The following is a composite case study based on real client situations handled by TraderTax CPAs. Names and specific figures have been adjusted for privacy, but the strategies, numbers, and outcomes are representative of real results.
Marcus T. — ES and NQ futures day trader. 4 years trading, consistently profitable. Previously filed taxes using a general CPA who had no specific knowledge of trader taxation. Came to TraderTax after a friend told him about mark-to-market accounting.
Where Marcus Started
Marcus had a very good year. His trading P&L showed:
- Gross futures trading profits: $186,000
- Trading expenses he was aware of: ~$4,200 (platform fees, data)
- His old CPA's approach: Report all gains as capital gains, deduct the $4,200 in expenses, pay taxes on $181,800
At his marginal tax rate, his old CPA's approach would have resulted in approximately $67,000–$72,000 in combined federal tax — not accounting for self-employment tax on any prop firm income he also had.
Step 1 — Confirmed Section 1256 Treatment
Marcus's primary instruments were ES (E-mini S&P 500) and NQ (E-mini Nasdaq 100) futures contracts. These are Section 1256 contracts — automatically taxed at the 60/40 blended rate.
His old CPA had reported all futures gains as short-term capital gains. This was incorrect. Under proper Section 1256 treatment:
- 60% of gains ($111,600) = long-term capital gains — taxed at 20% = $22,320
- 40% of gains ($74,400) = short-term capital gains — taxed at 37% = $27,528
- Total capital gains tax under §1256: $49,848
- Under incorrect short-term-only treatment: $68,820
- Savings from correct §1256 treatment alone: ~$19,000
Step 2 — Uncovered $18,400 in Missed Deductions
Marcus's old CPA identified $4,200 in obvious expenses. TraderTax's full deduction audit found significantly more:
| Expense Category | Amount | Old CPA Found? |
|---|---|---|
| Trading platform & data feeds | $4,200 | Yes |
| Home office (dedicated trading room) | $3,800 | No |
| Equipment (3 monitors, new computer) | $4,200 | No |
| Internet (80% business use) | $960 | No |
| Trading education & courses | $2,400 | No |
| Market news subscriptions | $840 | No |
| CPA fees (prior year) | $1,200 | No |
| Health insurance premiums | $7,200 | No |
| Total Deductions | $24,800 |
The additional $20,600 in found deductions reduced taxable income further — saving approximately $7,600 in additional taxes at Marcus's effective rate.
Step 3 — S-Corp Election for Prop Firm Income
In addition to futures trading, Marcus had received $48,000 in payouts from two prop firms (Apex and TopStep). His old CPA had reported this as sole proprietor income — subject to full self-employment tax of 15.3%.
TraderTax set up an LLC with S-Corp election for Marcus's prop firm trading activity:
- Marcus paid himself a reasonable salary of $24,000
- The remaining $24,000 passed through as an S-Corp distribution — not subject to SE tax
- SE tax on $24,000 salary: ~$3,672
- SE tax under sole proprietor on full $48,000: ~$7,344
- SE tax savings: ~$3,672
The S-Corp election also allowed Marcus to establish a Solo 401(k) and contribute $23,000 — reducing his taxable income by an additional $23,000.
The Full Picture — Before vs After
| Item | Old CPA Approach | TraderTax Approach |
|---|---|---|
| Futures tax treatment | All short-term: $68,820 | §1256 60/40: $49,848 |
| Total deductions found | $4,200 | $24,800 |
| Tax on prop firm income (SE tax) | $7,344 | $3,672 |
| Solo 401(k) contribution deduction | $0 | $23,000 |
| Health insurance deduction | $0 | $7,200 |
| Estimated Total Tax Owed | ~$67,000 | ~$32,000 |
Marcus's total tax liability dropped from approximately $67,000 to approximately $32,000 — a savings of $35,000 in a single year. TraderTax fees for the full service were $2,800 — a return on investment of more than 12x.
What Marcus Did Differently Going Forward
- Started making quarterly estimated tax payments to avoid underpayment penalties
- Kept a dedicated trading expense tracking spreadsheet throughout the year
- Maximized his Solo 401(k) contributions annually
- Set aside 20% of every prop firm payout for taxes in a dedicated account
- Continued working with TraderTax for annual tax planning — not just filing
In year two with TraderTax, Marcus's trading income increased to $240,000. With the structures already in place, his effective tax rate was under 22% — compared to the 36%+ he was paying before.
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