A rights offering gives existing shareholders short-lived subscription rights to buy new shares, usually at a discount. In a taxable brokerage account at Fidelity, Vanguard, Schwab, or E*TRADE, you may need to track (1) whether receipt of the rights is taxable, (2) how to allocate cost basis between the old stock and the rights if you keep or exercise them, and (3) what happens if you sell the rights or let them expire. This is different from a simple stock split, where total basis usually stays put without a new instrument.
Account wrapper: Taxable brokerage account basics. Filing orientation: Filing taxes for beginners. Sale reporting: 1099-B basis adjustment basics.
Rights vs splits vs spin-offs
| Event | What you receive | Basis pattern | Typical current tax? |
|---|---|---|---|
| Forward stock split | More shares of same ticker | Per-share basis divides; total unchanged | Usually none until sale |
| Spin-off | New ticker shares | Allocate total basis across parent + spinco | Often nontaxable if conditions met—confirm |
| Rights offering | Short-term rights (may trade) | May allocate part of stock basis to rights; exercise adds paid-in cash to new-share basis | Receipt may be nontaxable if FMV is small vs stock; sale of rights is usually taxable |
| Cash dividend | Cash | Basis unchanged (unless return of capital) | Usually taxable in taxable accounts |
Issuer prospectuses and IRS Publication 550-style rules drive the details. Brokers sometimes automate lot updates after exercise; still read the corporate-action notice.
Educational pattern: receipt, sale, exercise, expiration
- Receipt: If the fair market value of the rights is small relative to the stock (classic “less than 15%” educational threshold in many IRS examples), you often do not include the rights’ value in income at receipt—and you may choose whether to allocate basis. If FMV is larger, different inclusion/allocation rules can apply. Confirm current IRS thresholds and the issuer notice.
- Allocate (when required or elected): Move a slice of your old stock’s basis to the rights using the FMV formula in the instructions (rights FMV ÷ (stock FMV + rights FMV) × stock basis).
- Sell the rights: Proceeds minus allocated rights basis ≈ capital gain or loss; holding period for the rights often begins when the rights were received.
- Exercise: New shares’ basis ≈ allocated rights basis (if any) plus the subscription price you pay; holding period for the new shares often begins on the exercise date—confirm.
- Expire worthless: You may have a capital loss equal to allocated basis in the rights (often short-term). If you never allocated basis to the rights, expiration may produce no deductible loss—another reason to track the election/rules carefully.
Worked example: $600 rights sale after allocation
Riley holds 200 shares of IssuerCo with $10,000 total basis ($50/share) at Vanguard. IssuerCo distributes transferable rights. On the distribution date, stock FMV is $40/share and each right’s FMV is $2 (illustrative). Riley receives 200 rights.
Using an educational allocation: rights FMV total = $400; stock FMV total = $8,000; combined = $8,400. Rights share of basis ≈ $400 / $8,400 × $10,000 ≈ $476. Stock basis remaining ≈ $9,524 (~$47.62/share).
Riley sells all 200 rights for $600 before they expire. Gain ≈ $124 ($600 − $476). If Riley instead lets the rights expire with $476 of basis allocated, the educational outcome is roughly a $476 capital loss—not “nothing happened.” If Riley exercises at a $35 subscription price, new-share basis per share starts from (allocated rights basis ÷ new shares) + $35, then tracks like any other lot.
Practical habits
- Save the rights prospectus, broker FAQ, and any Form 8937-style basis memo.
- Decide early: sell, exercise, or let expire—deadlines are short (often days or weeks).
- If you allocate basis, update both the old stock lots and the rights lots in your spreadsheet the same day.
- Watch for cash-in-lieu if exercise math leaves a fraction (Merger cash-in-lieu basics).
- Do not assume DRIP or automatic enrollment exercises rights for you without a notice.
- Fund investors: closed-end or mutual-fund rights inside a fund wrapper are usually handled at the fund level (Investing basics for beginners).
Checklist
- Read whether receipt is taxable and whether basis allocation is required or elective.
- Calendar the expiration and exercise cutoff in the broker portal.
- Record FMV figures used for any allocation formula.
- If you sell rights, match 1099-B proceeds to allocated basis.
- If you exercise, add cash paid to basis on the new shares.
- If rights expire, confirm whether you have allocated basis that supports a loss entry on Form 8949.
Educational only. Not tax, legal, or investment advice. Rights-offering tax treatment is technical and fact-specific; verify with current IRS publications (including Pub 550), Form 8949 / Schedule D instructions, the issuer prospectus, and a qualified tax professional.