Virginia Supplemental Tax Regulations for Microsoft RSUs
Virginia taxes taxable income over $17,000 at a top rate of 5.75%. Employers withhold supplemental wages at 5.75%.
Virginia Safe Harbor & Underpayment Penalties
Virginia 760ES quarterly payments.
Employer Stock Plan Specifics: Fidelity Investments
Microsoft employees in Redmond, WA enjoy 0% state income tax on vesting wages, but face the full federal marginal spread. For senior SDEs and Partners whose base exceeds the $184,500 Social Security cap, every incremental vest dollar is taxed at 35% or 37% plus 2.35% Medicare.
When vesting at Microsoft, Fidelity Investments calculates automatic sell-to-cover withholding using Virginia's statutory supplemental rate of 5.75% combined with the federal supplemental rate (22% on up to $1M). Because top earners in Virginia reach marginal brackets exceeding these rates, you will face an incremental shortfall on April 15.
Localized CPA & Advisory Referral
Advisor Guidance: Connect with a Northern Virginia tech CPA to manage quarterly 760ES vouchers for Amazon HQ2 & tech equity compensation.