#tax-compliance
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A plain-English walkthrough of Form W-4 Step 2(a), 2(b), and 2(c) for two-earner households and side-hustlers — including the higher-paying-job rule, side-hustle income on Step 4(a), and the 90%/100%/110% safe-harbor numbers that prevent an April tax bill or penalty.
A Master Limited Partnership pays cash quarterly but issues a Schedule K-1, not a 1099. Most distributions reduce your cost basis instead of being taxed, holding units in an IRA can trigger UBTI and a Form 990-T once income exceeds $1,000, and selling converts depreciation into ordinary income under Section 751 — taxed up to 37%.
How individual MLP investors actually owe tax — UBTI on IRA-held units crosses the $1,000 Form 990-T threshold faster than expected, Section 751 reclassifies part of any sale gain as ordinary income, and the K-1's state schedule can force nonresident filings in operating states. Includes practical thresholds and basis-tracking rules.
IRS Memorandum AM 2023-004 holds that most nonprofit NIL collectives fail the 501(c)(3) operational test because compensating student-athletes is substantial private benefit, not charitable activity — meaning donor contributions are often not deductible.
The IRS memorandum AM 2023-004 concluded that NIL collectives paying 80-100% of donations to athletes confer substantial private benefit and fail the operational test for 501(c)(3) status, so contributions to them are generally not tax-deductible.
The OBBBA restores a personal car-loan interest deduction—up to $10,000 per year, above-the-line, for tax years 2025 through 2028—on new U.S.-assembled vehicles financed after December 31, 2024. Mechanics covered include the MAGI phase-out starting at $100K single / $200K joint, Form 1098-VLI reporting beginning in 2026, mandatory VIN entry on Form 1040, and edge cases for refinances, trade-ins, leases, and co-signers.
Personal use of a company car is taxable wages. This guide compares the three IRS valuation methods — Annual Lease Value, cents-per-mile (72.5¢ for 2026), and the $1.50 commuting rule — with worked examples and W-2 reporting steps.
Sales tax you collect belongs to the state, not your revenue line. Here are the journal entries, the month-end reconciliation routine, and the multi-state economic nexus rules that keep your books audit-ready.
Section 1375 imposes a flat 21% sting tax on S corporations that carry C-corp earnings and profits when passive investment income exceeds 25% of gross receipts, and three consecutive years over that threshold terminates the S election automatically. This guide walks through the excess net passive income formula, the three-year cliff under Section 1362(d)(3), and three planning moves to defuse exposure before year-end.
The Section 1375 sting tax hits an S corporation with a 21% corporate-level tax when it has C-corporation E&P and passive investment income above 25% of gross receipts; three consecutive years of that combination terminates the S election. This guide shows who is exposed, how excess net passive income is calculated, and how to defuse the trap.
Section 414(b), (c), and (m) treat related businesses as one employer for retirement-plan testing. This guide explains controlled-group and affiliated-service-group rules, the spousal and minor-child attribution traps, and the steps multi-business owners should take before opening a 401(k).
Section 530 of the Revenue Act of 1978 blocks the IRS from assessing back payroll taxes on reclassified 1099 workers if a business proves reasonable basis, substantive consistency, and reporting consistency. Revenue Procedure 2025-10 now requires examiners to consider the relief first and sets 25% / 10-year thresholds for the industry-practice safe harbor.
