A 2026 decision guide for small businesses choosing between Section 179's $2.56M cap and OBBBA's permanent 100% bonus depreciation, with order-of-operations rules, hybrid examples, and state-conformity caveats.
Starting in 2026, the One Big Beautiful Bill Act expands Section 45F's Employer-Provided Child Care Credit from 25% to 40% (50% for businesses under $32M in average gross receipts) and lifts the annual cap from $150,000 to $500,000 ($600,000 for small businesses), with new explicit rules for intermediaries, pooled arrangements, backup care, and reserved-seat contracts.
A see-through trust named on an IRA beneficiary form must navigate the SECURE Act 10-year rule. Conduit trusts pass every distribution through to the beneficiary by year ten, while accumulation trusts retain assets but face compressed trust brackets that reach the 37 percent federal rate at just $16,000 of retained income in 2026.
How nonprofits trigger Unrelated Business Income Tax — a flat 21% federal levy, the three-part IRS test, traps in gift shops and advertising, statutory exclusions, and the post-2017 siloing rules under IRC §512(a)(6) that lock losses to each unrelated business.
Section 280A(g) — the Augusta Rule — lets business owners rent their personal residence to an S-corp, C-corp, or partnership for fewer than 15 days a year and exclude the entire rent from federal income tax. In Sinopoli v. Commissioner (2023), the IRS slashed roughly $290,000 of claimed rent down to $30,000 because documentation and fair-market rates were thin. Here is what 280A(g) actually requires, the five pillars of an audit-proof setup, and how to report the rent without triggering an IRS mismatch.
The One Big Beautiful Bill Act repealed the $600 1099-K threshold in July 2025 and restored the original $20,000-and-200-transaction federal rule, easing paperwork for casual sellers and gig workers — but every dollar of business income remains taxable.
A Solo 401(k) crosses into mandatory Form 5500-EZ filing once combined plan assets exceed $250,000 on the last day of the plan year. Late filings cost $250 per day up to $150,000 annually, but Rev. Proc. 2015-32 caps catch-up filings at $1,500 per plan if no penalty notice has been issued.
How the 2026 Health Savings Account combines tax-free contributions, tax-free growth, and tax-free medical withdrawals — and how the shoebox strategy turns an $8,750 family limit into a six- to seven-figure retirement vehicle by age 65.
Section 183 of the Internal Revenue Code denies loss deductions for activities not engaged in for profit. The IRS applies a nine-factor test and a three-of-five-years safe harbor (two of seven for horses) to distinguish a real business from a hobby — here is what each factor weighs and how to document profit motive before an audit.
A 409A valuation is the IRS-recognized appraisal that sets the strike price on every option grant. Without one, founders risk 20% federal excise penalties, premium interest, and California's 5% piggyback tax — all falling on the employee.
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