Texas Supplemental Tax Regulations for Nvidia RSUs
Texas levies zero personal income tax on supplemental wages, RSU vests, or capital gains. Your statutory withholding is restricted exclusively to Federal supplemental (22%/37%) and FICA (Medicare/Social Security).
Texas Safe Harbor & Underpayment Penalties
No state safe-harbor required.
Employer Stock Plan Specifics: E*TRADE by Morgan Stanley
Due to Nvidia's dramatic stock appreciation, refresher and historical grants produce astronomical vest values. Once your cumulative supplemental wages cross $1,000,000 within a calendar year, E*TRADE increases withholding from 22% to 37%, creating an intra-year cash flow whipsaw.
When vesting at Nvidia, E*TRADE by Morgan Stanley calculates automatic sell-to-cover withholding using Texas's statutory supplemental rate of 0.00% combined with the federal supplemental rate (22% on up to $1M). Because top earners in Texas reach marginal brackets exceeding these rates, you will face an incremental shortfall on April 15.
Localized CPA & Advisory Referral
Advisor Guidance: Pair with an Austin tech CPA to model federal safe-harbor withholding and optimize post-vest equity liquidation.