Tax-free fringe benefits
Section 132 lists six categories of fringe benefits excluded from income: no-additional-cost services, qualified employee discounts, working-condition benefits, de minimis benefits, qualified transportation benefits, and on-premises athletic facilities. Each category has specific rules and dollar caps.
Health and welfare
Group health insurance, HSA contributions, dependent care benefits (up to the annual limit), educational assistance (up to $5,250), adoption assistance, and group-term life insurance up to $50,000 are excludable. Owner-employees of pass-through entities face special rules (more-than-2% S-corp shareholders cannot exclude many fringe benefits).
Working-condition benefits
Property or services provided to an employee that would have been deductible as a business expense if the employee had paid for them personally. Common examples: company cell phones, business publications, business travel, home internet for remote work.
De minimis benefits
So small that accounting for them would be unreasonable: holiday turkeys, occasional meals or transit passes, occasional theater tickets, low-value group meals at company functions. Cash and cash equivalents (gift cards) are never de minimis even in small amounts.
S-corp special rules
A more-than-2% S-corp shareholder is treated like a self-employed individual for most fringe benefit purposes. Health insurance premiums paid by the S-corp must be added to the shareholder's W-2 (Box 1, federal taxable wages, but not Box 3/5 FICA wages) and the shareholder claims the self-employed health insurance deduction.
Companion forms and schedules
Most IRS publications are written to support one or more specific forms. The publication's first chapter typically lists the forms it covers, and the form instructions cross-reference the publication. Used together, the form instructions and the publication answer most line-by-line questions. When they conflict — which is rare but happens, usually after a mid-year legislative change — the form instructions generally win, because they are revised more frequently and reflect the most current IRS interpretation.
Annual updates worth tracking
Each year's edition of the publication updates inflation-adjusted dollar limits, references to the current-year forms, and any legislative changes from the prior year's tax bills. The "What's New" page at the front of each publication is the single highest-value page for an experienced reader; it flags exactly which paragraphs in the prior edition no longer apply. If you maintain a personal tax-planning workbook, building a discipline of re-reading just the "What's New" page each January catches almost every legislative change that affects a small-business return.