RSU tax documents checklist: what to save before you file

Collect documents as vests happen so filing season is paperwork, not archaeology.

You are preparing to file (or planning ahead) and want a single list of paperwork that connects RSU vest income on your W-2 to 1099-B sales. This checklist is for U.S. employees with standard RSU grants — not a substitute for a CPA reviewing your return.

In plain terms

Save confirmations, pay stubs from periods, your , forms, and any broker supplemental statements. records are what let you fix $0 basis on sales and avoid reporting the same dollars twice.

Gather before you start

  • List each and whether you still hold or sold those shares.
  • Download year-end equity summaries from Schwab, Fidelity, E*TRADE, or your plan admin.
  • Gather and for the same tax year before opening tax software.
  • Note any state move dates if you relocated during the year.

Document list for educational planning. Your plan administrator and broker labels may differ.

How the tax works

value is wage income — it should appear on your when shares .

When you sell, the broker reports proceeds on but often not the as basis.

Without records, software imports $0 basis and overstates .

State moves add residency and sourcing documents that payroll may not summarize for you.

What to check on your end

  • Each confirmation: shares, per share, tax withheld, net shares delivered.
  • Box 1 includes amounts for the year.
  • proceeds match sales you remember; basis field is not blank or zero without a reason.
  • Supplemental lot report ties sold shares to specific dates.
  • Move records if you changed state mid-year.

Waiting until April to find vest prices

Saving each confirmation when it happens turns filing into matching paperwork instead of archaeology. Brokers rarely reconstruct basis for you after the fact.

What to pull from your files

  • confirmations (PDF from equity portal after each ).
  • Pay stubs showing supplemental on pay periods.
  • (wages, federal/state , Box 14 notes if present).
  • and broker supplemental stock plan statement.
  • Grant agreement and schedule (for grant type and timing).
  • Lease, tax return, or domicile records for state moves.

Example scenario (hypothetical)

Illustration only, not your tax situation.

Example: Morgan keeps a folder with each year's , , and confirmations. When a sale shows $0 basis, Morgan pulls the matching confirmation and adjusts basis on Form 8949 in minutes instead of guessing.

Questions people ask

Do I need documents if I never sold RSU shares?
You still need and confirmations for the year — the wage event already happened. Sales documents matter when you sell and receive .
Why does my broker send a supplemental statement?
Many brokers issue a separate stock plan report with and adjusted basis suggestions. It is not always transmitted to the IRS on , but it helps you file correctly.
What should I ask a tax professional?
Bring this checklist plus your forms. Ask them to reconcile wages to sales, confirm basis adjustments, and review state sourcing if you moved.

When a CPA is worth it

  • records are missing and shows $0 basis on large sales.
  • You had multiple employers, brokers, or states in one year.
  • You received corrected or after filing.
  • You mix with exercises or in the same year.

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.

Document checklist for reconciling W-2 vest wages to 1099-B sales.

Related calculators

Related pages

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.

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