vestingtax.com
RSU tax calculator

Two W-2s and RSU vests in one year: job change tax checklist

Each employer reports its own RSU vest FMV on its W-2 — combined income can outpace withholding from either job alone.

Rates and rules change. Content is reviewed for tax year 2026. Check the last-reviewed date and methodology on each page, then confirm against IRS or state guidance before you file.

Spot an outdated rate or date?

We update when we can, but we miss things. Send a link to the official source if you have one.

Email us

You changed jobs and received two Form W-2s — each may include RSU vest wages from a different employer. You need to know how Box 1 stacks, why withholding fell short, and which vest confirmations belong to which W-2.

In plain terms

Each employer reports its own in Box 1 on its . The IRS adds all Box 1 wages on one Form 1040. from each job used separate W-4 settings and supplemental rates — neither payroll saw your full-year income. vests from the old job stay on the old even if shares are now in the same brokerage account as new employer grants.

Gather before you start

  • Both Form W-2s for the tax year.
  • confirmations labeled by employer and date.
  • Pay stubs around each if looked low.

How the tax works

reporting is per employer, per calendar year. When you leave Company A in April and join Company B in May, Company A's includes salary and any through your last day. Company B's includes salary and vests after your start date. Two W-2s is normal — not an error.

income follows the same rule. A March at Company A appears only on Company A's . A September at Company B appears only on Company B's . Moving shares between brokers does not move wage reporting.

is also per employer. Each company withholds as if its wages were the main event. Supplemental flat on a large at Company A does not tell Company B to extra on salary. Combined income can push you into a higher bracket than either employer modeled.

Social Security tax may have been withheld twice up to the wage base — once at each employer — with excess credit on Form 1040 if total wages exceeded the cap. Medicare and Additional Medicare Tax still apply on combined wages.

If you sold shares from both employers' vests, proceeds appear under one broker account but basis ties back to two different confirmations and two wage amounts.

What to check on your end

  • Sum of Box 1 on both W-2s vs your own spreadsheet of salary plus each .
  • Which confirmation matches which employer EIN on the .
  • Federal totals on both W-2s vs estimated tax on combined income.
  • Social Security Box 4 on both W-2s if combined wages exceed the wage base.
  • sales matched to correct from the right employer's confirmation.

Assuming the new employer's payroll knows about the old RSU vest

Company B's W-4 does not include Company A's March . You must increase at the new job or make estimated payments yourself.

What to pull from your files

  • from each employer with Box 1 and Box 2.
  • confirmations sorted by employer.
  • if shares sold from either grant.

Vest at old job, salary at new job

Illustration only, not your tax situation.

Morgan left Company A in March after a $22,000 on Company A's with 22% federal . Morgan joined Company B in May at higher salary with no until December ($18,000 ). Combined wages push Morgan into a higher bracket than either employer withheld for. Morgan uses the gap calculator with both vests and increases W-4 at Company B in November.

Questions people ask

Do I attach both W-2s to one return?
Yes. Tax software adds all wages into one Form 1040.
RSU from old job — which W-2?
The employer that ran payroll on the reports the wages.
Two W-2s vs two states on one W-2?
Different problems. Two W-2s means two employers. Two states on one means one employer split state wages — see the two-state guide.
Which guide for vest between jobs?
See between jobs for timing and focus.

When a CPA is worth it

  • Same appears on both W-2s.
  • Company A omitted a you have confirmation for.
  • Complex or exercises at one employer plus at another.

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.

Multiple Form W-2 wage reporting when RSU vests occur at more than one employer.

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.

Editorial standardsDisclaimer