A center director is closing the month when two figures do not agree: the attendance export shows one total, while the spreadsheet prepared for state reporting shows another. Finding the difference before submission is much easier than reconstructing it weeks later.
Quick answer: The CBAS Monthly Statistical Summary Report (MSSR) is a monthly report California Community-Based Adult Services centers submit to the California Department of Aging (CDA). It summarizes eligibility decisions, discharges, participants served, attendance days, and operating days. The previous month's report is due by the 10th through the Peach Provider Portal.
This guide explains the required fields, submission steps, and a practical attendance calculation for 2026.
What Is the CBAS Monthly Statistical Summary Report?
The MSSR gives CDA a monthly picture of CBAS participant activity. It is a statistical report, not a claim, invoice, or replacement for participant-level documentation. The figures should be traceable to current eligibility decisions, discharge information, daily attendance records, and approved emergency remote services (ERS), when applicable.
For the broader California program context, see Adult Day Genie's California CBAS software page. This guide addresses the state reporting process, rather than general CBAS software selection.
CBAS MSSR Due Date: When Must Centers Submit?
The CDA reporting requirements page states that the MSSR is due by the 10th of each month for the previous month's data and must be submitted through the Peach Provider Portal.
For example, September 2026 activity was due October 10, 2026. Do not assume a weekend or holiday changes the deadline without guidance from CDA. Build in time for checking numbers and resolving missing entries before submission.
Older documents describing email, fax, or mailing a spreadsheet predate the electronic process. Use CDA's current reporting and portal instructions.
CBAS MSSR Reporting Requirements: What Goes in the Report?
CDA's MSSR Help instructions (revised January 2025) describe six core reporting boxes:
| Field | What the center reports | Important distinction |
|---|---|---|
| 1. Individuals determined eligible | New Medi-Cal CBAS eligibility determinations during the month | Separate fee-for-service (FFS) and managed care; exclude routine reauthorizations |
| 2. Individuals determined ineligible | Medi-Cal CBAS ineligibility determinations during the month | Separate FFS and managed care |
| 3. Participants discharged | People formally discharged that month | Break out FFS, managed care, and private pay |
| 4. Participants served | Eligible people receiving in-center CBAS and/or qualifying ERS that month | Exclude people pending eligibility or initial multidisciplinary-team assessment |
| 5. Participant attendance days | Qualifying attendance days for participants counted as served | Separate payer categories; exclude initial assessment days |
| 6. Days of center operation | Days the center provided in-center services and/or qualifying ERS | Use CDA's rules for operating days and licensed schedule |
Do not confuse people with service days. One participant served for 12 eligible days counts as one person in the participants-served field but contributes 12 attendance days.
The report distinguishes Medi-Cal fee-for-service, Medi-Cal managed care, and private-pay participants where the field requires it. Private pay can include certain third-party payment arrangements as defined by CDA. Verify each participant's correct category before totaling records.
How to Submit CBAS MSSR Through Peach
CDA's Peach submission instructions describe this workflow:
- Step 1: Sign in to the Peach Provider Portal using your approved center account and current access instructions.
- Step 2: Choose MSSR, not the general file-upload area, from the portal options.
- Step 3: Select the center and reporting month. Select the appropriate shift when your center has an approved multi-shift arrangement.
- Step 4: Enter the report figures using the corresponding MSSR fields and CDA definitions.
- Step 5: Review the totals against your enrollment, eligibility, discharge, and attendance source records before submitting.
- Step 6: Submit through the portal and retain any available confirmation and internal review notes according to your center's procedures.
This answers how to submit CBAS MSSR without relying on outdated email-based instructions. If a portal screen changes, use the latest CDA portal materials rather than guessing at a field.
CBAS Participant Attendance Days: What Counts?
CDA defines an in-center participant attendance day as at least four hours of services at the center in accordance with the participant's Individual Plan of Care (IPC). Qualifying ERS days may also count under the relevant emergency, initiation, and IPC rules.
Do not include days spent only in the initial multidisciplinary-team (MDT) assessment. Nor should pending-eligibility participants be included as participants served while their status remains unresolved under CDA's instructions.
Check daily attendance against participant status, date, payer category, and actual services. An adult day care attendance sheet template can help establish a consistent source record, but the MSSR still requires its own reporting definitions.
If the center provides qualifying ERS, remember that CDA also requires a separate monthly ERS report with participant-level service dates. Do not treat the MSSR as a substitute for the ERS reporting requirement.
CBAS Average Daily Attendance Calculation: Worked Example
CDA's MSSR guidance specifies that average daily attendance is calculated automatically by dividing total qualifying in-center and ERS attendance days by the days of center operation. You can check the arithmetic before submission.
Assume a fictional center has the following figures for one month:
| Payer category | In-center days | Qualifying ERS days | Total attendance days |
|---|---|---|---|
| Medi-Cal FFS | 18 | 2 | 20 |
| Medi-Cal managed care | 240 | 10 | 250 |
| Private pay | 30 | 0 | 30 |
| Total | 288 | 12 | 300 |
If the center had 20 eligible days of operation, its calculated average is 300 / 20 = 15 participant attendance days per operating day.
These figures are illustrative, not a sample accepted claim or a real center's data. Record ERS only where authorized and supported; do not count one participant twice for the same service day. The participant-served count must be established separately from the 300 total attendance days.
Common MSSR Errors to Catch Before Submission
- Counting reauthorizations as new eligibility decisions. The eligibility field is not a count of every continuing participant.
- Including pending participants as served. Confirm their status under CDA's definitions.
- Including initial MDT assessment days. These are excluded from the participant-attendance-days field.
- Mixing payer categories. Reconcile FFS, managed care, and private pay where separate columns are required.
- Ignoring eligible ERS dates or operating days. Cross-check applicable ERS documentation and the separate monthly report.
- Confusing attendance days with unique participants. Compare each figure with the correct underlying record.
Month-End MSSR Preparation Checklist
Before entering data in Peach, confirm that your team has:
- Selected the correct reporting month, center, and shift, if applicable.
- Checked new eligibility decisions, ineligibility decisions, and formal discharges.
- Verified unique participants served by the relevant payer category.
- Reconciled eligible attendance days and qualifying ERS dates with original records.
- Confirmed days of center operation and checked the resulting average.
- Assigned a reviewer, resolved discrepancies, and kept appropriate supporting records.
Keep this checklist as an internal preparation aid; CDA's official instructions control the report itself.
How Adult Day Genie Supports Monthly Record Preparation
Monthly reporting is harder when attendance is in a binder, authorizations live in a spreadsheet, and corrections are recorded in email. Adult Day Genie's daily operations software connects participant information, attendance, documentation, and date-range reports with exportable records and correction history.
This can help staff locate and check the underlying figures before entering them into Peach. Adult Day Genie is not presented as generating or electronically submitting the MSSR automatically, and software does not replace CDA's reporting rules or a center's review responsibilities.
Frequently Asked Questions
What is the CBAS MSSR used for?
It gives the California Department of Aging a monthly statistical summary of CBAS eligibility activity, discharges, participants served, attendance days, and operating days.
What is the CBAS MSSR due date?
The previous month's report is due by the 10th of each month through the Peach Provider Portal, according to CDA's published reporting requirements.
Do initial MDT assessment days count as attendance days?
No. CDA's MSSR Help instructions specifically exclude days when a participant is initially assessed by the center's multidisciplinary team.
Does the portal calculate average daily attendance?
Yes. CDA defines the result as total qualifying in-center and ERS attendance days divided by center operating days, and states the average is calculated automatically.
Can adult day care software submit the MSSR automatically?
Do not assume so. Adult Day Genie supports attendance, participant records, reporting, and exports; it has not been verified as an automated MSSR filing integration. Providers submit the official report through Peach.
Make Monthly Data Easier to Verify
The CBAS Monthly Statistical Summary Report should be prepared from reliable participant, eligibility, and daily service records, not reconstructed just before the deadline. A clean month-end review helps staff explain their figures and correct issues before filing.
Want to see how connected attendance records and reports work? Book a 15-minute Adult Day Genie walkthrough and bring one real reporting scenario from your center.
Editorial note: Based on CDA reporting requirements and MSSR Help revised January 2025, checked October 12, 2026. This educational guide does not replace CDA instructions, program rules, or your center's compliance review.