Google Cloud Datastream Pricing in 2026

Every plan Google Cloud Datastream publishes, with the page and date we read it from. Prices we could not find on Google Cloud Datastream's own site are marked "Not published", never guessed.

PlanPriceBillingLimitsSource
Datastream Free TierFree100 GiB of CDC data per month per billing accountAlloyDB and Spanner sources to BigQuery · 100 GiB shared across eligible streams per billing accountcloud.google.com
Datastream backfill$0.40 per monthPer gibibyte processed, per month, per accountFirst 500 GiB each month free · listed rate applies above 500 GiB · Iowa (us-central1) pricingcloud.google.com
Datastream CDC$2 per monthPer gibibyte processed, per month, per account; tiered pricing0–2,500 GiB at listed rate · higher tiers have lower per-GiB rates · pricing beyond 10 TB: contact salescloud.google.com

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