Section 461(l) caps how much net business loss a noncorporate taxpayer can deduct against other income. For 2026, the OBBBA reset thresholds to $256,000 single and $512,000 joint—down from $313,000 and $626,000 in 2025. This guide explains the Form 461 calculation, the four loss-limitation gates, and planning moves for K-1 losses, bonus depreciation, and real estate.
Form 4797 governs every business property sale outside Schedule D and decides whether your gain is ordinary or capital. This guide walks through Section 1245 and 1250 recapture, the Section 1231 five-year lookback rule, the 25% unrecaptured Section 1250 gain rate, and seven mistakes that trigger CP2000 notices.
Form 7203 forces S-corp shareholders to prove their stock and debt basis on Form 1040. Misapplying the ordering rules or treating loan guarantees as debt basis can disallow loss deductions, reclassify distributions as capital gains, and trigger 20% accuracy penalties.
An Individual Coverage HRA lets small employers reimburse workers tax-free for individual ACA plans with no contribution cap, 11 employee classes, and a 9.96% affordability threshold for 2026. Here is how the mechanics, tax treatment, bookkeeping, and 90-day rollout actually work.
A 2026 guide to the Pass-Through Entity Tax — how 36+ jurisdictions let S-corps and partnerships convert capped state income taxes into a fully deductible federal business expense, even after OBBBA raised the SALT cap to $40,400.
A working guide to Rollover as Business Startup (ROBS) arrangements — the five required steps, why only a C corporation qualifies, the Form 5500 and prohibited-transaction rules, IRS-documented failure rates, and when alternatives like SBA loans or 401(k) participant loans make more sense.
OBBBA permanently restored the EBITDA-based ATI calculation for Section 163(j) starting in 2025, expanding deductible business interest for capital-intensive companies. A guide to the 30% cap, the ~$31M small business exemption, the 35% syndicate trap, EBIE allocations from partnerships, S-corp differences, and Form 8990 reporting.
Section 280E bars cannabis businesses from deducting ordinary expenses, pushing federal effective tax rates past 70%. A walkthrough of the math, the COGS lever under Section 471, key Tax Court rulings (CHAMP, Olive, Harborside), and what 2026 rescheduling could change.
Section 280F caps first-year depreciation on passenger autos at $20,300 in 2026, but SUVs and trucks rated above 6,000 lbs GVWR escape those limits and can combine a $32,000 Section 179 deduction with 100% bonus depreciation. A practical guide to the 2026 numbers, the heavy-vehicle and pickup carve-outs, the 50% business-use cliff, and the mileage-log standards an IRS auditor expects.
Section 530 of the Revenue Act of 1978 eliminates back federal employment taxes on misclassified contractors when small businesses pass three tests — reporting consistency, substantive consistency, and reasonable basis. Revenue Procedure 2025-10 updated the rules in January 2025, the first major change in 40 years.
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