# Tableflow Billing Tableflow enables you to expose data from Apache Kafka® as an Apache Iceberg™ or Delta Lake table. Tableflow is billed on two dimensions: per topic-hour and Gigabytes (GB)-processed. Tableflow billing is enabled at a per-topic level, which includes Iceberg and Delta Lake table formats. If you enable a topic for both formats, you’re only charged once for the overall topic, not per format. GB processed has two components: data processed, which applies to all tables, and index data processed, which applies only to upsert tables. For current prices, see the [Confluent Cloud pricing page](https://www.confluent.io/pricing/). ## Topic-hours The per topic-hour charge is assessed for each topic and each hour that you have Tableflow enabled. This charge covers the active management of services for dataflow, monitoring, and securing connections to external query and catalog systems. ## GB-processed GB-processed is measured as the amount of data that is read by Tableflow. This includes the data processed to perform the initial materialization of your Kafka data, and the data processed to perform compaction. When using the [upsert](../../topics/tableflow/concepts/write-modes.md#cloud-tableflow-write-modes-upsert) write mode, you’re also charged for index-related processing, which recurs and scales with the index size of the table. ## Confluent Managed Storage Optionally, you may use Confluent Managed Storage to store your Tableflow managed tables. Confluent Managed Storage is billed on several factors including the amount of data stored, the number of requests made, and data transfer costs. ### Storage Storage costs are charged based on the amount of data stored in Confluent Managed Storage. ### Data transfer Data transfer from Confluent Managed Storage to destinations that are in the same region as your source Kafka cluster is free. Data transfer from Confluent Managed Storage to all other destinations might be charged. ### Requests Read (GET) requests to Confluent Managed Storage are charged per-request. Write (POST, PUT) requests to Confluent Managed Storage are charged per-request. ## Kafka storage Kafka storage is billed on the amount of data stored in Kafka topics. When you enable Tableflow, you aren’t charged for Kafka storage replication, which can give you up to ~67% effective savings. ## Related content - [FAQ for Confluent Cloud Billing](../billing-faq.md#billing-faq) - [Supported Cloud Regions](../../topics/tableflow/overview.md#tableflow-cloud-regions) - [Monitor Tableflow](../../topics/tableflow/operate/monitor-tableflow.md#tableflow-monitor)