Moving out of California before exercising stock options does not necessarily end California tax. Learn how California sources option income to prior California services and how the rules differ for nonstatutory options, incentive stock options, ESPPs, capital gains, and alternative minimum tax.

California business owners and nonresident investors face complex rules involving income sourcing, nexus, partnerships, S corporations, and business sales. This updated guide explains California multistate taxation and the important 2026 OTA decision rejecting the FTB's Section 751(a) partnership interest sourcing position.

Moving out of California does not necessarily end California income tax. Learn how California determines residency, domicile, part year status, and California source income, including wages, business income, investments, real estate, and income received after a move.

California estate and trust taxation depends on more than where a trust was created. Learn how Form 541, decedent residency, trustees, noncontingent beneficiaries, California source income, Schedule G, and beneficiary distributions determine California tax.