Residency
Documents
Both passports, with their expiry dates
The document vault holds every passport and warns you before one runs out.
Why it matters
Entry rules attach to the passport you show. One of yours may be waved through for months where the other needs a visa. Residency keeps both and uses the one with the longer stay when it plans a trip.
Enter and leave on the same passport
Use one passport for the whole visit to a country, and check whether either of your countries expects you to enter on its own passport.
Questions
Which passport should a dual citizen use?
The one that gives the longer visa-free stay at your destination, used for both entry and exit. The comparison above shows which that is.
What are you counting for?
Substantial presence testWork out the IRS weighted day count.
Schengen calculatorCount your 90/180 days across several trips.
VisasStay inside Schengen and visitor visa limits.
Tax residencyBecome resident, or stay non-resident, on purpose.
CitizenshipPhysical presence toward citizenship or permanent residence.
Plan a tripSee what a trip does to your limits before you book.
Trip historyEvery country visit, rebuilt from your photos.
DocumentsPassports, permits and visas with expiry alerts.
Visa-free stays by passportHow long you can stay, by passport and destination.
A day counter for people who move countries
Residency is on the App Store, for iPhone.
