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Extended Service Terms (EST): What CSP Resellers Need to Know in 2026
The Microsoft Cloud Solution Provider (CSP) program is entering one of its most significant operational shifts in years. Beginning in 2026, Microsoft is retiring the longstanding post subscription grace period and replacing it with Extended Service Terms (EST) — a paid extension mechanism that changes how partners manage renewals, cancellations, billing, and customer expectations.
For resellers, understanding this transition isn’t optional; it’s essential for protecting margins, avoiding unexpected customer disruptions, and maintaining smooth operational processes. In this article, we break down what EST is, why Microsoft is introducing it, and what it means for CSP partners and resellers.
What Are Extended Service Terms (EST)?
Extended Service Terms (EST) are a paid, month–to–month extension period that begins when a CSP subscription reaches the end of its term, and the customer has not renewed or cancelled. Before EST, subscriptions without auto renew enabled would fall into a short, free grace period, giving customers temporary access without billing.
That grace period is being eliminated.
EST now becomes the new default behaviour for expired CSP subscriptions.
Under EST:
- Service continues uninterrupted.
- Billing becomes monthly, regardless of the original term.
- The cost is the standard monthly rate + 3% uplift (or 23% if no monthly SKU exists).
Resellers and customers now have three end of term options:
- Renew the subscription
- Cancel at end of term (service stops immediately)
- Move to EST while deciding their next steps
Why Microsoft Is Introducing EST
Microsoft say they are making this change to:
- Align CSP subscription behaviour with modern SaaS standards.
- Reduce what they are calling “accidental free usage” caused by the old grace period model.
- Standardize renewal and cancellation rules globally across CSP, MCAE, and online channels.
- Improve billing predictability and compliance.
In short, Microsoft wants to eliminate ambiguity at the end of a subscription term and ensure customers who continue using services contribute to the cost of delivery.
When Does EST Take Effect?
Microsoft is rolling EST out in stages:
- Nov 3, 2025: EST available for testing in CSP sandbox – MWH are actively using this and have our self-service portal ready to be updated with new functionality when Microsoft go live with EST.
- Feb 16, 2026: EST enabled in production environments, We can already see it in Partner centre and can set parameters as needed.
- May 4, 2026: Free grace period fully retired for CSP subscriptions, and ability to set new renewal parameters in your MicroWarehouse Self Service Portal.
For all CSP subscriptions expiring on or after these dates, the free grace period no longer applies — EST becomes the only paid continuation option.
What EST Means for CSP Resellers
This shift impacts all resellers. Here’s what to expect — and how to prepare.
No More Free Service After Expiration
The old “safety net” is gone.
If a customer fails to renew or cancel, the subscription will move into a paid monthly EST, generating unexpected charges if unmanaged.
Impact on resellers:
- You must proactively manage customer renewals. Remember the MWH CSP Portal is designed to make this easier for you. If you need help, contact your account manager or the operations team and they can help.
- Companies with poor renewal hygiene risk billing disputes. Use the reporting tools we have given you, make sure you have systems in place where your sales teams can access the information.
Expect Higher Operational Accuracy Requirements
Because EST bills for every day used, resellers must:
- Ensure renewal dates are tracked accurately.
- If you have end customers using our portal to self-serve, make sure they know about this in advance.
- Ensure Auto renew settings align with customer intent.
New Pricing Considerations for Customers
Since EST pricing includes a 3% surcharge, customers who enter it inadvertently may see higher costs than expected.
CSP Systems and Processes Need Updating
Resellers will need to adjust:
- Billing systems
- PSA/ERP integrations
- Customer notifications
- Service workflows
The new “cancel at end of term” option will be introduced into our CSP portal to prevent unwanted EST transitions. We can also work with you on updating your PSA integrations if you are using MWH Integr8.
How Resellers Should Prepare
To minimize friction, CSP partners should take these steps:
- Update customer communication templates: Explain EST clearly in renewal notices.
- Use your MWH portal to implement automated renewal tracking: Prevent unintentional entry into EST.
- Train your sales and support teams: Ensure everyone understands EST billing rules and how to guide customers.
- Audit autorenew settings– Our portal makes this really easy renew settings: The MWh portal will be updated with new functionality in advance of this change from Microsoft. Make sure each subscription is set according to customer intent.
- Review your margin strategy: Account for the 3% uplift and how it affects your pricing and costs.
Doing nothing is not really an option…
If your subscription has auto renew set to OFF, and you take no action:
Your subscription will automatically move into a paid Extended Service Term (EST)
- Microsoft will continue your service,
- Automatically bill you monthly,
- At the standard monthly rate + a 3% surcharge
(or +23% if no monthly SKU exists).
This is the default Microsoft behaviour going forward.
If AutoRenew is ON and you do nothing:
Your subscription will renew normally, just as before.
EST only affects cases where AutoRenew is off or you choose not to renew.
If you do nothing and want the subscription to actually end:
It will not end on its own anymore.
Unless you explicitly select Cancel at end of term, Microsoft will keep the service active and start billing EST charges.
What won’t happen anymore
Before EST, when a subscription expired and autorenew was off, customers got a free grace period of continued access.
That free period is gone from May 4th.
| If you take no action | What happens after May 4, 2026 |
|---|---|
| AutoRenew ON | Subscription renews normally. |
| AutoRenew OFF | Microsoft automatically moves you to paid EST, billed monthly at +3%. |
| You don’t explicitly cancel | You continue being billed under EST — service does not stop automatically. |
Conclusion
Extended Service Terms represent a major shift for CSP resellers. While they eliminate the ambiguity of the traditional grace period, they also require more disciplined subscription management and clearer communication with customers. For partners prepared to adapt, EST can reduce risk, improve predictability, and offer customers flexible continuity without service disruption.
But for partners who fail to update their internal processes, EST may introduce unexpected costs and difficult conversations.
By preparing now — updating workflows, educating teams, and engaging customers — CSP resellers can navigate the transition smoothly and leverage EST as a strategic advantage rather than a burden.
Reach out to your MWH account manager if you want to chat about any of the above.