Retirement & Tax Planning Answers
How to Find a Flat-Fee Retirement Tax Planner
Quick answer
Start with a fee-only, fiduciary directory: NAPFA (napfa.org), XY Planning Network (xyplanningnetwork.com), the CFP Board's Let's Make a Plan database (letsmakeaplan.org), or the National Association of Enrolled Agents (naea.org) if a tax credential matters most to you. These filter out commission-based advisors before you begin interviewing, which is necessary but not sufficient. From there, screen specifically for retirement tax planning: does the advisor build multi-year Roth conversion projections, model IRMAA tiers, coordinate qualified charitable distributions against RMDs, and work directly with your CPA or EA at filing time. A flat fee alone guarantees none of that. You'll also find flat-fee retirement tax advice sold under four different service models: independent fee-only RIAs charging an annual retainer that covers tax strategy alongside everything else, planning-only firms with no investment management charging a project fee, combined CPA/EA-and-CFP practices that bundle preparation and planning under one person, and hourly consultants who answer a single question without an ongoing relationship. The right one depends on whether you want an ongoing plan or a one-time answer.
'Flat fee' is a billing structure. It says nothing about whether the person collecting that fee is any good at, or even interested in, retirement tax planning specifically. Plenty of flat-fee advisors are primarily investment managers who happen to charge a flat retainer instead of a percentage. The tax planning they do is limited to what a generic financial plan touches on, not what a household with RMDs, IRMAA cliffs, and multi-bracket withdrawal sequencing actually needs.
NAPFA requires every member to be fee-only, meaning no commissions from any source, and a fiduciary on all advice. It is generally the strictest of the public directories and a reliable first filter. The CFP Board's Let's Make a Plan database lists CFP professionals nationally and lets you filter by compensation type, but it is a broader, less pre-filtered pool than NAPFA's, so plan on doing more of your own screening on each result. XY Planning Network is fee-only by membership requirement and tends to include advisors working with a younger or more actively-working client base, though many members also work with pre-retirees directly. The National Association of Enrolled Agents directory helps you find EAs specifically, some of whom also do financial planning or work alongside a CFP.
None of these directories verify retirement tax planning depth beyond the credentials and fee structure they screen for. A NAPFA member is guaranteed to be fee-only and fiduciary. Whether that same advisor actually builds real multi-year Roth conversion models is a separate question you still have to ask directly.
The four service models that sell flat-fee retirement tax advice each fit a different need. Independent fee-only RIAs typically charge an annual retainer, often $5,000 to $15,000 depending on complexity, covering tax planning as one piece of a broader plan alongside investments, Social Security, and Medicare strategy, ongoing rather than a one-time deliverable. Planning-only firms don't manage investments at all; their entire fee is for the plan itself, often a one-time project fee plus a smaller ongoing access fee, which suits someone who manages their own portfolio or already has an investment manager elsewhere. A smaller number of firms combine tax preparation and tax planning under one CPA or EA who also holds a CFP, or works directly alongside a financial planner, closing the gap that opens when a planner and a tax preparer never talk to each other. Hourly or project-based consultants answer a specific question, like whether to convert this year, without an ongoing engagement, which suits a single decision but not the year-over-year monitoring that Roth conversion windows and IRMAA thresholds actually require.
Before signing anything, verify the advisor on the SEC's IAPD database (adviserinfo.sec.gov) and read Form ADV Part 2 for disclosed conflicts. Ask for a sample of the kind of tax projection you'd actually receive. A firm that does this work regularly will have one ready to show you.
Interview more than one flat-fee firm and ask the same tax-specific questions of each. The variance in how seriously firms take retirement tax planning is larger than most people expect going in.
Match the service model to what you actually need. A single question deserves an hourly consultation. An ongoing, multi-year retirement tax strategy, which is what most pre-retirees and retirees with $1M or more actually benefit from, deserves an ongoing retainer relationship, not a one-time project.
Ask what happens after the initial plan. Retirement tax planning isn't a one-time document, since Roth conversion windows and IRMAA thresholds shift every year with income, market performance, and tax law changes.
- Choosing a flat-fee advisor based on the fee structure alone, without confirming actual tax planning competence.
- Stopping the search once a directory returns a fee-only, fiduciary match, without separately confirming retirement tax planning depth.
- Assuming a combined CPA/EA-and-CFP practice is automatically better. The credential matters less than whether the firm actually does the work.
- Not asking whether investment management is bundled into the fee or billed separately, since that changes the real comparison.
- Skipping the SEC IAPD cross-check because a directory already vouched for fee-only status.