Nonresident individuals and out-of-state companies often make loans to California-based borrowers. It’s not unusual for those promissory notes to be secured with California real estate. The scenarios take many forms. A person may inherit the note from a parent, or they may feel obliged to make a loan to a child purchasing their first home. Or the note may be on the books of an out-of-state company as a result of the sale of assets or a subsidiary to a California buyer. Clients in these circumstances often ask me whether the interest from the note is California-source income. The short answer is, generally no. The long answer is, it depends.
Why It Matters
It obviously makes a financial difference if loan interest is California-source income. Nonresidents are taxed by California on income sourced to this state. If the interest on such loans are California-source income, the nonresident must file a nonresident return and pay California income taxes. An analogous situation applies to out-of-state companies that hold such notes. If the interest is revenue sourced to California, the lender is “doing business in California” and owes California taxes on that revenue. But even if the amount of tax is minor, there may be a larger downside. For nonresidents, a California income tax reporting requirement means that the Franchise Tax Board, California’s tax enforcement agency, will know everything about the taxpayer’s global income. That’s because the nonresident must attach a federal return, Form 1040, to the nonresident state return, Form 540NR. It’s not the end of the world, and it by no means guarantees a residency audit, but if the person’s global income is particularly high, and if there are indications of other significant contacts with California, then it could increase the chances of the FTB initiating a residency audit, something that promises unique unpleasantries for nonresidents. See, California Residency Audits: Three Year-End Tasks to Reduce the Risk for Nonresidents.
For business entities, having California-source income raises similar complications. An out-of-state company doing business in California has to register as a foreign entity and file all appropriate entity tax returns, regardless of how de minimis its California taxable income is. And, if the entity is a pass-through, the reportable California-source income may also require the principals to file nonresident returns. A double whammy.