> For the complete documentation index, see [llms.txt](https://guides.gresb.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guides.gresb.com/fundamentals/getting-started/timeline.md).

# Timeline

Fundamentals operates year-round. Participants may resubmit their assessment as needed, and an updated Fundamentals Report will be generated once GRESB completes validation and scoring of the submitted response.

### GRESB Dates

Key dates for the **2026** assessment cycle:

<table><thead><tr><th width="222.75146484375"><select><option value="t50IQucFE2Ck" label="Year-Round" color="blue"></option><option value="FN8R9WOrPj6K" label="September" color="blue"></option><option value="SlP9msLIDXbQ" label="January" color="blue"></option><option value="ucwVRY7jzplu" label="May" color="blue"></option><option value="tbPI1TtQObKY" label="August" color="blue"></option><option value="4HNrl1uTT0tD" label="Year-Round (starting in August)" color="blue"></option><option value="9P1aqjOW3ntX" label="July" color="blue"></option><option value="7ndXibfeYG9w" label="October" color="blue"></option><option value="NEH7tWkDZ7dA" label="November" color="blue"></option><option value="cGeMmYbbk7t5" label="Year-Round (starting in July)" color="blue"></option><option value="sGJ8nHwyDKHY" label="Year-Round*" color="blue"></option></select></th><th width="166.5740966796875"></th><th></th></tr></thead><tbody><tr><td><span data-option="ucwVRY7jzplu">May</span></td><td><strong>Assessment Development</strong></td><td>Standards and GRESB Guides are released.</td></tr><tr><td><span data-option="9P1aqjOW3ntX">July</span></td><td><strong>Assessment Opening</strong></td><td><strong>July 1:</strong> The portal opens for assessment input.</td></tr><tr><td><span data-option="tbPI1TtQObKY">August</span></td><td><strong>Fundamentals Report</strong></td><td><strong>August 1:</strong> Fundamentals Reports are made available in the <a href="https://portal.gresb.com/log_in">GRESB Portal</a>.</td></tr><tr><td><span data-option="7ndXibfeYG9w">October</span></td><td><strong>Fundamentals Report</strong></td><td><strong>October 1:</strong> Participants can choose to share their Fundamentals Report with investors in the GRESB Portal.</td></tr><tr><td><span data-option="t50IQucFE2Ck">Year-Round</span></td><td><strong>Onboarding Service</strong></td><td><p>Starting in <strong>July</strong>, new participants may request an onboarding call.</p><p><br>Please contact your Account Manager to schedule it.</p></td></tr><tr><td><span data-option="sGJ8nHwyDKHY">Year-Round*</span></td><td><strong>Resubmission</strong></td><td><strong>Starting mid-August:</strong> Participants may reopen, edit, and resubmit their assessment as needed.</td></tr></tbody></table>

{% hint style="info" %}
**Year-Round\*: In 2026, resubmission becomes available starting in August.**

From this date onwards, participants may resubmit their assessment as needed and will receive an updated Fundamentals Report within several weeks of each submission.

Resubmission may be appropriate if the entity did not pass and has since strengthened its management practices, or if it has made material updates to its management practices and would like its submission to reflect those changes.
{% endhint %}

Key dates for **future** reporting cycles:

The assessment will be available year-round with on-demand reports. This means participants will be able to submit and re-submit as from the start of the reporting period, with a Fundamentals Report being made available within several weeks from the submission.


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