North Carolina Supplemental Tax Regulations for Stripe RSUs
North Carolina has a flat 4.50% individual income tax rate. Supplemental wages are withheld at 4.50%, minimizing the state-level tax variance.
North Carolina Safe Harbor & Underpayment Penalties
Form NC-40 estimated payments due quarterly.
Employer Stock Plan Specifics: Carta / Morgan Stanley at Work
Stripe employees with settled RSUs or participating in internal secondary tender offers face tax withholding at 22% statutory rates. Because shares are illiquid outside tender windows, underwithholding is hazardous: you cannot easily sell additional shares later to satisfy your April IRS obligation.
When vesting at Stripe, Carta / Morgan Stanley at Work calculates automatic sell-to-cover withholding using North Carolina's statutory supplemental rate of 4.50% combined with the federal supplemental rate (22% on up to $1M). Because top earners in North Carolina reach marginal brackets exceeding these rates, you will face an incremental shortfall on April 15.
Localized CPA & Advisory Referral
Advisor Guidance: Match with a Research Triangle CPA to optimize multi-year tech equity vesting and NC NC-40 estimated vouchers.