Customer concentration above 10% triggers GAAP disclosure, and concentrations above 30% can knock 20–35% off a sale price and shrink bank advance rates. Where the danger thresholds sit, how lenders and acquirers price the risk, and how to diversify revenue before it costs you.
Drop shipping treats one shipment as two sales for tax purposes, and depending on nexus, resale certificate rules, and marketplace facilitator laws, an ecommerce operator can owe tax in states they never set foot in. A 2026 field guide to who actually collects, the ten strict resale states, and the nexus thresholds — including transaction-trigger drops — that decide your exposure.
Vertical SaaS platforms are layering payments, lending, and issued cards on top of their software using sponsor banks and BaaS middleware. A practical guide to the 2026 stack, realistic economics, the right sequencing, and the compliance traps that freeze programs.
ERISA Section 409 imposes personal liability on 401(k) plan fiduciaries, and the corporate veil does not shield small business owners. This guide explains the prudent-expert standard, the Tibble v. Edison duty to monitor, and how hiring a Section 3(38) investment manager shifts investment discretion — and most related liability — away from the plan sponsor.
A practical walkthrough of how Revenue Procedure 2013-30 lets businesses cure a missed Form 2553 S-corp election within three years and 75 days — no $3,500+ private letter ruling fee, no negotiation, just a checklist and a well-written statement.
A side-by-side comparison of the simplified $5-per-square-foot method and Form 8829's actual expense method for the 2026 home office deduction, with worked examples, depreciation recapture math, carryover rules, and a decision framework for self-employed filers.
A practical comparison of FIFO, LIFO, weighted average, and specific identification — with IRS rules, Form 970 and Form 3115 mechanics, the LIFO conformity trap, and a five-step framework for picking the right inventory method in 2026.
Section 127 lets employers reimburse up to $5,250 per employee per year for tuition, books, or student loan principal and interest with no payroll or income tax. OBBBA made the student loan provision permanent in July 2025 and begins indexing the cap to inflation in 2027 — here is how a small business sets up a compliant plan.
A practical guide to Section 132 fringe benefits — working condition, de minimis, employee discounts, no-additional-cost services, the 2026 $340/month transportation limits, and achievement award rules — covering which perks qualify as tax-free, the cash-equivalent trap, and how to document everything so the program survives an IRS payroll audit.
Section 197 lets buyers in U.S. asset acquisitions amortize goodwill, customer lists, non-competes, and other intangibles ratably over 180 months. This guide covers the eight qualifying categories, Form 8594 allocation across Classes I–VII, the pooling rule, and anti-churning traps that can wipe out the deduction.
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