Scenario: A Law Firm Partner and Year-End Planning

This page describes a composite hypothetical. It is not a real client or a real result. Amounts are assumptions for illustration, and thresholds and limits change over time.

The Scenario in Brief

An equity partner in a mid-sized law firm receives a Schedule K-1 showing significant income and guaranteed payments. The partner is asked each fall to make decisions about retirement contributions, estimated taxes, and a state entity-level tax election offered by the firm. The partner asks an advisor to help organize the year-end planning.

Assumptions Used

• The partner's share of firm income, including guaranteed payments, is 550,000 dollars this year.
• The partner files jointly with a spouse who has modest wage income.
• The partner's law practice is a specified service trade or business for purposes of the qualified business income deduction.
• The firm offers a 401(k) plan with profit sharing and is considering adding a cash balance plan for its partners, which would be evaluated separately.
• The state in which the firm operates offers an optional pass-through entity tax.
• The partner made estimated payments in equal installments based on last year's tax.

Estimated Taxes

Partners generally do not have tax withheld on their share of firm income. The advisor would review the prior-year safe harbor and compare it with the current-year projection. If income rose materially, the prior-year safe harbor may leave a large balance due at filing, though it can still avoid penalties. Because the partner's income is highest in the fourth quarter distributions, the advisor would consider whether the annualized income installment method is helpful. The partner's spouse could also increase wage withholding if that is a simple way to cover the gap.

The Qualified Business Income Deduction

A specified service trade or business, such as law, may lose some or all of the qualified business income deduction as taxable income rises above the threshold range. At the assumed income level, the advisor would expect the deduction to be limited or eliminated unless taxable income can be reduced below the threshold. That is one reason retirement contributions and other deductions might carry extra value for the partner, since they reduce taxable income and could bring some of it into the range in which the deduction is available. The advisor would model the effect rather than assume it.

Retirement Plan Choices

Partners often have access to the firm's 401(k) with a profit sharing component. Their employee deferral limit applies per person, and the firm's plan design and testing determine how much can be allocated to partners. A cash balance plan could allow larger deductible contributions for partners, but it typically requires contributions for staff and creates a funding commitment. The advisor would explain the trade-offs and suggest that the partners review illustrations from the firm's plan administrator, since the design is a firm-level decision.

State Pass-Through Entity Tax

If the firm elects the state pass-through entity tax, the entity pays state tax on behalf of partners and deducts it at the entity level. The partner then receives a reduced federal income figure on the K-1 and a state credit or deduction. The advisor would ask whether the partner itemizes and whether the partner's state and local tax deduction is otherwise limited. The benefit varies by partner. The advisor would also explain that the firm's estimated payments for the election may be due before year end and that the partner's cash flow should account for the share.

Worked Arithmetic for the Entity Tax Illustration

Suppose the assumed state entity tax attributable to the partner is 40,000 dollars and the partner's marginal federal rate is 37 percent. If the tax is deductible at the entity level, the partner's federal taxable income from the firm is reduced by 40,000 dollars, for an illustrative federal tax reduction of 14,800 dollars, in exchange for the payment of the state tax through the entity instead of personally. The partner would normally have paid the state tax in any event, so the comparison is between deducting it federally at the entity level and being limited on the personal return. The result depends on the state's credit mechanics, the federal limit in effect, and the partner's itemizing status. The numbers are assumptions.

Scenario Variations Worth Considering

If the partner's income were below the QBI threshold, the deduction might be available. If the partner lived in a state that did not give a credit for entity-level tax, the analysis would change. If the firm added a cash balance plan, each partner's contribution and the cost to staff would need to be modeled. If the partner planned to retire soon, buyout and retirement payment taxation would become relevant.

Risks and Limits

• Firm-level decisions affect each partner differently.
• Federal and state rules for entity taxes change.
• Retirement plan choices involve long-term funding commitments.
• The numbers are simplified.

What This Scenario Teaches

Partners are affected by decisions made at the firm level, and personal planning must coordinate with them. A projection early in the fall gives time to act.

Questions to Bring to Your Advisor

1. How should I set estimated payments given my income pattern?
2. Is the qualified business income deduction available to me?
3. What retirement plan options does the firm offer and what would each cost?
4. Would the state entity tax election help me?

Educational purposes only. This page is an illustrative educational scenario, not tax, legal, or accounting advice, and it does not describe a real client or a real result. Tax laws change and outcomes depend on individual facts, so consult a qualified professional before acting. No result is guaranteed.