Free Tools
Free state residency and tax tools
Five free, no-login tools computed from the same 56 researched state and territory dossiers that power the ResidencyIQ migration guides. No signup, no paywall, every number and rule traces to a cited source.
General information, not tax or legal advice. Each tool has its own methodology and sources section.
Comparison Intent
State Tax Savings and Exposure Calculator
Enter your income, pick an origin and destination state, and see the real 2026-bracket tax delta, plus the audit exposure that determines whether the savings actually survive.
Open the toolProof Intent
Google Timeline Day Counter
Drag in your Google Timeline export and see days per state, per year, checked against each state’s actual statutory threshold. Parsed entirely in your browser: the file never leaves your device.
Open the toolProof Intent
183-Day Rule Checker
Pick a state, enter your days or build date ranges, and get a red, yellow, or green verdict against that state’s actual statutory residency test, not a generic 183-day approximation.
Open the toolEstablishment Intent
Domicile State Quiz
A scored, 7-question quiz for nomads, full-time RVers, and mobile expats choosing among South Dakota, Florida, Texas, and Nevada, cited to each state’s actual establishment and audit rules.
Open the toolPersona Intent
Travel Nurse Tax Home Checker
Answer 7 yes or no questions built on the IRS one-year rule and tax-home criteria, and get a specific verdict on whether your tax-free stipends are actually protected.
Open the toolFor developers and advisor sites
Embed Our Tools
Free, attribution-required iframe embeds of the tax calculator and the 183-day rule checker. Drop a live, cited tool into your site with one snippet.
Read the docsPublic API
Unauthenticated, rate-limited JSON endpoints for the tax delta calculator and each jurisdiction’s residency rules, with source citations in every response.
Read the docsBuilt from the same dossiers as the migration matrix
Every tool on this page reads from the same researched, sourced state and territory dossiers behind ResidencyIQ’s 56 jurisdiction guides and migration comparison pages. A threshold, rate, or rule shown here matches what the corresponding state guide cites.
Browse all 56 jurisdiction guidesPopular residency guides
Researched state, corridor, and tool references built from the same 56 jurisdiction dossiers that power ResidencyIQ.
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