What is the depreciation rate on air conditioner?
James Craig
Published Feb 28, 2026
Part A Tangible Assets:
| Asset Type | Rate of Depreciation |
|---|---|
| (vi) FACT (Flexible AC Transmission) devices, Thyristor controlled series compensation equipment | 40% |
| (vii) Thermally energy-efficient stenters | |
| (viii) Series compensation equipment | |
| (ix) TOD (Time of Day) energy meters |
How long do you depreciate an AC unit?
Yes, it is depreciated over 27.5 years. No, you don’t keep depreciating it after it is gone. When the old AC is gone, you report that disposition (essentially you sold it for $0) and the undepreciated amount will show up as a loss on Form 4797.
Is replacing an air conditioner a repair or improvement?
You may also want to know the difference between improvements and repairs for things that may be considered necessities like heating or air conditioning units. If you have to replace the entire system instead of just fixing it, it is considered an improvement.
How long does it take to depreciate a HVAC unit?
Both HVAC units are more than 2% of the unadjusted basis for their respective properties. I would normally depreciate the HVAC unit for 27.5 yrs. However, can I use either section 179 depreciation or the 100% bonus depreciation for either of the units?
Is there a depreciation allowance for HVAC in 2020?
Depreciation for HVAC in 2020 SEC179 is not applicable to residential rental real estate. But you can use the SDA (Special Depreciation Allowance) if you want. It probably won’t be beneficial to you, since rental property with a mortgage generally operates at a loss on paper each year anyway.
How much does an 8, 000 BTU AC unit cost?
The overall cost of every 8,000 BTU AC doesn’t really depend on the unit price: It depends on energy-efficiency. In 10 years, you might pay as little as $800 or as much as $1,500 in electricity bills for an 8,000 BTU air conditioner. The difference?
When to claim the cost of an air conditioner?
The Internal Revenue Service expects that an air conditioner will have a useful life of more than one year. They require that you claim a portion of the cost of the air conditioning unit in your tax filings for each year of its useful life. To do this, you will need certain pieces of information.
