v3.25.4
Intangible Assets, Net
12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets, Net Intangible Assets, Net
The following tables present the detail of intangible assets, net as of the dates presented (in millions):
 December 31, 2025
 CostAccumulated
Amortization
Net
Customer relationships$194 $(52)$142 
Software
140 (53)87 
Developed technology
59 (32)27 
Trade names and trademarks47 (30)17 
Purchased content
24 (18)
Total$464 $(185)$279 

 December 31, 2024
 CostAccumulated
Amortization
Net
Customer relationships$94 $(29)$65 
Software
101 (39)62 
Developed technology
102 (51)51 
Trade names and trademarks47 (25)22 
Purchased content22 (15)
Total$366 $(159)$207 
On February 6, 2025, we entered into a partnership with Redfin Corporation (“Redfin”), making Zillow the exclusive provider of multifamily (properties with 25 or more units) rental listings on Redfin and its sites, including Rent.com and ApartmentGuide.com (together, “Redfin Rental Network”). Pursuant to this rentals partnership, Zillow made a $100 million payment to Redfin in February 2025 that is included in customer relationships in the table above and is being amortized over the estimated useful life of nine years. Zillow also pays Redfin for leads generated through the Redfin Rental Network for an initial period of five years with two optional two-year extensions, subject to the terms of the underlying agreements.
We recorded amortization expense related to intangible assets of $89 million, $77 million and $53 million for the years ended December 31, 2025, 2024 and 2023, respectively.
Estimated future amortization expense for intangible assets, including amortization related to future commitments (see Note 13), as of December 31, 2025 is as follows (in millions):
2026$78 
202767 
202842 
202933 
2030
25 
Thereafter38 
Total future amortization expense$283 
We did not record any material impairment costs related to our intangible assets for the years ended December 31, 2025, 2024 or 2023.