What Is a Comprehensive Retirement Financial Plan?

Most people approaching retirement have done a pretty good job saving money. They’ve worked hard, set money aside, and built up a nest egg they feel good about. But when I sit down with someone for the first time and start asking questions, it becomes clear very quickly that having money saved and having a comprehensive retirement plan are two very different things.
A comprehensive retirement financial plan addresses seven distinct areas of your financial life — all of which must work together:

1. Social Security – When and how to file for maximum benefit
2. Medicare – Choosing the right coverage and avoiding costly surcharges
3. Long-Term Care – Planning for the risk of needing future care
4. IRAs and 401(k)s – Managing accounts, RMDs, and Roth conversions
5. Income and Investments – Building reliable income that lasts
6. Estate Planning – Protecting your spouse and your legacy
7. Taxes – Minimizing your tax burden throughout retirement

Most people have thought carefully about one or two of these. Very few have looked at how all seven interact with each other — and that’s where costly mistakes happen.

Why All 7 Areas of Retirement Planning Must Work Together

Here is the key insight that most people miss: every decision you make in one area of retirement planning affects the others.

• The age you file for Social Security affects your tax bracket
• Your IRA balance determines what you pay for Medicare
• Your estate plan changes completely when one spouse passes away
• Roth conversions impact your Medicare premiums and long-term tax liability

These connections are not obvious. Missing them can cost you tens of thousands of dollars over the course of retirement — sometimes far more.

Introducing Tom and Susan: A Real Retirement Planning Case Study

To show you exactly what this planning process looks like in practice, my colleague Tom Griffith and I created an 8-part video series built around a real couple: Tom and Susan.
Tom is a physician retiring at age 68. Susan, 66, spent most of her career raising their children and will rely largely on Tom’s earnings record for Social Security. They came to us after watching our videos for several years, financially comfortable but carrying unresolved questions they had never fully addressed.
Their situation will be familiar to many people approaching retirement:

They had made some decisions on their own but never looked at the full picture
They assumed they had enough money to handle anything — including long-term care
They had never done a formal, written financial plan

Sound familiar? Here is what we found when we dug in.

Social Security: Why Tom Changed His Filing Strategy

Tom came in planning to delay Social Security until age 70 to maximize his monthly benefit. That’s a reasonable instinct — but it isn’t always the right answer.
After analyzing Susan’s full retirement age and running forward projections, we recommended Tom file at age 68 instead of waiting until 70. Paired with annuity income to supplement the difference, this created a more stable, reliable income stream — one that wasn’t entirely dependent on market performance.
Key takeaway: Delaying Social Security until 70 is not automatically the best strategy. The right answer depends on your spouse’s benefit, your other income sources, your health, and your overall plan.

Medicare: How to Appeal IRMAA and Lower Your Premiums

Because Tom was a high-earning physician, he and Susan were paying substantial IRMAA surcharges — the additional Medicare premiums the government charges people above certain income thresholds.
What many people don’t know is that when you retire and your income drops, you can file an IRMAA appeal and have those surcharges reduced or eliminated. We walked Tom and Susan through exactly how to do that — a process that will save them a meaningful amount every single year in retirement.
We also worked their Roth conversion strategy around IRMAA thresholds, converting just enough each year to stay below the level that would trigger higher Medicare premiums.
Key takeaway: If your income drops due to retirement or another life event, you may qualify for an IRMAA appeal. Don’t assume your Medicare premium is fixed.

Long-Term Care: The Risk Most People Underestimate

Long-term care was the most emotionally charged conversation we had with Tom and Susan. Both of their mothers had experienced Alzheimer’s disease. They knew firsthand how expensive and disruptive long-term care can be — and they still hadn’t purchased a policy.
Tom’s reasoning was common: “We have enough money. We’ll just pay for it.”
After reviewing their IRA balances and running the projections, we recommended using a portion of their IRA funds to purchase long-term care insurance. This single decision removed their largest financial risk in retirement and gave their children peace of mind.
Key takeaway: Self-insuring for long-term care sounds reasonable until you model the actual cost. A long-term care policy, funded the right way, can protect your assets and your family.

IRA and Roth Conversion Strategy: Reducing Future Taxes

Tom and Susan had a significant amount in traditional IRAs — money that would eventually be subject to Required Minimum Distributions (RMDs). Left unaddressed, those RMDs could push them into higher tax brackets and trigger higher Medicare premiums later in retirement.
Our recommendation: strategic Roth conversions, calibrated to stay just below the IRMAA threshold each year. By gradually moving money from traditional IRAs into tax-free Roth accounts now, they can:

Reduce future RMD amounts
Lower their long-term tax liability
Leave tax-free money to their children and grandchildren
Stay below Medicare’s income surcharge thresholds

Key takeaway: Roth conversions are not one-size-fits-all. The right amount depends on your income, your Medicare costs, your tax bracket, and your estate goals — all working together.

Income and Investment Planning: Building a Floor, Then Growing the Rest

Because Tom and Susan had built a reliable income foundation through Social Security and annuities, they could afford to take more risk with the rest of their portfolio.
Rather than sitting in a conservative 55/45 allocation out of fear of market volatility, we recommended moving to an 80/20 equity-heavy portfolio with the money they intend to grow and leave as a legacy. The income floor gave them the confidence to invest more aggressively with the portion that doesn’t need to fund their lifestyle.
Key takeaway: When your income needs are covered by guaranteed sources, you can afford to be more growth-oriented with the rest — potentially leaving significantly more to your heirs.

Estate Planning: Planning for the Surviving Spouse

Estate planning isn’t just about what happens after you’re gone. It’s about what happens to the spouse who outlives the other — and that picture changes dramatically at the first death.
When a spouse passes away:

The survivor moves from married filing jointly to single taxpayer status — meaning higher tax rates on the same income
IRMAA thresholds are cut in half, potentially doubling Medicare surcharges
One Social Security check disappears — typically the smaller of the two

Tom and Susan wanted to make sure the surviving spouse would be financially secure and that there would still be something meaningful left for their children and grandchildren. The plan accounts for all of it.
Key takeaway: Estate planning for married couples must address the financial impact on the surviving spouse — not just the transfer of assets after both are gone.

Frequently Asked Questions About Retirement Financial Planning

What does a comprehensive retirement plan cost?
At Cardinal Advisors, a full written financial plan costs $1,000. The initial call to determine if we’re a good fit is always free.
When is the right time to do a retirement financial plan?
The ideal time is 5–10 years before retirement, but it’s never too late. We work with clients in their late 50s, 60s, and well into their 70s. If you haven’t done a formal plan, now is the right time.
What is IRMAA and how does it affect my Medicare premiums?
IRMAA stands for Income-Related Monthly Adjustment Amount. It is a surcharge added to your Medicare Part B and Part D premiums if your income exceeds certain thresholds. It can be appealed when your income drops.
What is a Roth conversion and should I do one?
A Roth conversion moves money from a traditional IRA (taxable) into a Roth IRA (tax-free). Whether it makes sense depends on your current tax rate, future RMDs, Medicare costs, and estate goals. It is a highly individual decision.
What software do you use to build retirement plans?
We use Right Capital, a professional financial planning platform that allows us to model Social Security scenarios, Roth conversions, tax projections, Monte Carlo simulations, and more.

Watch the Full 8-Part Retirement Planning Video Series
Episode 1 — available now — gives you the complete overview of Tom and Susan’s plan. The next seven episodes go deep on each individual topic:

Episode 2: Social Security
Episode 3: Medicare
Episode 4: Long-Term Care
Episode 5: IRAs and 401(k)s
Episode 6: Income and Investments
Episode 7: Estate Planning
Episode 8: Taxes

Ready to Build Your Own Retirement Plan?

If you’ve read this far and found yourself nodding along — wondering whether your own retirement picture is as complete as it should be — reach out. We work with people across the country who are approaching or already in retirement and want to make sure they haven’t missed anything.
The first conversation is always free. A full written plan starts at $1,000.