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What Is Accelerated Depreciation and Why It Matters for San Diego STR Owners

ADVICE Josh Taylor. March 3, 2026

Accelerated depreciation is a tax strategy that allows short term rental owners to front load their depreciation instead of spreading it evenly over 27.5 years.

Normally, residential rental property is depreciated over decades. However, with accelerated depreciation, you can separate out components of the property that have shorter useful lives and depreciate them faster. This can create significantly larger deductions in the early years of ownership.

For San Diego short term rental investors, this can mean:

  • Lower taxable income in year one

  • Increased cash flow

  • Ability to offset 1099 income

  • Faster reinvestment into additional properties

When paired with short term rental status and proper material participation, accelerated depreciation can be a game changer for self employed professionals, business owners and high income earners looking for legal tax reduction strategies.

If you are investing in a San Diego Airbnb or vacation rental, understanding accelerated depreciation, STR tax benefits and bonus depreciation is critical to maximizing your return.


What Is Cost Segregation and How Does It Help You Write Off More Taxes?

Cost segregation is the engine behind accelerated depreciation.

Instead of depreciating your entire property as one single asset over 27.5 years, a cost segregation study breaks the property into individual components such as:

  • Appliances

  • Flooring

  • Cabinetry

  • Lighting

  • Plumbing fixtures

  • Landscaping

  • Certain structural elements

Many of these components can be depreciated over 5, 7 or 15 years instead of 27.5 years. When combined with bonus depreciation, you may be able to write off a substantial portion of these components in the first year.

For San Diego STR owners, this strategy can:

  • Offset active 1099 income

  • Reduce federal and state tax liability

  • Improve short term rental cash flow

  • Increase overall return on investment

Cost segregation for short term rentals is especially powerful when you materially participate in the management of the property. That is why we work alongside experienced tax professionals who understand STR tax planning in San Diego.

If you are researching cost segregation in San Diego, Airbnb tax deductions or short term rental depreciation strategy, this is where real wealth building begins.

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