You search for an RSU tax rate in Missouri — St. Louis, Kansas City, remote for a MO employer — and want effective tax on vest FMV including MO state tax plus federal and FICA.
Start here
What you need before using this
- MO residency for year.
- confirmation and MO on pay stub.
- MO wage boxes.
- Missouri DOR rate guidance for filing year.
- tax calculator with Missouri selected.
Missouri tax rates follow Missouri Department of Revenue guidance for the filing year.
Why this happens
MO treats equity compensation at as taxable wages.
Progressive MO state rates apply to taxable income including .
Federal progressive tax applies separately on .
FICA applies nationwide on wages.
MO supplemental on equity may use flat methods that under- vs stacked .
Moving from MO to no-tax state mid-year triggers part-year MO return.
Moving from IL to MO changes state layer on post-move vests.
Remote MO resident for out-of-state employer still typically MO taxes wages.
Estimated federal and MO tax may be needed when falls short.
tax rate Missouri searches often mean combined MO federal FICA planning.
Compare to Illinois and Indiana rate guides for Midwest moves.
Stock options and same MO wage treatment when MO-sourced.
Boxes 16–17 include in MO wages when MO payroll applies.
Legislative changes — confirm rates for filing year.
gap often shows up at federal layer even when MO state looks reasonable.
What to check
- MO state on pay stub.
- MO wage and tax boxes.
- Federal Box 1 and .
- MO with total income for filing year.
- Federal gap vs .
- Move date if part-year MO.
- Calculator output vs pay stub.
- Missouri DOR pub for current year.
Using a single Missouri percentage from an old blog for RSU planning
What to check in your documents
- MO pay stub.
- MO boxes.
- confirmation.
- MO estimated tax if made.
- Move docs if part-year.
Kansas City employee with $29,000 quarterly vest
Illustration only, not your tax situation.
Questions people ask
- What is the RSU tax rate in Missouri?
- No flat rate — MO progressive state tax plus federal plus FICA on , based on total income.
- Are RSUs taxed in Missouri?
- Yes for typical MO residents on MO-sourced wages.
- Missouri vs Texas RSU tax rate?
- Missouri taxes wages. Texas has no state wage income tax for typical residents.
- MO RSU supplemental withholding?
- Employers may use MO supplemental methods on equity — may not match final .
- Moved from Missouri to Florida?
- MO may tax pre-move connected income. Post-move FL vests avoid FL state income tax for typical residents.
- Remote worker in Missouri RSU tax?
- MO resident generally owes MO tax on wages.
- Which calculator for MO RSU?
- tax calculator with Missouri selected and gap calculator.
- W-2 MO boxes for RSU?
- State wage and tax boxes reflect when MO payroll applies.
- FICA on Missouri RSU vest?
- Federal FICA on until wage base cap.
- Related guides?
- Missouri tax guide, Illinois rate guide, moving states overview, effective tax rate.
When to get help from a tax pro
- Part-year MO resident with large equity income.
- KC metro cross-border with conflicting state boxes.
- Employer withheld wrong state on MO resident .
- Multi-state remote work allocation.
Related calculators
- RSU Tax Calculator
Model federal and state taxes on your RSU vest, compare withholding to estimated tax, and see what you may keep.
- RSU Withholding Gap Calculator
Focus on the gap between what your employer withholds on RSU vests and what you may owe when everything is reconciled.
- RSU State Tax Comparison Calculator
Run the same RSU vest through different state assumptions to see how location may change estimated tax.
Related pages
- Missouri RSU Tax Guide
Missouri taxes RSU vest wages; KC metro cross-border and part-year moves need residency review.
- RSU Tax Rate in Illinois
Illinois applies flat state income tax to RSU vest wages — federal marginal tax and FICA still apply on top.
- RSU Tax Rate in Indiana
Indiana applies state income tax to RSU vest wages — county tax may add a local layer; federal and FICA still apply.
- RSU Taxes When Moving States
Moving mid-year can mean more than one state has a claim on part of your compensation — planning beats guessing.
- RSU Effective Tax Rate Explained
There is no flat RSU tax rate — effective tax on vest FMV includes federal, FICA, and state components that change with your total income.
Sources and notes
Primary tax claims on this page are supported by the official and secondary sources below. Broker and software links describe reporting mechanics — confirm rules against IRS or state guidance.
Missouri progressive income tax on vest wages; confirm current MO DOR rates.
- Missouri Department of Revenue — Individual Income Tax
Missouri Department of Revenue · Official
Missouri individual income tax overview and withholding guidance.
- IRS Publication 525 — Taxable and Nontaxable Income
Internal Revenue Service · Official
Covers compensation income from stock-based pay, including restricted property under section 83.
For learning, not filing
VestingTax.com is not a CPA firm or tax preparer. Grants, employers, and states all differ. Use the cited IRS and state sources above, your own documents, and a qualified tax professional before you make decisions from this guide.