For your budget planning, rates for the 2027 calendar subscription year are posted below and can be downloaded in Excel. Subscriptions include access to the full contents of the 18th and 17th editions.
Download Excel Spreadsheet of CMOS Online 2027 Rates
The Chicago Manual of Style Online / The CSE Manual Online Combination Package Offer
Institutional and corporate subscribers to CMOS Online can add The CSE Manual Online at a 50% discount for the first year.
Download CMOS + CSE Online Combination Package 2027 Rates
Institutions and Corporations: 2026 rates remain in effect until December 31, 2026. Fall 2026 renewals for the 2027 calendar year will be billed at the 2027 rate. 2027 rates are effective January 1, 2027.
Individuals and Small-Groups: New rates are effective October 1, 2026.