A 2026 walkthrough of every small business tax obligation—federal income, self-employment, payroll, sales, and excise—with the full filing calendar, quarterly estimated tax safe harbors, OBBBA-era changes (permanent QBI, $1.21M Section 179, restored 100% bonus depreciation), and the recordkeeping habits that prevent penalties.
How the IRS uses Internal Revenue Code Section 6672 to hold business owners, officers, bookkeepers, and even spouses personally liable for 100% of unpaid payroll withholdings — covering who qualifies as a responsible person, how willfulness is established, and how to defend a Letter 1153 within the 60-day appeal window.
A practical guide to Self-Directed IRAs (SDIRAs) — what you can hold, the disqualified-person rules under IRC §4975, UBIT and UDFI on leveraged real estate, the McNulty checkbook-control warning, and the recordkeeping disciplines that prevent a deemed distribution.
Form 3115 lets U.S. taxpayers change accounting methods and use a Section 481(a) adjustment to recover missed deductions or correct multi-year errors on a single current-year return, without amending prior years.
Form 5471 carries automatic $10,000-per-corporation initial penalties capped at $60,000 per year for U.S. persons who own, control, or serve as officers of foreign corporations. Covers the five filing categories, modular schedules, GILTI's rename to NCTI for tax years beginning after December 31, 2025, and the Streamlined and Delinquent Submission routes back into compliance.
A practical guide to Form 709 for 2026 gifts — who must file, the $19,000 annual exclusion, the $15 million lifetime exemption, gift splitting rules, the adequate disclosure standard that starts the IRS three-year clock, and the medical and tuition payments that escape reporting entirely.
Total exposure per misclassified worker now commonly lands between $15,000 and $100,000 once federal back taxes, FLSA back wages with liquidated damages, and state penalties stack. Here is what the 2024 DOL final rule changed, how the IRS and state ABC tests differ, and how Section 530 and the VCSP can cap retroactive liability.
How state income tax really works for remote employees who cross state lines: the convenience-of-the-employer rule used by seven states (including New York), which reciprocity agreements eliminate double taxation, day-counting evidence auditors accept, and the bookkeeping habits that keep multi-state returns predictable.
The 3.8% Net Investment Income Tax kicks in once MAGI crosses $200,000 single or $250,000 joint—thresholds frozen since 2013. This guide explains who pays NIIT, how Form 8960 calculates it, which income types count (interest, dividends, capital gains, passive rentals) and which don't (wages, IRA distributions, muni interest), plus planning levers to cut exposure.
How Qualified Opportunity Funds defer capital gains, deliver tax-free appreciation after a 10-year hold, and what changes for new investments under OBBBA's permanent Opportunity Zones 2.0 rules starting January 2027.
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