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Advisor and Tax Preparer Cost Calculator: What It Calculates and How to Read the Result
Quick answer
Most retirees pay for advice twice: a percentage-of-assets fee to an advisor and a separate bill to a tax preparer. On a $2 million portfolio, a 1% fee is $20,000 a year before the tax return is filed. This calculator puts that combined cost next to one flat retainer that includes the return, and shows where the percentage fee is actually cheaper.
- Year 1: $22,000 for advisor plus tax preparer, $12,000 flat.
- After 20 years, the flat path ends about $663,243 ahead, assuming the same return on both.
- On these fees, the two cost the same in year 1 at about $1,000,000 of assets.
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| Year | Advisor + tax prep that year | Flat retainer that year | Total paid, two bills | Total paid, flat |
|---|---|---|---|---|
| 1 | $22,000 | $12,000 | $22,000 | $12,000 |
| 5 | $26,410 | $13,506 | $120,769 | $63,710 |
| 10 | $33,216 | $15,657 | $272,603 | $137,567 |
| 15 | $41,815 | $18,151 | $463,675 | $223,187 |
| 20 | $52,685 | $21,042 | $704,340 | $322,444 |
Both paths start with the same assets, earn the same return before fees, and pay fees from the portfolio at the start of each year. Withdrawals, fund expenses, trading costs, custody fees and taxes are excluded from both sides. Many firms bill quarterly and tier their percentage down at higher balances, which this model does not capture.
For most individuals, investment advisory fees and personal tax preparation fees are not deductible in 2026: the 2025 tax law permanently eliminated miscellaneous itemized deductions. Paying fees from an IRA rather than a taxable account also changes the after-tax comparison, which this model does not capture.
The flat retainer default reflects the current Singh PWM schedule and excludes surcharges for rental depreciation, business returns and multi-state filings. Fee schedules can change.
Results are illustrative, not a projection or a guarantee, and do not reflect any client's experience. Cost is one factor in choosing an advisor, not the only one.
What This Calculator Actually Answers
It answers one question: over the years you choose, how much more or less do you pay with an advisor charging a percentage of assets plus a separate tax preparer, compared with a single flat retainer that includes tax preparation?
It shows three things. The year 1 bill on each path. The running total of fees paid. And the portfolio difference at the end, which includes the growth those fees would have earned if they had stayed invested. That last number is usually the one people have never seen.
It also shows the breakeven portfolio size. Below it, the percentage fee plus tax prep costs less than the flat retainer, and you should know that before you switch anything.
How to Read the Result
Use your effective advisory rate, not the headline. If your firm tiers its fee down at higher balances, divide last year's total advisory fees (on your quarterly statements or year-end fee summary) by your average balance. Leave fund expense ratios out; they apply on both paths and are not modeled.
The portfolio difference grows faster than the fee difference because a percentage fee rises as the portfolio rises, and every dollar paid in fees stops compounding. A gap that looks modest in year 1 can be large by year 20.
Keep the flat retainer increase above zero. Flat fees go up too, and a comparison that freezes one side and not the other is not a fair one.
Common Mistakes
- Comparing the headline 1% rather than the effective rate after breakpoints, which overstates the gap for larger portfolios.
- Forgetting the tax preparation bill entirely, or assuming your advisor's fee already covers your return. At most percentage-fee firms it does not.
- Assuming a flat fee always wins. Below the breakeven portfolio size, a percentage fee costs less, and the calculator shows it.
- Treating cost as the whole decision. A cheaper arrangement that misses Roth conversion, IRMAA or RMD planning can cost more than the fee difference.
- Moving accounts before checking for termination fees, transfer fees, proprietary funds that cannot transfer in kind, and capital gains on anything that has to be sold.
When This Calculator Is Not the Right Tool
It is not a retirement projection. It ignores withdrawals, taxes and fund expenses on purpose, so the only difference between the two paths is how you pay for advice. Use the Monte Carlo or safe withdrawal tools to test whether the plan itself works.
It also does not model surcharges for complex returns such as rental depreciation, business returns or multi-state filings, or commission-based products like annuities, which carry costs a percentage-fee comparison does not capture.
Frequently Asked Questions
What does a financial advisor cost on $2 million?
At a flat 1% it is $20,000 a year. Many firms tier their rate down at higher balances, so your effective rate may be lower; divide last year's total advisory fees by your average balance to find it. Tax return preparation is usually billed separately on top of that.
Is a 1% advisory fee too high?
It depends on the portfolio size and what the fee covers. On $800,000, 1% is $8,000 and can cost less than a flat retainer. On $2 million or more, 1% plus a separate tax bill usually costs more than a flat retainer that includes the return. Run your own numbers above.
Does my advisor's fee include tax preparation?
At most percentage-fee firms, no. Many provide tax-aware investing or general tax guidance but do not prepare or sign your return. Check your advisory agreement or ask directly.
Will I owe taxes if I switch advisors?
Not if your holdings move in kind, which most stocks, ETFs and widely available mutual funds can. Proprietary funds or products that cannot transfer may need to be sold, which can trigger capital gains in a taxable account. Get a list of holdings that cannot transfer before you start.