Replay

Tax Planning That Moves the Needle · June 23, 2026. Watch the recording ↓ Watch the recording ↓

Recording June 23, 2026 · 64 minutes · Watch on demand

Tax Planning That Moves the Needle: Roth Conversions, IRMAA, and the Decisions Advisors Miss.

Watch Justin Fitzpatrick work the multi-year tax decisions that actually change a retiree's lifetime bill: sizing Roth conversions against the brackets, positioning income around IRMAA before it bites, and the withdrawal-sequencing moves a filing-season review never catches. Worked through live in Income Lab.

Justin Fitzpatrick
Justin Fitzpatrick, PhD, CFA, CFP® President & Co-Founder · Income Lab
Tax Planning That Moves the Needle masterclass thumbnail: Justin Fitzpatrick presenting in Income Lab

Recorded live on June 23, 2026 · 64 minutes · The last several minutes are live Q&A.

Most tax planning happens at filing time. The needle moves earlier.

The biggest tax wins in retirement come from multi-year positioning, not deductions in April. Justin walked through the decisions that actually change lifetime tax, live in Income Lab.

Roth conversions, sized to the plan

When a conversion window opens, how to size it against the brackets a client will actually occupy, and how a multi-year strategy compounds across retirement.

IRMAA, before it bites

Why Medicare premiums respond to income from two years earlier, and how to position clients around the IRMAA thresholds instead of discovering them on a bill.

The decisions advisors miss

Withdrawal sequencing, bracket management, and the timing moves that never show up in a return-season review. Where Tax Lab surfaces them.

The last several minutes are Q&A. This page is the permanent recording, open to share with colleagues.

The biggest tax wins happen years before the return is filed

Most tax conversations with clients happen in the spring, when the numbers are already fixed and the only question left is how to report them. Justin opened the session by reframing where the leverage actually sits. By filing season, the decisions that move lifetime tax, when to convert, how much, which accounts to draw from, and how to keep income under the thresholds that trigger surcharges, have already been made or quietly missed. The work that moves the needle is multi-year positioning done in advance, not deductions found in April. The session walked through what that positioning looks like when you can see its effect on the whole plan at once, rather than one tax year at a time.

Roth conversions, sized to the plan

A Roth conversion is one of the few levers that lets an advisor decide, deliberately, how much income to recognize in a given year. The skill is in the sizing. Convert too little and you leave low-bracket room unused; convert too much and you spill into a higher bracket, or trip a Medicare surcharge two years out that costs more than the conversion saved. Justin showed how to size a conversion against the brackets a client will actually occupy over the rest of retirement, not just this year's, so the decision compounds correctly across the plan. The window that opens in the gap between retirement and the start of required distributions is often the most valuable stretch a plan has, and the value comes from filling brackets on purpose across several of those years rather than reacting one return at a time. The full framework is in the Roth conversion strategy guide.

IRMAA: the surcharge that responds to income from two years ago

IRMAA, the income-related monthly adjustment amount, is the surcharge added to a client's Medicare Part B and Part D premiums once modified adjusted gross income crosses a threshold. The detail that catches people is the timing. The premium a client pays in a given year is set by the income they reported two years earlier, so a large Roth conversion or capital gain today does not raise this year's Medicare premium. It raises the premium two years out, which is exactly when a client who was not warned will be surprised by it. Because the thresholds are cliffs rather than gradual phase-ins, a single dollar of income over a bracket line can add hundreds of dollars in annual surcharge per spouse. The planning move is to position income around those thresholds on purpose, with the two-year lag built into the timeline, so a conversion that makes sense on its own is not undone by a surcharge later. The IRMAA brackets guide has the current thresholds.

The decisions advisors miss

The session's title points at the moves that rarely show up in a return-season review because they are not about the current year at all. Withdrawal sequencing, which accounts a client draws from and in what order, changes the trajectory of taxable income for the rest of the plan. Bracket management across multiple years turns a string of unremarkable returns into a deliberately lower lifetime bill. Coordinating conversions, capital gains, and the start of Social Security and required distributions so they do not collide in the same years is the kind of work that only becomes visible when you can model the whole horizon at once. None of it is exotic. It gets missed because most planning tools show one year at a time, and the needle moves across many.

What it looked like live in Income Lab

The back half of the session moved into the software, where Justin worked the decisions live in Tax Lab. He showed a multi-year view of a client's income and tax picture, sized a Roth conversion against the brackets and the IRMAA thresholds on the same screen, and traced how a change in one year flowed through to the spending number, the surcharges, and the lifetime tax total. The point of working it live, rather than on slides, was to show that the analysis is inspectable: an advisor can see where every dollar of recognized income lands and what it costs or saves, which is what makes the multi-year case credible to a client. He also showed where Penny, the Income Lab paraplanner, surfaces positioning moves an advisor might otherwise have to go hunting for. For advisors who are new to the platform, the section below has the fastest way to get up to speed, and a walkthrough on your own client numbers is one click away.

Questions advisors asked, answered.

From the live session, with a little more detail than there was time for on the call.

What does IRMAA stand for, and how does it affect a retirement plan?

IRMAA is the income-related monthly adjustment amount, a surcharge added to a client's Medicare Part B and Part D premiums once modified adjusted gross income crosses a threshold. It is driven by the income a client reported two years earlier, and because the thresholds are cliffs, crossing one by a dollar can add hundreds of dollars a year. Income Lab includes the surcharge in a plan's total tax picture, so it is visible while you are still positioning income rather than after it shows up on a premium notice.

Can a client appeal IRMAA, and does a Roth conversion qualify?

A client can ask Social Security to recalculate IRMAA after a life-changing event, using Form SSA-44. Retiring or otherwise stopping work is one of the recognized life-changing events and is commonly approved. A Roth conversion on its own is not a life-changing event, so it does not generally qualify for an appeal. The practical takeaway from the session is to plan conversions around the two-year lag in the first place, rather than counting on an appeal to undo a surcharge after the fact.

How do you size a Roth conversion so it doesn't trigger a higher bracket or a surcharge?

You size it against the brackets the client will occupy over the rest of retirement and against the IRMAA thresholds two years out, not just against this year's return. The goal is to fill lower brackets on purpose across several years while leaving room before the next cliff. Modeling the conversion in the plan shows its effect on lifetime tax, the spending number, and future Medicare premiums in one place, so the right size is a decision you can see rather than a guess.

Does the spending number include Social Security, pensions, and other guaranteed income?

Yes. The retirement paycheck is the combined amount a household can spend from every source, including Social Security, pensions, and portfolio withdrawals, not just what comes out of the portfolio. Taxes, including any IRMAA surcharge, are accounted for in that number, so it reflects what a client can actually spend after the tax picture is settled.

Why can the mix of taxable, tax-deferred, and tax-free assets change so much between two plans?

Because the optimal positioning depends on the income target. A plan built around a lower net spending level recognizes income differently than one targeting a higher level, so the ideal balance of taxable, tax-deferred, and Roth assets shifts with it. The software solves for the mix given the specifics of the plan, rather than applying a fixed rule of thumb, which is why two plans that look similar on the surface can land on different answers.

Will I get the slides and recording, and can I share this?

Yes. This page is the permanent recording of the June 23, 2026 session, and registrants also received the slides and recording by email. You are welcome to share this page with colleagues; the recording is open, with no second registration required. You can find every masterclass recording, and register for upcoming sessions, on the masterclass series hub.

New to Income Lab? Here's how to get up to speed.

A few people on the live call were brand new to the platform. If that's you, this is the fastest path from "I have a login" to "I can run the tax-positioning conversation."

  1. Browse the help center at help.incomelaboratory.com for step-by-step articles and short how-to videos on every part of the software.
  2. Book a one-on-one training with an account manager who will tailor the session to the case you're working on. It's the single fastest way to get productive.
  3. Working a live case and need help today? Email [email protected] and ask for a new-user training session.

Want a one-on-one walkthrough scheduled with the team?

Schedule a training →
Your Host

Justin Fitzpatrick, PhD, CFA, CFP®

President & Co-Founder · Income Lab

Justin Fitzpatrick
PhD, MIT CFA® Charterholder CFP®

Justin co-founded Income Lab in 2018 to close a gap he saw across the industry: advisors lacked a way to give retirees a concrete, trustworthy answer to "how much can I spend?" He built the risk-based guardrails methodology now used by thousands of advisors, replacing probability-of-success scores with a specific spending number and dynamic adjustment rules that update automatically as conditions change.

Before Income Lab, Justin spent a decade at Jackson leading advanced planning teams and developing financial technology. He also spent seven years in academia, teaching at MIT, Harvard, Queen Mary University of London, and UCLA. He holds a PhD in Linguistics from MIT, a CFA Charter, and CFP certification.

His research and writing have appeared in Kitces.com, ThinkAdvisor, AdvisorPerspectives, and Financial Planning Magazine, and he speaks regularly at the CFP Board Research Colloquium and at NAPFA and FPA conferences.

Practitioner-led. Real scenarios and working math, not a product tour.

Go Deeper

The frameworks behind what you saw.

Read the playbooks Justin referenced during the session.

See it on your clients' numbers.

30 minutes. Real scenarios. No slides.

Book a Walkthrough