Residency disputes often come down to where a person actually spent time and where his or her life was centered. Records created by third parties in the ordinary course of business, such as credit card statements and cell phone records, can help answer those questions, which is why they can become important in a California residency examination.
Why Location Records Matter
Two of the factors the Franchise Tax Board (FTB) lists in Publication 1031 for determining residency are the amount of time spent in California compared with time spent elsewhere, and the origination point of a person’s financial transactions. Time also matters under Revenue and Taxation Code (R&TC) section 17016, which presumes that an individual who spends more than nine months of the taxable year in California is a resident, unless satisfactory evidence shows the presence was for a temporary or transitory purpose.
Records that show where a person was on particular days, and where everyday spending occurred, speak directly to those factors.
Credit Card and Bank Records
Card and bank statements show the date of each transaction and the merchant involved. A pattern of routine purchases, such as groceries, fuel, pharmacies, and local services, can indicate where a person was living. Recurring charges, such as utilities, memberships, and services tied to a particular location, can show where a household was maintained and where social ties were.
These records have limits. Online purchases, charges made by a family member, and billing addresses do not always reflect where the cardholder was. Context matters, and a few transactions in one place rarely tell the whole story.
Cell Phone Records
Phone records may show the dates and general locations associated with calls or data use, depending on what information a carrier maintains. They also have limits: location information can be approximate, a phone may be used by someone else, and an area code says little, since many people keep a California number after moving.
Like any evidence, the weight given to phone records depends on what they actually show and how reliable they are.
Location records work in both directions. A taxpayer who keeps a calendar and travel log, reconciled to card statements, flights, and other records, can use the same kind of evidence to support the residency position on the return.
When the Records Conflict With the Return
If records show more time in California than the return reflects, the discrepancy should be addressed rather than ignored. Time in California does not automatically make someone a resident; what matters is domicile and whether the presence was for a temporary or transitory purpose, such as a short business trip or a brief visit. Explaining the purpose of each period in California, with supporting documents, addresses that legal question directly.
Organizing the Evidence
A practical approach is a day-by-day or week-by-week summary of the year that shows where the person was, with references to the supporting records. Pairing that summary with the other Publication 1031 factors, such as the principal residence, driver’s license, vehicle registration, voter registration, family location, and professional and social ties, gives a complete picture rather than an isolated set of transactions.
Responses to document requests should be complete but focused on what is requested. A representative can help manage the scope of a request and the presentation of sensitive records.
If the FTB Proposes an Assessment
If the FTB concludes that a person was a resident, it issues a Notice of Proposed Assessment. The taxpayer may protest within 60 days after the notice is mailed (R&TC § 19041), and the FTB’s decision on the protest can be appealed to the independent Office of Tax Appeals.
The Bottom Line
Credit card statements and phone records can be significant evidence of where a person spent time, but they are only part of the residency analysis. Keeping accurate records of time spent in and out of California, and understanding how those records relate to the factors in Publication 1031, puts a taxpayer in a stronger position in a residency examination.
Facing questions about your residency?
Tax attorney Cassra Minai, Esq. can review your records and the FTB’s requests in a confidential consultation.