Section 01 of 04
The deduction rules have not changed — but the 2026 numbers have
"Ordinary and necessary" remains the IRS standard. “Ordinary” means the expense is common and accepted in the business field. “Necessary” means it is appropriate and helpful — not that the business could not survive without it.
What changed in 2026 is the scale of what qualifies for immediate deduction. The One Big Beautiful Bill Act (OBBBA) permanently restored 100% bonus depreciation for qualifying property acquired and placed in service after January 19th of 2025 — IRS Notice 2026-11. In other words, qualifying equipment, machinery, and specific software placed in service this year may be fully deductible in year one.
Section 02 of 04
The deductions most small businesses will use in 2026
Eligibility varies by entity type and documented business use, as well as applicable IRS rules. The expenses below appear regularly on small business returns.
Operating Expenses
Expense | 2026 Rule | Note |
Rent & utilities | Deductible when paid in ordinary course of business | Mixed-use space requires proportional allocation |
Wages & salaries | Deductible for actual services rendered | Owner compensation rules vary by entity — requires separate analysis |
Supplies & materials | Deductible — de minimis safe harbor may apply | USD 2,500 per item threshold without AFS — USD 5,000 with one |
Vehicle Use
The 2026 standard mileage rate is 72.5 cents per mile as per IRS Notice 2026-10. The actual expense method is available as an alternative. Both methods cannot be applied to the same vehicle in the same year.
Equipment and Property — Two Distinct Mechanisms
These are not the same rules. Applying them interchangeably is one of the most common filing errors on capital-heavy returns.
Mechanism | 2026 Limit | Function |
Section 179 | Up to USD 2,560,000 — phase-out begins at USD 4,090,000 | Elected first-year deduction — must be actively chosen on the return |
100% Bonus Depreciation | No dollar cap for qualifying property | Applies to property placed in service after January 19th of 2025 — IRS Notice 2026-11 — separate eligibility rules govern |
The 20% QBI Deduction — Section 199A
Pass-through owners may qualify for a 20% deduction on qualified business income, now permanent under the OBBBA. The 2026 phase-in thresholds are USD 201,775 for single filers and USD 403,500 for married filing jointly — Rev. Proc. 2025-32. Income above the thresholds generates W-2 wage and capital limitations that can lower or eliminate the benefit.
Meals
Client business meals with a documented business purpose remain 50% deductible. Entertainment stays at 0%. Employer-provided convenience meals — breakroom snacks, subsidized cafeterias — dropped from 50% to 0% deductible on January 1st of 2026.
Who is writing this
Guidance from a firm that files these every season
Wasserman Accounting has advised New Jersey individuals and businesses since 1993. The positions in this article are the ones we take on real returns.
Since 1993
30+ years in practice
3,054
Clients served
10,000+
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Section 03 of 04
An example scenario
A sole proprietor purchases a USD 3,800 laser engraver in March 2026. There are 3 available deduction paths. Each generates a distinct result in parallel to her income for the year.
Path | Function | Key Constraint |
Section 179 — elected | Deduct the full USD 3,800 in year one | Deduction cannot exceed net business income — excess carries forward |
100% Bonus Depreciation | Full deduction in year one — no election required | Property must be placed in service after January 19th of 2025 |
Standard Depreciation — MACRS | Deduct over 5-year schedule | No income limitation — but the deduction is spread across years |
The carryforward matters. If her Section 179 deduction exceeds her net business income in 2026, the unused amount is not lost — it rolls to the following tax year. Bonus depreciation does not carry the same income limitation — which makes it the stronger option in a loss year.
The correct roadmap varies with her projected income and entity structure as well as other elections already in place. That is not a decision to make at the filing screen.
Section 04 of 04
What you should do next
The exact deductions available to your business in 2026 vary with the entity structure, what you purchased, how assets were placed in service, and how the income lands relative to phase-out thresholds. There is no universal checklist.
For a complete breakdown of small business tax deductions 2026 — covering the depreciation table, entity-specific rules, and records you need to support every claim — read our full CPA guide at Wasserman Accounting — or schedule a consultation to review your deduction strategy before you file.
