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Business
Business finance strategies and accounting best practices for success
Bad Debt and Uncollectible Receivables: When to Write Off, How to Prove Worthlessness Under Section 166, and Why Cash-Basis Businesses Can't Deduct Unpaid Invoices
An unpaid invoice isn't automatically a deduction for cash-basis businesses and worthlessness must be proven in the year claimed — document business character, collection efforts, and the specific charge-off before December 31.
Health Insurance Deduction for Self-Employed in 2026: How Schedule 1 Above-the-Line, ICHRA, and QSEHRA Interact With the Premium Tax Credit
Deduct premiums on Schedule 1, get reimbursed via ICHRA/QSEHRA, or take the premium tax credit — never two for the same dollar. Master the month-by-month coordination and circular math that prevents double benefits.
Sales Tax Nexus in 2026: Economic Nexus Thresholds by State and the $100K / 200-Transaction Trap After Wayfair
The $100K-or-200 shorthand is wrong in most states in 2026 — many repealed the transaction test and three big states use $500K. Track gross by state and channel before the notice does.
1099-K Threshold for 2026: Why Gig Workers and Online Sellers Still Get a Form at $600 in Most States Even After the Federal $5,000 Patch
Federal relief says $5,000 but most states still require $600 — a form in the mailbox may be state-driven. Reconcile per-TPSO gross to taxable income and don't pay tax on mis-coded reimbursements.
QDOT 规则重写：财政部第10050号决议对配偶非美国公民的企业主意味着什么
财政部第10050号决议已于2026年7月10日生效，这是三十年来对合格境内信托（QDOT）法规首次实质性更新。本文解释为何无限婚姻扣除将非公民配偶排除在外、QDOT具体要求哪些条件——美国受托人、在706表上主动作出选择，以及信托资产超过200万美元时的担保要求——以及新规为企业主的遗产做出的四项程序性修正。
SEP IRA vs. Solo 401(k) vs. SIMPLE IRA in 2026: Contribution Limits, Deadlines, and the Tax Math for Solo Owners With and Without Employees
Solo owner with $140K profit can do $28K SEP, $35K Solo 401(k), or $16K SIMPLE — same profit, different deductions. Match the plan to employees, profit, and whether you need the deduction by December 31 or April 15.
FDA新的“健康”标签规则:食品企业在2028年2月25日前必须完成的事项
FDA对“健康”一词的新定义将于2028年2月25日起强制生效:产品必须来自某个食物类别并提供有意义的含量,且每份中饱和脂肪不超过每日参考值(DV)的10%、钠不超过15%、添加糖不超过10%。本文梳理哪些产品将获得资格、哪些会失去资格、合规成本大致是多少(每个UPC约20美元的标签更新费用,每个配方约100万美元的重新配方费用),并为小型食品企业提供一份切实可行的时间表。
The QBI Deduction Cliff in 2026: What Happens When Section 199A Expires and How Pass-Through Owners Model Life After the 20% Deduction
199A's 20% QBI deduction sunsets after 2025 as written — model the cliff by your actual capped deduction and marginal rate, revisit salary and retirement timing, and track W-2/UBIA for a retroactive extension.
Cost Segregation for Small Commercial Property in 2026: How a $400K Building Can Generate $80K of Front-Loaded Depreciation Without a Full Engineering Study
A small building's first-year deduction can triple with cost segregation — reclassify 5-year, 7-year, and 15-year pieces, elect Section 179/bonus where it helps, and document the allocation the ATG expects.
Section 174 R&D Capitalization in 2026: Why Small Businesses Must Amortize Research Costs Over 5 Years and How OBBBA's Retroactive Fix Changes the Math
Since 2022 research costs must be capitalized over 5 years — software included — midpoint in year one. Track domestic vs foreign, build the amortization schedule, and be ready for OBBBA's retroactive expensing.
车队远程信息处理ROI：每位小车队车主都该算的GPS追踪账
一支拥有10辆车的服务车队每年花费约1000美元用于GPS追踪，通常能在燃油、人工和保险方面节省15,000至30,000美元，大多数使用者能在7到12个月内实现正回报。
Independent Mobile Auto Detailing and Ceramic Coating Business Bookkeeping: Per-Job Pricing, Chemical Inventory, Van and Equipment, Warranty Deferred Revenue, and the KPIs That Hit 40–55%
Detailing margins live per job — price per ticket, cost chemicals per job, expense the van via Section 179/bonus, defer coating warranty revenue, and run on revenue per job and net margin after owner labor.