Pressure-test inputs
Run a base case and a conservative case. A decision that works only under perfect assumptions needs more diligence.
Turn a year of assignments into a work-state map and filing checklist without presenting the work-state screen as a total tax balance.
Mapped assignment income
$195,000
105 workdays across 2 work states
Work-state gross tax screen
$10,675
Work-state amounts only; resident-state tax and credits are not calculated
Work-state tax less entered withholding
$10,675
$0 entered work-state withholding; this is not a balance due or refund
| Work state | Type | Income | Screened tax | Action |
|---|---|---|---|---|
| WI | 1099 | $110,000 | $5,830 | Check nonresident filing and estimates |
| IA | 1099 | $85,000 | $4,845 | Check nonresident filing and estimates |
Educational estimate, updated August 23, 2026. This is a work-state filing screen, not a resident or nonresident return calculation. It does not calculate resident-state tax, resident credits, reciprocity eligibility, brackets, deductions, local taxes, nexus, allocation rules, de minimis thresholds, community property, or state-specific 1099 rules.
Written by Bryan Martin, CPA, Managing Partner and Founder of Taxstra.
How to use the result
The result is designed to expose the variables worth investigating, not to replace transaction documents, tax returns, or professional judgment.
Run a base case and a conservative case. A decision that works only under perfect assumptions needs more diligence.
A tax benefit cannot rescue weak economics. Evaluate operating cash, financing, and tax effects separately.
Save the source documents and assumptions a CPA will need to validate the treatment.
Take the next planning step
The useful answer stays on the page. Share your contact information only if you want Taxstra to follow up about the planning questions this tool surfaced.
These answers explain the model’s boundaries.
Compensation is commonly sourced to where services are performed, while the resident state may also tax worldwide income and may allow a credit. State-specific rules control.
Not always. Reciprocity generally affects wages and withholding between specific states; 1099 income, registration, estimated payments, and resident filings can differ.
A flat effective rate keeps the screen transparent. Actual state brackets, deductions, local tax, credits, and thresholds require state-specific calculations.
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