Flat Fee vs. AUM for Business Owners: The Real Cost Comparison

The best fee model is the one that pays the advisor for the work you actually need. For business owners, that work is often much bigger than portfolio management.

AUM rewards asset management

Assets-under-management fees are simple and familiar. But the fee grows as the portfolio grows, even if the planning work does not. A 1% fee on $1 million is about $10,000 per year. A 1% fee on $5 million is about $50,000 per year. Same percentage, very different real-world cost.

Flat fee rewards planning scope

A flat fee can make more sense when the value lives in strategy: tax planning, business decisions, cash flow, estate coordination, charitable planning, family goals, and CPA collaboration. The advisor is paid for planning work, not only for managing assets.

The business-owner question

If most of your complexity lives in the business, why should your advisor’s compensation be based only on the investment account? This does not make AUM automatically wrong. It simply means the advisor must show planning value that matches the dollars being paid.

When AUM may still be reasonable

AUM can still be fair if the advisor is managing meaningful assets and delivering deep planning around taxes, withdrawals, investment location, charitable giving, estate coordination, business-sale planning, and risk. The fee is not the problem by itself. Thin service at a high fee is the problem.

When flat fee becomes more aligned

Flat fee often fits owners whose net worth is split between the business, real estate, retained earnings, retirement accounts, and taxable investments. In that situation, the advisor's value may come from decisions across the whole financial life rather than a single managed account.

How to compare the two models

Translate both fee models into annual dollars. Then list the planning deliverables: tax-return review, owner-pay planning, CPA coordination, cash-flow structure, investment management, insurance review, estate coordination, retirement projections, and decision support. Compare cost to actual work, not to marketing language.

The cleanest next step

Use the AUM calculator first, then read the hidden-cost guide. Once you know the dollar amount, the scorecard helps you decide whether the relationship is delivering enough value to justify it.

Questions to ask next

If those questions made you pause, take the 60-second Advisor Scorecard. No fluff. Just a clearer sense of where your advisor relationship stands.

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