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Business Structure

Choose and optimize your business entity for tax and legal advantages

The Section 1375 Sting Tax: How Former C Corps Pay 21% on Passive Income and Lose Their S Election After Three Years

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: How S Corporations Trigger the 21% Passive Income Tax and a Three-Year Termination Cliff

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 7874 Anti-Inversion Rules: 60%/80% Ownership Tests and the Substantial Business Activities Safe Harbor

Section 7874 imposes a 10-year inversion-gain floor when former U.S. shareholders own 60-80% of a new foreign parent and reclassifies the parent as a domestic corporation at 80%. The only escape is the substantial business activities safe harbor, which requires clearing a 25% bright-line threshold on employees, tangible assets, and gross income in the foreign country.

Subchapter T Patronage Dividends Explained: How Co-ops Avoid Double Tax, Issue Qualified and Nonqualified Written Notices of Allocation, and Report Member Distributions on Form 1099-PATR

How Subchapter T lets U.S. cooperatives deduct patronage dividends and avoid corporate double tax — covering the 20% cash floor for qualified written notices of allocation, the post-2017 shift toward nonqualified treatment, per-unit retains, Form 1099-PATR box-by-box reporting, Section 199A(g) for specified ag co-ops, and the recordkeeping that turns a deduction into a defensible one.

Section 199A QBI Aggregation Election Under Reg 1.199A-4: How Pass-Through Owners Combine Commonly Controlled Trades or Businesses to Beat the W-2 Wage and UBIA Limits

The Section 199A aggregation election under Reg 1.199A-4 lets pass-through owners combine commonly controlled trades or businesses before applying the W-2 wage and UBIA of qualified property limitation. This guide walks through the five eligibility tests, the Form 8995-A Schedule B disclosure, the irrevocable consistency rule, and when pooling QBI across an operating-and-leasing or multi-entity structure actually unlocks more deduction.