Why Your CPA and Financial Advisor Should Be Coordinating

Two professionals, two blind spots

A CPA who doesn’t know what’s in the investment portfolio will optimize the tax return without knowing the full picture. An advisor who doesn’t know the business income structure will build a financial plan without understanding where the cash is actually coming from or what the after-tax number looks like.

Both professionals may be doing their jobs correctly in isolation. The problem is that business owners don’t live in isolation. The business, the tax return, and the investment account all interact — and the decisions made in one affect the others.

What the gap actually costs

The coordination gap shows up in specific, measurable ways:

Tax-inefficient investment decisions.An advisor who doesn’t know the owner’s marginal tax rate may recommend asset allocations or realize gains in ways that create unnecessary tax. Bond interest in a taxable account, short-term gains in high-income years, or Roth conversions in the wrong year are common examples. A CPA who knows the portfolio could flag these; without a shared conversation, they usually don’t.

Uncoordinated retirement planning.The advisor manages the retirement accounts. The CPA handles the business return that determines the contribution limits. When these two don’t talk, owners regularly under-contribute to retirement plans, miss Solo 401(k) setup deadlines, or fail to coordinate employer and employee contributions correctly. The IRS limits are not simple — getting them right requires both the business income number and the plan design working together.

Concentrated stock and tax planning that don’t align. Business owners with RSUs, options, or significant holdings in a single company face decisions that are inherently both tax and investment questions. When is the right time to exercise? How much to sell? What does holding concentrated stock do to the overall risk profile? These questions cannot be answered well without both the CPA and the advisor at the table.

Exit planning done late. When a business sale or liquidity event approaches, the decisions that matter most — entity structure, installment sale elections, QSBS eligibility, residency timing, reinvestment plan — require tax and investment thinking together. Owners who start that conversation six months before a closing rarely have enough runway to make the moves that would have mattered. Owners whose CPA and advisor are already talking tend to start earlier.

What coordination actually requires

Coordination doesn’t require weekly calls or a shared software platform. It requires enough shared context that neither professional is working in the dark.

At minimum, a coordinated relationship means:

• The advisor knows the owner’s approximate business income, tax bracket, and key tax sensitivities before making investment recommendations
• The CPA knows what’s in the investment portfolio — at least the account types, approximate value, and any planned changes — when making decisions about income timing and deductions
• Both professionals are aware of major planned events — a business sale, a large distribution, a Roth conversion, a real estate transaction — far enough in advance to plan around them
• Retirement plan contributions are confirmed by the CPA against the actual business income figure and executed by the advisor before deadlines

Why it usually doesn’t happen

The main reason CPA and advisor relationships stay siloed is structural. Each professional has a defined scope, a client relationship they protect, and limited time. Coordinating with another professional requires initiative from someone — usually the client — and clients rarely know what to ask.

A second reason is that each professional’s fee is typically not tied to coordination. A CPA gets paid to file the return. An advisor gets paid to manage the portfolio. Neither is explicitly paid to call the other.

The owners who get the most value from both relationships are usually the ones who either insist on joint conversations, or work with professionals who are structured to coordinate by default.

A simple starting point

If you have both a CPA and a financial advisor and they have never spoken directly, a reasonable first step is to introduce them with a simple goal: make sure neither is making decisions that create problems for the other.

That conversation alone — even once a year — tends to surface the most obvious gaps. The more complex your situation, the more often it needs to happen.