Entity Setup
Entity Setup in 2026: Choosing Between S-Corp, Partnership or LLC Under New Inflation Thresholds
Understand how raised income and deduction thresholds under the OBBB affect your best entity choice in 2026—and what to consider when forming or converting your business entity.
By NomadicTax Research Team • 5-8 min read • November 20, 2025
## Why 2025-26 is a Pivotal Time for Entity Decisions
Under the One, Big, Beautiful Bill, the IRS updated many thresholds and deductions starting **tax year 2026**, including the **§179 expensing limit**, phase-outs, and standard deduction changes. These affect the after-tax profits of different entity types (LLCs, S-Corps, Partnerships) significantly. ([irs.gov](https://www.irs.gov/irb/2025-45_IRB?utm_source=openai))
## Key Inflation-Adjusted Changes That Impact Business Entities
- **§179 Expensing Limit**: For property placed in service in tax years beginning after Dec 31, 2024, the §179 maximum amount a taxpayer may expense increases to **$2,500,000**, with phase-out threshold at $4,000,000. ([irs.gov](https://www.irs.gov/irb/2025-45_IRB?utm_source=openai))
- **Standard Deduction**: For 2026, married filing jointly: $32,200; single: $16,100; heads-of-household: $24,150. Higher deductions shrink taxable income ceiling and reduce rates for many new businesses. ([irs.gov](https://www.irs.gov/newsroom/one-big-beautiful-bill-provisions?utm_source=openai))
- **Marginal Tax Rates Stay Permanent**: The existing seven-bracket individual rates (10-37%) are made permanent under OBBB. This reduces risk for Pass-Through entities taxed at individual rates. ([irs.gov](https://www.irs.gov/irb/2025-45_IRB?utm_source=openai))
## Comparing Entity Types Under New Rules
| Entity Type | Pass-through taxation | Deduction leverage & expensing | Administrative complexity |
|---|---|---|---|
| **S-Corporation** | Profits taxed at individual rates (which are now permanent). Reasonable salary rule still applies. | §179 expensing and business deductions reduce taxable income substantially. Better for businesses with heavier capital outlays. | Requires payroll compliance, corporate formalities; pay attention to W-2 salaries vs distributions. |
| **Partnership / LLC taxed as partnership** | Similar pass-through benefits; allocations flexible. | High §179 expensing means partners can expense large assets; owner basis considerations matter. | Partnership agreements critical; more complexity in non-recourse vs recourse liabilities etc. |
| **C-Corporation** | Subject to flat corporate tax; dividends taxed again—less common for small businesses unless scaling up. | Can leverage credits, depreciation, but loses pass-through benefits and standard deduction changes. | Double taxation and Arizona residency (for owner/employees) matters; more accounting and regulatory burden. |
## Examples
- A small web development firm (an LLC taxed as an S-Corp) purchasing $3 million of new equipment: With §179 now allowing $2.5 million expensed, this means much of capital cost can be written off immediately rather than depreciation over years.
- A solar-panel installation business investing in clean vehicles and energy property: If placed or acquired before the expiration dates under §25D, §25E, these entities may still get clean energy or clean vehicle credits. Choosing pass-through status ensures those benefits flow to individual owners.
## What to Consider When Setting Up or Restructuring Entities
- **Timing of asset purchases and contracting**: Buying or contracting assets before expiry dates (e.g. for clean energy credits or clean vehicles) is critical under OBBB.
- **Owner compensation**: For S-Corps, salary versus distribution needs reevaluation in light of OBBB’s rate tables and deductions.
- **Basis and capital structure**: Partnerships/LLCs with generous §179 deductions risk negative basis issues; make sure capital accounts are tracked.
- **Intent to convert entity type**: Converting from partnership or LLC to S-Corp or vice versa has tax consequences—evaluate for 2026 given new thresholds and permanent rates.
## Actionable Steps
1. Project revenue and deductions under each entity type for 2026, using updated thresholds.
2. Identify capital expenditures planned and decide if qualifying under §179, clean energy, or clean vehicle credits.
3. Consult with CPA on entity conversion dates and how it affects payroll/estimated taxes.
4. Ensure your entity structure supports required reporting under OBBB for tips, overtime, vehicle interest.
## Final Thoughts
With inflation-adjusted thresholds and many tax incentives changing or expiring, 2025-2026 is a rare window to optimize your business structure. Whether it's choosing S-Corp status, using LLC flexibility, or planning to take advantage of clean energy and vehicle credits—decisive action now can yield large benefits later.