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How U.S. states divide multistate corporate income using single sales factor, three-factor, and market-based sourcing rules — including throwback and throwout traps, P.L. 86-272 limits, and the bookkeeping detail required to file accurately.
A guide to state corporate income tax apportionment in 2026 — why 34 of 44 corporate-tax states now use single sales factor, how market-based sourcing rules in California, Kansas, and Arkansas shift SaaS and service company tax bills toward customer location, and five strategies to manage the exposure.
A statutory notice of deficiency gives a small business owner exactly 90 days to petition the U.S. Tax Court — the only path to challenge an IRS adjustment without paying first. This guide explains CP3219A, the Section 6213 deadline, the $50,000 small tax case election, and the records that decide outcomes.
A Statutory Notice of Deficiency gives a small business 90 days to petition the U.S. Tax Court before the IRS assesses additional tax. This guide explains the CP3219A deadline, Form 5564 waiver, S-case election, and the four realistic responses every owner should weigh.
Subpart F forces U.S. shareholders of a controlled foreign corporation to recognize foreign profits as current-year income, even when no cash is distributed. This guide covers the 10 percent threshold, the four triggering income categories, Section 958 constructive ownership traps, Form 5471 penalties, and how the 2026 OBBBA rewrite (NCTI, restored 958(b)(4), 40 percent Section 250 deduction) reshapes the rules.
How U.S. shareholders of foreign corporations are taxed on undistributed profits in 2026: the 10 percent threshold, Section 958 constructive ownership, Form 5471 filing duties, and the OBBBA rewrite that replaced GILTI with Net CFC Tested Income (NCTI).
A practical 2026 playbook for small businesses using a Treasury-bill ladder to earn ~3.66% on idle operating cash, capture the state and local tax exemption on Treasury interest, and keep the bookkeeping clean.
A 2026 guide for solo tax preparers and small bookkeeping firms to build a Written Information Security Plan that satisfies the FTC Safeguards Rule's nine elements, the IRS PTIN attestation, and the 30-day breach notification requirement — using IRS Publication 5708 as the scaffold and a 90-day rollout.
A practical guide to building a Written Information Security Plan that satisfies the FTC Safeguards Rule and IRS Publication 5708 — covering the nine required elements, technical controls like MFA and encryption, penalty exposure up to $46,517 per violation per day, and a six-week roadmap for tax preparers, CPAs, and bookkeepers.
A practical guide for small employers comparing the three IRS safe harbor 401(k) formulas — basic match, enhanced match, and 3% nonelective — alongside QACA auto-enrollment rules, SECURE 2.0 startup and contribution tax credits, notice deadlines, and the vesting and bookkeeping details that decide whether ADP, ACP, and top-heavy testing actually go away.
A 0.9% surtax applies to earned income above $200,000 (single) or $250,000 (joint), but employers withhold using a flat $200,000 per-job trigger. Form 8959 reconciles the two rules — generating a balance due for most dual-income couples and a credit for over-withheld single earners.
AIA G702 and G703 pay applications, schedules of values, retainage, WIP schedules, and over/underbilling reconciliations are what tie construction billing to GAAP revenue recognition under ASC 606. Here is how each piece works, why a $312 line error can delay a $1.4M wire by 41 days, and the patterns that rattle sureties.
