{"rid":"storage/sharepoint-online-site-collections","card":{"rid":"storage/sharepoint-online-site-collections","eid":"microsoft","topic":"storage","slug":"sharepoint-online-site-collections","provider":"SharePoint Online site collections (25 TB per site ceiling)","url":"https://learn.microsoft.com/en-us/sharepoint/sharepoint-limits","domain":"microsoft.com","category":"cloud-drive","tier":null,"verdict":"qualifies-with-caveat","vorder":1,"grp":"usable","confidence":"reported","binding":"none","identity_kind":"email","identity_basis":"defaulted","needs_card":null,"needs_phone":null,"needs_id":null,"needs_institution":null,"country":null,"crypto":null,"interfaces":"rest,graph,rclone","egress_metered":0,"per_object_bytes":null,"retention_days":null,"verified_at":"2026-10-21T00:00:00.000Z","verified_basis":"inherited","checked_on":"2026-10-21","stale_on":"2026-11-04","n_evidence":3,"usd_month":null,"usd_per_tb_month":null,"summary":"25 TB maximum storage per site collection; 2,000,000 site collections per organization; 500,000 site collections per education tenant; file upload limit 250 GB.","duplicate_of":null,"n_unknown":7},"record":{"topic":"storage","slug":"sharepoint-online-site-collections","provider":"SharePoint Online site collections (25 TB per site ceiling)","url":"https://learn.microsoft.com/en-us/sharepoint/sharepoint-limits","category":"cloud-drive","free_tier":{"stated":"25 TB maximum storage per site collection; 2,000,000 site collections per organization; 500,000 site collections per education tenant; file upload limit 250 GB.","unit":"objects","metered_on":"stored-bytes","source_url":"https://learn.microsoft.com/en-us/sharepoint/sharepoint-limits","read_on":"2026-10-21","notes":null},"per_object_cap":{"stated":"not stated","source_url":"https://learn.microsoft.com/en-us/sharepoint/sharepoint-limits","notes":"not stated"},"retention":{"stated":"not stated","source_url":"https://learn.microsoft.com/en-us/sharepoint/sharepoint-limits","notes":"not stated"},"egress":{"terms":"Unmetered (same M365 subscription model - no per-GB egress meter).","metered":false},"interface":["rest","graph","rclone"],"interface_detail":"rest","tooling":"Microsoft Graph (Sites.ReadWrite.All, Files.ReadWrite.All, app-only client-credentials flow); rclone 'onedrive' remote with drive_type=documentLibrary and a site/drive_id, or the SharePoint v2.0 endpoint override via tenant_url","chaining":"This is the structural ceiling inside the A1 tenant: the pool is 100 TB, a single library can address 25 TB, and there are up to 2M sites. In a paid E3/E5 tenant (1 TB + 10 GB/license) the same 25 TB-per-site ceiling applies, so a 100-license tenant has 2 TB pooled but 50 sites worth of address space. Per-site ceilings only bind once you have the pool to back them.","limits":[],"limits_note":"Bounded by the tenant pool, not by the site: a 100 TB-pool tenant holds at most 4 sites at 25 TB each. Versioning (50,000 major versions) silently multiplies storage on overwrite. Team sites force versioning on; standalone Communication sites allow 'No versioning'.","identity_cost":{"kind":"email","detail":null,"country":null},"reliability_note":"Version bloat is the real data-loss-adjacent hazard: re-uploading a 20 GB file to a Team site library can consume hundreds of GB of pool in hidden versions.","confidence":"reported","confidence_note":"One page read moves it to documented.","evidence":[{"url":"https://learn.microsoft.com/en-us/sharepoint/sharepoint-limits","date":"2026-10-21","proved":"'Max storage per site (site collection) 25 TB'; 'Sites (site collection) per organization 2 million'; '250 GB - File upload limit'; 'Versions 50,000 major versions and 511 minor versions'"},{"url":"https://learn.microsoft.com/en-us/office365/servicedescriptions/office-365-platform-service-description/office-365-education","date":"2026-10-21","proved":"'Storage for site collections: Up to 25 TB per site collection or group'; 'Site collections per tenant: 500,000'"},{"url":"https://michifumi.de/blog/2026-09-21-bypass-e5-onedrive-10gb-limit-mount-sharepoint/","date":"2026-10-21","proved":"documents team-site vs communication-site versioning bloat and dual-mount rclone setup against a 300 GB E5 tenant"}],"verdict":"qualifies-with-caveat","verified_at":"2026-10-21T00:00:00.000Z","notes":"25 TB maximum storage per site collection; 2,000,000 site collections per organization; 500,000 site collections per education tenant; file upload limit 250 GB.","extras":{},"binding":"none","binding_note":"no constraint in the record binds at this scale; the record carries no limit of a kind the vocabulary names"},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":25,"unit":"TB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[["$.free_tier.notes","process"],["$.identity_cost.detail","defaulted"],["$.identity_cost.kind","identity-defaulted"],["$.per_object_cap.notes","not-extracted"],["$.per_object_cap.stated","not-extracted"],["$.retention.notes","not-extracted"],["$.retention.stated","not-extracted"]],"history":[],"drift":[]}