracks.
Retirement Dashboard →
The milestone timeline shows where you are, what's coming, and the strategic windows — like the Tax Valley — that define your plan.
My Plan →
Deep, personalized guidance on Medicare, Social Security, and tax strategy — not generic advice, but answers grounded in your specific ages, income, and accounts.
Healthcare Guide →Every screen is live in the demo. Click any one to explore — no sign-up needed.
Ask plain-English questions and get answers grounded in your specific numbers — ages, income, accounts, state, and retirement timeline.
AI Retirement Assistant
Using James & Linda's plan data
As the higher earner, waiting to 70 gives you the largest benefit (about $64,800/yr) and sets the survivor benefit: if you die first, Linda keeps your larger check for life.
Her own delay pays off only while you're both alive, so it's worth about a third as much as yours. Run through your whole plan (taxes, Roth conversions, RMDs, IRMAA), this pair still leaves your heirs the most: about $4.2M in today's dollars.
What would change it: if either of you expects to live only to about 78, Linda claiming at 63 comes out ahead.
AI Retirement Assistant
Using James & Linda's plan data
Here's a category-by-category breakdown for a married couple in Austin, TX. Adjusted for local cost of living — Texas has no state income tax but higher property insurance and utilities.
If you were born in 1960 or later and plan to retire before claiming Social Security, you're sitting on one of the most valuable — and underused — tax opportunities in retirement planning.
It's called the Tax Valley.
Between the day you retire and the day your Required Minimum Distributions begin at age 75, there's a window where your taxable income drops dramatically. No W-2 income. No Social Security yet. No forced IRA withdrawals. For many people born in 1960 or later, this window is 10 years or longer.
Every dollar you convert from your IRA to Roth during this window is taxed at your lowest rate — often the 12% or 22% bracket. Leave it unconverted, and RMDs will force those withdrawals later at whatever bracket you're in then, with no choice about timing.
SECURE 2.0 pushed RMD age to 75 for anyone born in 1960 or later. Combined with later Full Retirement Ages, the Tax Valley has quietly become one of the largest planning opportunities a generation of retirees has ever had — and most financial apps don't explain it clearly.
Early retiree profile · Tax Valley spans retirement date to RMD start at age 75
WhenIm64 shows you exactly how wide your window is, how much to convert each year, and when the window closes.
Traditional retirement planning asks you to predict the future accurately.WhenIm64 doesn't.
Markets move. Expenses shift. Plans change. A retirement plan that gets updated quarterly and course-corrected as life happens will outperform a perfectly modeled plan that gets opened once and forgotten.
That's why WhenIm64 is built around a quarterly review — a short walkthrough that keeps your plan honest without requiring you to rebuild it from scratch. Each quarter, the guide checks in: are you on track, has anything changed, is there an action item coming up?
When something does fall short, WhenIm64 calculates five concrete ways to close the gap — additional savings, expense adjustment, delayed retirement, real estate equity, or part-time income — so you're never staring at a red warning with no path forward.
Not a set-it-and-forget-it calculator. A coach that checks in.

Our Story
WhenIm64 was created by a recently retired engineer who was blindsided by the complexity of Medicare enrollment, IRMAA surcharges, and retirement tax planning.
Between an inbox flooded with 200+ Medicare mailers and hour-long hold times with the SSA — including a representative who had “never heard of IRMAA” — the decision was made to build the tool that should have existed all along.
WhenIm64 is the result: a clear, honest guide through the financial decisions that define retirement. Built for people who deserve better than junk mail and hold music.
It covers about 80% of what a retirement specialist would cover, at a fraction of the cost — and it tells you clearly when your situation calls for professional advice.
From the blog

Rolling your old 401(k) into an IRA gives you control, but it can cost you the backdoor Roth and the Rule of 55. How the answer changes over a career.
6 min read

Your Social Security statement shows nine estimates. Your plan needs one. What the age-70 number assumes, why it can drop after you retire, and how COLAs fit in.
4 min read

Taking a brand-name drug? In 728 drug lists, the lowest-premium Part D plan was usually the best and never cost more than about $400. How to read the labels.
7 min read
Most retirees leave significant money on the table from missed deadlines, early Social Security claims, and avoidable taxes. WhenIm64 makes the right answer clear — and tells you when to act on it.
Your dashboard surfaces what needs attention now — Medicare enrollment deadlines, quarterly tax payments, Roth conversion opportunities, and plan funding alerts — with email reminders so nothing slips.
Fill your tax bracket intelligently each year. Visualize the full projection — IRA balance, Roth growth, RMDs, and IRMAA surcharges — across your entire retirement.
See what each claiming age is worth across your whole plan — taxes, Roth conversions, RMDs, IRMAA and the survivor benefit — and ask what-ifs like retiring a year later.
Compare Medigap and Medicare Advantage, rank Part D plans by total cost for your drugs, plan coverage before 65, and get a long-term care strategy from your projected estate.
In retirement there's no paycheck withholding. Know your federal and state estimated tax payments each quarter so you never face an underpayment penalty.
Required Minimum Distributions begin at 73 or 75 (depending on your birth year) and rise every year. Model the impact on your tax bracket and see how Roth conversions reduce future RMD burdens.
| Feature | WhenIm64 Free | WhenIm64 Premium | Boldin (NewRetirement) | ProjectionLab | Empower |
|---|---|---|---|---|---|
| Price | Free forever | $99 / year | Free / $168 per year | Free* / $129 per year | Free |
| Designed for non-experts | Steep learning curve | Steep learning curve | |||
| Turn-by-turn guidance through every retirement decision | |||||
| Proactive alerts when it’s time to act | Up to 5 alerts free | ||||
| Email reminders so nothing slips | |||||
| Quarterly course-correction | |||||
| Social Security timing | Social Security Explorer | ||||
| Roth conversion optimizer | |||||
| Tax Valley guidance | |||||
| IRMAA management | |||||
| Medicare planning & enrollment guidance | Cost estimates only | ||||
| RMD planning | Basic only | ||||
| Estimated quarterly taxes | |||||
| AI retirement assistant | Limited free, unlimited paid | ||||
| AI questions | Up to 10 a day | Unlimited | Limited free | ||
| Brokerage connection | |||||
| Data saved between sessions | Free tier does not save data |
Start free — upgrade when you want the full experience.
Everything you need to start your retirement journey.
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For investors who want the full picture.
Free accounts show ads; Premium removes them and lifts the AI limits. Your data is never sold. Premium is priced to cover its actual costs: AI processing and brokerage data access.
Free to start. No credit card. Takes about 10 minutes to set up your full retirement profile — and the guide goes to work immediately.
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