tencent cloud


Free Tier

Last updated: 2022-09-19 16:04:29


    COS offers a limited free tier resource pack to all new users (i.e., users activating COS for the first time) to deduct the fees incurred by data stored in the STANDARD storage class, as detailed below:

    Object Free Tier Validity
    New user 50 GB STANDARD storage usage 6 months (180 days)

    The storage capacity is calculated in binary, for example, 1 TB = 1024 GB.

    Applicable Regions

    The free tier is only applicable to public cloud regions. For more information on regions, see Regions and Access Endpoints.

    The free tier offered by COS can be used to deduct only STANDARD storage usage as detailed below. For more information, see Traffic Fees.


    • The free tier cannot be used to deduct billable items other than STANDARD storage usage, such as STANDARD_IA storage usage, ARCHIVE storage usage, requests, and traffic. For more information, see Billable Items.
    • If your service is suspended due to violations or overdue payment, you will not be eligible for the free tier even within its validity period before the service is resumed.
    Fees Billable Item Available Free Tier
    Storage usage fees STANDARD storage usage Yes.
    New users are entitled to a free tier of 50 GB STANDARD storage usage for 6 months (180 days).
    STANDARD_IA storage usage No.
    The free tier cannot be used to deduct billable items other than STANDARD storage usage.
    INTELLIGENT TIERING storage usage
    ARCHIVE storage usage
    DEEP ARCHIVE storage usage
    Request fees Requests
    Data retrieval fees Data retrieval
    Traffic fees Public network downstream traffic, CDN origin-pull traffic, cross-region replication traffic, and global acceleration traffic
    Management feature fees Inventory, extraction, batch operation, and object tagging



    Assume that user A activated the COS service on March 10, 2019, uploaded 50 GB of files to the STANDARD storage class in Beijing region on March 16 generating 100 requests, and downloaded 10 GB of data over the public network on March 20 generating 100 requests. Apart from these operations, user A did not perform any other operations before the end of September.

    Time Description Unit Price Volume Fees (USD)
    March 10, 2019 User A received a monthly free tier of 50 GB STANDARD storage usage valid for 6 months (180 days). - - Free of charge
    March 17–September 5, 2019 Starting from March 17, 2019, the STANDARD storage usage fees were settled daily. As user A had a free tier of 50 GB STANDARD storage usage valid between March 10 and September 5, 2019 (180 days), there were no charges. - - Free of charge
    March 17, 2019 The fees for 100 STANDARD requests were settled. 0.024 USD/10,000 requests 100 requests 0.024 * 100 / 10000 = 0.00024 USD
    March 21, 2019 The fees for 10 GB public network downstream traffic were settled. 0.1 USD/GB 10 GB 0.1 * 10 = 1 USD
    March 21, 2019 The fees for 100 STANDARD requests were settled. 0.01 USD/10,000 requests 100 requests 0.01 * 100 / 10000 = 0.0001 USD
    September 6, 2019 User A's free tier expired on September 6, 2019, so the storage usage from September 6 to September 30, 2019 (25 days) became pay-as-you-go. Fees for 50 GB STANDARD storage usage were settled daily. 0.024 USD/GB/month 50 GB 0.024 / 30 * 50 * 25 = 1 USD

    Claim and Query

    After you sign up for a Tencent Cloud account as instructed in Signing Up and log in to the COS console to activate the COS service, the system will automatically issue the free tier to your account.

    Validity Period

    The free tier is valid for 6 months (180 days) after the activation of your COS service.

    For example, if you activated COS at 17:13:14 on March 10, 2019, and assume that 6 months is equal to 180 days, then the free tier would cover your STANDARD storage usage between March 10 and September 5, 2019.

    Billing Sequence

    During the free tier term, you may still be charged for other fees, such as request fees and traffic fees. Therefore, the billing sequence varies by scenario.

    • By default, the system adopts the pay-as-you-go billing mode for bill settlement.
    • If you are eligible for the free tier of STANDARD storage usage, then your bills will be settled in the order of free tier > pay-as-you-go billing, that is, you will be charged in a pay-as-you-go manner for the usage in excess of the free tier.


    If you have any questions about the free tier or your bills, see Billing or contact us.

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