The short answer
COSTAR GROUP INC is a commercial real estate data subscription or rental advertising charge from CoStar Group, the parent corporate entity behind Apartments.com, LoopNet, Homes.com, BizBuySell, and Land.com.
Inside CoStar Group's property network
CoStar Group, Inc. (NASDAQ: CSGP) is the dominant commercial real estate data and marketplace platform in North America. While property managers and landlords may believe they signed up for an advertising package on Apartments.com or LoopNet, credit card statements and ACH bank feeds clear under the legal corporate parent descriptor COSTAR GROUP INC.
Landlords listing rental properties on the Apartments.com network frequently purchase premium listing placement tiers, tenant background screening credits, or automated rental syndication packages. These advertising packages bill on monthly recurring cycles that continue until the listing is actively deactivated.
On the commercial enterprise side, commercial brokers, appraisers, and institutional investors pay substantial monthly licensing fees (often several hundred to thousands of dollars per month) for professional access to the CoStar Suite real estate analytics platform.
Reviewing your real estate accounts
- Log into your Apartments.com or LoopNet landlord portal Navigate to the Billing & Invoices tab to inspect active ad tier packages, unit counts, and auto-renew dates.
- Deactivate filled rental unit listings Ensure completed or leased units are marked as 'Off Market' to prevent promotional ad packages from recurring.
- Contact CoStar Client Services for account cancellations Enterprise data contracts require contacting your dedicated CoStar account representative or calling 1-888-226-7404.
Frequently asked questions
Why does my credit card say CoStar when I only used Apartments.com?
Apartments.com is wholly owned by CoStar Group, Inc. All billing transactions, listing packages, and payment processing are managed by CoStar corporate accounting.
How do I cancel recurring listing fees on Apartments.com?
Log into your rental manager dashboard at apartments.com, select Properties, click on your listing package, and choose Cancel Subscription before the next billing cycle.
Independent reference — not affiliated with CoStar Group, Inc.. Billing names and policies change; verify with the merchant or your bank before acting.
Verified sources
Every claim on this page is checked against official sources — open them to confirm before you call your bank.
- CoStar Group - Real Estate Brand Portfolio Overview https://www.costargroup.com/about
- Apartments.com Rental Manager Terms and Conditions https://www.apartments.com/terms/
Reviewed Sep 26, 2026 · high · About UnknownCharges