Identify the U.S. taxpayer and foreign property
A U.S. business owner acquires an office or workshop outside the United States and expects to copy the domestic depreciation schedule. IRS Publication 946 generally requires the Alternative Depreciation System for tangible property used predominantly outside the United States, subject to specified exceptions. ADS uses straight-line methods and its own recovery periods. A foreign nonresidential building generally has a 40-year ADS recovery period rather than the ordinary 39-year domestic GDS period.
Start with the ownership structure and actual use. Direct ownership, a foreign corporation, a partnership, and a leased facility can create different reporting obligations and different taxpayers entitled to deductions. The fact that the owner lives in the United States does not make foreign premises domestic property. Likewise, domestic financing does not determine the depreciation system. Establish the legal asset owner, business purpose, location, and applicable exception analysis before building the U.S. opening schedule.
Use a limited depreciation comparison
Assume a hypothetical U.S. taxpayer directly owns a foreign commercial building with a properly determined U.S.-dollar depreciable basis of $800,000, excluding land. If the stated ADS facts apply, the full-year straight-line amount over 40 years is $20,000 before first- or last-year convention adjustments. A domestic 39-year GDS comparison would produce approximately $20,513 for a full year. The difference is modest for the building alone, but the method must still be correct.
The more significant error can arise if the owner assumes domestic accelerated provisions apply to equipment or improvements abroad. Section 179 generally excludes property used predominantly outside the United States except specified property, and other depreciation benefits have their own requirements. Evaluate each asset separately. This example is not a foreign-tax computation or a currency-conversion instruction. It simply shows why a U.S. depreciation file must identify location and system before importing assumptions from the owner's domestic property.
Keep local accounting and U.S. tax accounting connected
The foreign jurisdiction may use different depreciation periods, capitalization rules, and reporting currency. Keep a reconciliation from local books to the applicable U.S. tax treatment rather than replacing one with the other. Record transaction dates, currency amounts, exchange-rate support, and the resulting U.S.-dollar basis analysis. Financing and later currency movements may raise separate issues that should not be posted casually to the building account.
Obtain local acquisition documents, title evidence, land allocation, taxes, and closing costs with translations where necessary for review. Verify which charges acquire the property and which relate to financing or current occupancy. A foreign annual property charge may not correspond to the U.S. category suggested by its translated label. Assign responsibility for obtaining local information and explaining it to the U.S. preparer. The owner's operating team should not assume that a local accountant's fixed-asset register is a complete U.S. tax workpaper.
Compare ownership with a local lease
The premises decision involves more than the difference between 39 and 40 years. Model purchase cash, local financing, maintenance, title and transfer costs, currency exposure, and exit liquidity against leasing suitable space. Include the cost of managing records across jurisdictions and the possibility that the business expansion underperforms. A property that is hard to sell can constrain a retreat from the foreign market even if it was attractive at acquisition.
Use multiple currency and occupancy assumptions in the operating forecast, keeping tax figures labeled by jurisdiction. Foreign tax credits, entity information returns, withholding, and other reporting can affect the broader result, but they should be analyzed from the actual ownership arrangement rather than inferred from a building depreciation example. The owner needs a coordinated acquisition plan before closing, with named responsibility for U.S. and local workstreams and a calendar of the obligations each preparer will handle.
Preserve a cross-border asset file
Keep the legal ownership chart, purchase agreement, local title records, basis allocation, currency support, placed-in-service evidence, ADS analysis, and both local and U.S. depreciation schedules. Reconcile additions and disposals annually. Flag changes in property use or ownership before revising the schedule. The file should explain why ADS applies and which recovery periods were selected. This makes the premises history reviewable when the business changes accountants, refinances locally, or eventually sells the foreign property.
Sources & further reading
Consult the original guidance and its effective dates. These references support the educational discussion; their application depends on the specific facts.