Equity compensation
RSU vest → ordinary income, withholding gap, sell-to-cover
Breaks down a restricted-stock-unit vest: ordinary income (fmv × shares), the flat supplemental withholding (22% to $1M, 37% above), the taxpayer's true marginal tax on the income (computed via the tax engine, so it captures bracket creep, NIIT, and the Additional Medicare Tax), the resulting under/over withholding gap, the sell-to-cover share count, and the per-share cost basis. Deterministic; not tax advice.
post/v1/equity-comp/rsu
Request
- Base URL: https://api.numeratica.com
- URL: https://api.numeratica.com/v1/equity-comp/rsu
- Auth: one of:
- HTTP bearer
- API key in header X-API-Key
Request body
Example request
{
"tax_year": 2025,
"filing_status": "single",
"other_ordinary_income": 150000,
"shares": 1000,
"fmv_at_vest": 50
}Response
RSU vest breakdown
Example response
{
"result_id": "eqc-rsu_1a2b3c4d5e6f7a8b",
"engine_version": "equity-comp-1.0.0",
"inputs": {
"tax_year": 2025,
"filing_status": "single",
"other_ordinary_income": 150000,
"shares": 1000,
"fmv_at_vest": 50
},
"result": {
"marginal_rate": 0.24
}
}Changes
No recorded changes to this operation across all 1 revision of this API.