#stock-basis
Track stock cost basis for accurate investment accounting
Brokers often report a wrong or zero cost basis on Form 1099-B, especially for RSUs and ESPP shares. This guide explains covered vs. noncovered securities, Box 1e and Box 5, and how Form 8949 adjustment code B corrects basis so you do not pay tax twice on the same income.
Form 1099-B Box 1e shows your broker's cost basis, but Box 5 determines whether the IRS sees it. A working guide to covered vs. noncovered securities, Form 8949 adjustment codes (B, W, Q, O, T), and the RSU/ESPP basis corrections that prevent double-taxation.
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%.
The OBBBA raised the Section 1202 QSBS cap to $15 million, lifted the gross-asset ceiling to $75 million, and replaced the five-year cliff with a tiered 50/75/100 percent exclusion at three, four, and five years — but only for stock issued after July 4, 2025.
Section 1377(a)(2) lets an S corporation split its tax year when a shareholder fully exits, allocating pass-through items to the period each owner actually held stock. This guide covers when the election is available, who must consent, the 1.1368-1(g) alternative, and the bookkeeping it demands.
A Section 83(b) election lets founders and early employees pay ordinary income tax today on the full value of restricted stock instead of at each vest. Filed within 30 days on IRS Form 15620, it can convert millions of phantom ordinary income into long-term capital gain and start the QSBS holding clock on day one.
Lifetime gifts under IRC Section 1015 carry over the donor's basis, while inheritance under Section 1014 steps it up to fair market value at death — a difference that can shift a family's after-tax outcome by six figures on a single appreciated position under the 2026 $15 million federal exemption.
A practical guide to Section 302 stock redemptions in closely-held C corporations — when a buyback gets capital gain treatment versus dividend treatment, how Section 318 family attribution disqualifies most family redemptions, and how the four 302(b) tests plus the 302(c)(2) waiver preserve sale treatment.
Section 302 of the Internal Revenue Code decides whether a closely-held C corporation's stock redemption is taxed as a capital sale or a full-amount dividend. This guide explains the three Section 302(b) tests, the Section 318 attribution traps that ensnare family-owned companies, the 10-year family-attribution waiver, and the partial-liquidation safe harbor under Section 302(b)(4).
A practical guide to Section 1015 carryover basis versus Section 1014 stepped-up basis, the dual basis trap for depreciated assets, and the 2026 decision framework for whether to gift appreciated property now or hold until death under the permanent $15 million exemption.
How the Intentionally Defective Grantor Trust (IDGT) installment sale freezes estate value at today's AFR, why Revenue Ruling 2023-2 ended the basis-step-up shortcut for grantor trust assets, and the formalities that decide audit outcomes.
Exercising and holding ISOs adds the bargain element to AMTI on Form 6251 Line 2i, which can produce a six-figure tax bill before a single share is sold. A 2026 guide to the tightened AMT exemption phase-out ($500K single / $1M MFJ at 50¢ per dollar), the qualifying disposition rules under IRC §422, and the planning moves — AMT crossover exercise, §83(b) early exercise, same-year disqualifying sale, and multi-year laddering — that keep tech employees out of the trap.
