This case study examines how a partner at a national consulting firm with $1.25M in combined W-2 and K-1 income reduced tax liability by over $155,000 through strategic income timing, partnership basis step-up elections, and qualified business income (QBI) deduction optimization under IRC Sections 199A, 706, and 754.
The Client Situation
Our client earned $750,000 in W-2 salary as an executive director plus approximately $500,000 in K-1 partnership income from the consulting firm. With combined income of $1.25M, the client's annual federal tax liability was approximately $435,000, a marginal rate of 35%.
However, the partnership's accounting method and the client's personal real estate holdings created significant planning opportunities that prior tax advisors had not identified.
Strategy 1: Partnership Basis Step-Up Election Under IRC Section 754
Under IRC Section 754, a partnership can elect to adjust the basis of partnership property following a partner's death or when a partner acquires their interest through purchase or transfer. When our client acquired an additional partnership interest (through capital contribution and earned profit allocation), we filed a timely Section 754 election.
This election allowed the partnership to increase the basis of partnership assets (primarily the client list and customer relationships) to reflect the fair market value of the client's newly acquired interest. The basis adjustment under IRC Section 743(b) created approximately $180,000 in amortizable basis (under IRC Section 197, acquired intangible assets are amortized over 15 years).
This created approximately $12,000 in annual amortization deductions ($180,000 ÷ 15 years), reducing the partner's allocated K-1 income by $12,000 annually, saving approximately $4,200 per year in tax at the 35% marginal rate.
Strategy 2: QBI Deduction Optimization and W-2 Wage Limitation
Under IRC Section 199A (Qualified Business Income deduction), pass-through business owners can claim a deduction of up to 20% of their QBI. However, for service businesses (including consulting), the QBI deduction is subject to W-2 wage limitations under IRC Section 199A(b)(1)(B).
Specifically, the QBI deduction for service businesses cannot exceed the greater of: (1) 20% of QBI, or (2) The lesser of 20% of QBI or 25% of the business' total W-2 wages paid by the business.
Our client's K-1 income of $500,000 was reduced by the amortization deduction to $488,000 in QBI. Without proper planning, the client's QBI deduction would have been limited by the consulting firm's total W-2 wages (including all partners' and employees' compensation).
We worked with the consulting firm to optimize W-2 wage allocation, ensuring sufficient wages were paid to support the client's full QBI deduction. This required careful coordination with the firm's payroll and compensation planning, but resulted in the client claiming the full 20% QBI deduction on $488,000 in K-1 income = $97,600 QBI deduction (versus a potentially lower deduction if W-2 wage limitations applied).
The QBI deduction reduces the client's taxable income by $97,600, saving approximately $34,160 in tax at the 35% marginal rate.
Strategy 3: Real Estate Held for Investment and Section 1231 Deferral
Our client owned commercial real estate generating approximately $120,000 in annual rental income. Under normal treatment, this would be ordinary income. However, we reviewed potential IRC Section 1231 asset disposition strategies to defer gain recognition.
Specifically, under IRC Section 1231(a), gains and losses from the sale of certain business property (including real property used in a trade or business, held for more than one year) are treated as long-term capital gains if gains exceed losses for the year.
Our client's commercial property had appreciated approximately $350,000 since acquisition. By planning to sell a portion of the property in coordination with a like-kind exchange under IRC Section 1031, we structured the transaction to: (1) Recognize gain only on the portion being exchanged out (reducing current-year gain recognition); (2) Defer gain on the remaining property indefinitely through continued ownership; (3) Achieve IRC Section 1231 treatment on any recognized gain.
This deferral strategy preserved approximately $87,500 in potential capital gains tax (at 15% long-term capital gains rate × $350,000 × partial disposition structure), moving that tax liability to future years when the client might have lower income or different circumstances.
The Integrated Result
Prior Tax Approach: W-2 income $750,000. K-1 partnership income $500,000. Rental income $120,000. Less: Standard deduction ($27,700). Taxable income $1,342,300. Federal tax approximately $469,000. Plus state income tax approximately $48,000. Total federal and state: $517,000.
Optimized Tax Approach: W-2 income $750,000. K-1 partnership income reduced by Section 754 basis step-up amortization ($488,000). Rental income (partially deferred through 1031 structuring) $85,000. QBI deduction ($97,600). Less: Standard deduction ($27,700). Taxable income $1,198,000. Federal tax approximately $410,000. Plus state income tax approximately $42,000. Total federal and state: $452,000.
First Year Tax Savings: $517,000 - $452,000 = $65,000. Five-Year Cumulative Savings (including continued amortization benefit): $155,000+
Key IRC Provisions
- IRC Section 199A: Qualified business income (QBI) deduction (up to 20%)
- IRC Section 199A(b)(1)(B): W-2 wage limitation for service businesses
- IRC Section 706: Partnership taxation and income allocation
- IRC Section 743(b): Basis adjustment following partner's interest acquisition
- IRC Section 754: Election to adjust basis of partnership property
- IRC Section 197: Amortization of acquired intangibles
- IRC Section 1231: Capital gains treatment for certain business property
- IRC Section 1031: Like-kind exchanges
Compliance and Documentation
This strategy required: (1) Timely Form 754 election filed with the partnership's Form 1065; (2) Detailed appraisal supporting the basis adjustment amount; (3) Proper K-1 reporting reflecting the basis step-up amortization; (4) Real estate 1031 exchange documentation supporting gain deferral; (5) QBI calculation worksheets (Form 8995 or 8995-A) supporting the wage limitation analysis.