A working guide to Rollover as Business Startup (ROBS) arrangements — the five required steps, why only a C corporation qualifies, the Form 5500 and prohibited-transaction rules, IRS-documented failure rates, and when alternatives like SBA loans or 401(k) participant loans make more sense.
A Roth conversion ladder converts traditional IRA dollars to Roth in annual tranches, each unlocking penalty-free five tax years later — the core mechanism FIRE retirees use to tap pre-tax accounts before age 59½ while filling low tax brackets.
How Rule 72(t) Series of Substantially Equal Periodic Payments (SEPP) lets retirees tap an IRA or 401(k) before 59½ without the 10% early-withdrawal penalty — covering the three IRS calculation methods, the 5% interest-rate floor from Notice 2022-6, and the recapture-tax mistakes that bust early retirement plans.
Schedule M-1 and M-3 reconcile a corporation's GAAP book income to taxable income. This guide explains the $10M and $50M asset thresholds, permanent versus temporary differences, and the recurring reconciling items — depreciation, meals, federal tax expense, bad debt reserves, and stock-based compensation — that draw IRS scrutiny.
How Section 121 lets U.S. homeowners exclude up to $250,000 ($500,000 for joint filers) of capital gains on a primary home sale — covering the 24-month ownership and use tests, the two-year frequency rule, partial exclusions, depreciation recapture, and the nonqualified-use allocation.
OBBBA permanently restored the EBITDA-based ATI calculation for Section 163(j) starting in 2025, expanding deductible business interest for capital-intensive companies. A guide to the 30% cap, the ~$31M small business exemption, the 35% syndicate trap, EBIE allocations from partnerships, S-corp differences, and Form 8990 reporting.
Section 199A lets investors deduct 20% of qualified REIT dividends from taxable income, dropping the top federal rate from 37% to about 29.6%. This guide covers Box 5 of Form 1099-DIV, the 45-day holding-period rule, Form 8995, and how OBBBA made the deduction permanent.
Section 25D's 30% residential clean energy credit ends December 31, 2025 under the OBBBA. How to file the final-year claim on Form 5695, carry unused credit forward indefinitely, and use TPO leases or Section 48E to capture value in 2026.
Section 280E bars cannabis businesses from deducting ordinary expenses, pushing federal effective tax rates past 70%. A walkthrough of the math, the COGS lever under Section 471, key Tax Court rulings (CHAMP, Olive, Harborside), and what 2026 rescheduling could change.
