Revenue and Contract Balances
We recognize revenue when or as we satisfy our performance obligations by transferring control of the promised products or services to our customers in an amount that reflects the consideration to which we expect to be entitled in exchange for those products or services. See Note 2 to our consolidated financial statements for additional information on our revenue from contracts with customers and contract balances.
Contract Balances
Contract assets totaled $230 million and $157 million as of December 31, 2025 and 2024, respectively. Contract assets included in prepaid expenses and other current assets in our consolidated balance sheets totaled $212 million and $145 million as of December 31, 2025 and 2024, respectively. As of December 31, 2025, the average remaining recognition period for our contract asset related to our Zillow Preferred offering was five months.
For the year ended December 31, 2025, the opening balance of deferred revenue was $62 million, of which $60 million was recognized as revenue during the period. For the year ended December 31, 2024, the opening balance of deferred revenue was $52 million, of which $51 million was recognized as revenue during the period.

Historical Timeline

Fiscal YearFiled
2025Feb 11, 2026Showing above
2024Feb 11, 2025
2023Feb 15, 2024
2022Feb 15, 2023
2021Feb 10, 2022
2020Feb 12, 2021
2019Feb 19, 2020
2018Feb 21, 2019
2017Feb 15, 2018
2016Feb 7, 2017
2015Feb 12, 2016

About Revenue Disclosures

Revenue disclosures under ASC 606 explain how a company identifies performance obligations, allocates transaction prices, and determines when revenue is recognized. This section is essential for understanding whether reported revenue reflects genuine economic activity or aggressive accounting choices. Analysts examine the mix of point-in-time versus over-time recognition, which directly affects revenue timing and comparability.

Key signals: rising contract liabilities (deferred revenue) suggest strong future revenue visibility, while declining contract assets may indicate slowing project milestones. Watch for variable consideration estimates — rebates, returns, and performance bonuses that require management judgment. Significant changes in disaggregated revenue by geography or product line can reveal shifting business mix before it appears in headline numbers. Compare revenue growth against contract liability growth to assess sustainability, and scrutinize any changes in the timing of recognition that coincide with earnings pressure.