SQL Server 2016 ESU Cost: $0.19 or $0.74 per Core-Hour, and No Microsoft Page We Could Find Shows the 525% Escalator

SQL Server 2016 ESU cost as of November 5, 2026: Microsoft’s price list charges $0.19 per core-hour for Standard and $0.74 for Enterprise, with a 4-core minimum per VM. That is $554.80 or $2,160.80 a month at four cores, the same list price on Azure VMs, on premises and in other clouds, with no free Azure tier for 2016.

Not a price quote. These are USD list prices from Microsoft’s public price list on November 5, 2026, before any agreement discount, tax or reseller margin. Software Assurance renewals are left out of every row because Microsoft’s pricing sheet does not list them and you carry them on either path.

The price list, as pulled on Nov 5, 2026

Microsoft bills ESU by the hour through Azure, and it publishes that rate. The Retail Prices API and the Arc pricing page agree to the cent: $1,080.40 per 2 cores a month is exactly $0.74 x 2 x 730, and $277.40 is $0.19 x 2 x 730. The page shows the same value in all 65 regions it lists. Nothing on the meters changed between our October 15 and November 5 pulls.

Formulas. ESU = billed cores x hourly rate x 730 x months. No Software Assurance adds billed cores x PAYG rate x 730 x months. Perpetual = licensed cores x per-core price. Subscription = licensed cores x annual price x whole years. Bill-back = billed cores x hourly rate x 24 x days since July 15, 2026. Actual metered hours across the three terms total 26,376, against 26,280 at 730 a month, so a full run bills 0.4% more than the formula.

Worked examples at 4, 16 and 64 cores

Thirty-six months is the whole ESU window at the 730-hour convention. ESU scales in a straight line with cores until the Standard cap, so one 16-core Enterprise VM costs $311,155 over the window, 2.6 times the $120,984 that Microsoft estimates for new perpetual licenses on the same cores.

*Standard ESU bills at most 24 cores per machine, so the 64-core row shows 24 billed ESU cores and 32 PAYG cores on SQL Server 2025, while perpetual and subscription licenses count all 64. SQL Server 2016 Standard uses 24 cores at most, so this is a machine to resize, not a real purchase. Upgrade columns exclude labor, testing and Software Assurance renewals.

36 months at 730 hours a month. Microsoft list prices; perpetual prices are Microsoft’s estimated retail. Same scale for both editions.

When ESU costs more than upgrading

The break-even does not depend on core count, because both sides scale per core. Without Software Assurance, ESU requires the pay-as-you-go license too, so Enterprise runs $1.115 per core-hour and passes a new perpetual core license at month 9.3. Standard, at $0.29, passes at month 9.3. With the ESU meter alone, the crossing moves to month 14.0 for Enterprise and 14.2 for Standard.

Enterprise, cumulative cost per core. Standard has the same shape: its crossings land within 0.3 months of these. Excludes labor.

The Enterprise ESU meter alone is 1.97 times the pay-as-you-go rate for a supported SQL Server, and 2.39 times the annual subscription. Standard runs 1.9 and 2.35 times. Microsoft prints the same license prices for SQL Server 2022 and 2025, so the choice between them comes down to dates and capacity: 2022 mainstream support ends Jan 11, 2028 and extended support Jan 11, 2033, while 2025 runs to Jan 6, 2031 and Jan 6, 2036. Standard is capped at 24 cores on 2022 and 32 on 2025.

Is ESU really 75%, 150% and 300% of a license?

That schedule is the most repeated number on this query, and we could not trace it to Microsoft. Measured against Microsoft’s current perpetual price, the published meter works out to 85.7% of a license per year for Enterprise and 84.4% for Standard. Over three years that is 257% and 253%, not 525%.

Share of one perpetual core license ($15,123 or $3,945 per 2 cores), per ESU year at 8,760 hours. Grey rows are secondary sources, not Microsoft figures.

The one citation trail we could follow ends at an estimate: The Register’s figure links to Atlas, and Atlas calls its figures estimates. Then we looked for a Microsoft source. Our code searched 115 past revisions of Microsoft’s ESU FAQ, ESU overview and Arc ESU articles in the public MicrosoftDocs git history, dated Jul 12, 2023 to Oct 18, 2026. The only ESU percentage in them is an hourly formula, “(core count) x (100% of Year 2 ESU license price) / 730”, later Year 3, which last appeared in the May 21, 2026 revisions and is gone now. It also searched 7 Wayback Machine snapshots of Microsoft’s ESU plans page from February 2024 to August 2026 and found no percentage; another 7 snapshots returned rate limits and we did not retry them. Microsoft’s lifecycle FAQ does print a schedule, 100% of the full license price each year, but only for Windows Server 2012 and 2012 R2.

The meters point the same way. SQL Server 2014’s ESU meter has an effective date of May 1, 2024, before its Year 1 began on Jul 10, 2024, and it still bills the same $0.74 in Year 3, which started Jul 15, 2026. A step-up at Year 2 or Year 3 would normally show a later effective date. SQL Server 2012’s meter has been $0.67 and $0.17 since Aug 1, 2023, spanning most of its Year 2 and all of Year 3.

Two limits on that. The API shows current prices only, so Microsoft could still set a new 2016 rate for Year 2 on Jul 14, 2027; we will check it then. And Microsoft publishes no Volume Licensing price at all: its plans page says to “reach out to your Microsoft representative” for annual billing, so a private price sheet could differ, even though the March 27 notice promises the same list price across channels. If a reseller quotes you 75, 150 and 300, ask for it in writing and compare it with Arc. At those percentages, 16 Enterprise cores would cost $635,166 against $311,155 on the meter.

ESU years, end dates and the rule for buying a later year

Microsoft’s lifecycle page gives three terms of unequal length: 364, 371 and 364 days. Support ended Jul 14, 2026. The dates disagree slightly across Microsoft’s own pages on when billing begins: the FAQ says midnight UTC on July 15, 2026, the Arc pricing page says July 15, and the Arc ESU article says midnight on July 14. We use July 15, matching the lifecycle page.

• Later years need the earlier ones. Microsoft’s Arc article says anyone starting after end of support “must purchase the Volume Licensing offer or ESU subscription to cover any previous years”. You cannot buy Year 3 alone.
• Bill-back has no surcharge on the meter. The “ESU 2016 back billing” meters carry the same $0.19 and $0.74. Waiting saves nothing, and it moves the charge into one invoice: on Nov 5, 2026 that is 2,712 hours, or $2,061 for 4 Standard cores and $32,110 for 16 Enterprise cores.
• Year 2 and later starts take a ticket. Arc bills from the start of the current ESU year. To pay prior years through Azure too, Microsoft says to contact your account team or open a support request; if you hold Volume Licensing coverage for those years, the transition is automatic.
• Stopping is free; restarting is not. You can cancel at any time without penalty, and Arc charges stop when the server is upgraded or moved to Azure SQL. Reactivate within 30 days and you are billed back to the last active hour. After 30 days it is a new subscription with bill-back.
• Machine changes can double-bill. A changed VM ID makes Arc treat the server as new, with fresh bill-back. Moving to another Azure location terminates the subscription. An agent offline past 45 days loses its certificate and must be re-onboarded.

What is free on Azure, and what is not

Azure was free for ESU through SQL Server 2014. For 2016 it is not. Microsoft’s March 27, 2026 notice applies one list price to ESU offerings released on or after April 1, 2026, and exempts Windows Server 2012, Windows 10 22H2 and SQL Server 2014. The thread at position 6 for this query, a Microsoft Q&A answer, still tells readers 2016 is free in Azure; Microsoft’s documentation has said otherwise since at least June 22, 2026.

Software Assurance and core minimums

ESU is not included in Software Assurance. Microsoft calls SA “a prerequisite for ESUs” and says the subscription “must be activated separately”. On premises you need SA under an Enterprise Agreement, Enterprise Subscription, Server and Cloud Enrollment or Education Solutions enrollment, though the SA can sit on a different enrollment. Without SA, the only route is Arc with the pay-as-you-go license type. A perpetual license without SA, or Server+CAL, cannot take ESU until it is switched to pay-as-you-go, and Microsoft says SA “cannot be acquired later” for a perpetual license.

Billing counts every core the operating system sees, with a floor of four per VM or physical server. Standard stops at 24. The third option, unlimited virtualization, bills the host’s physical cores on the Enterprise meter, with a 16-core minimum. It beats per-VM billing when the billed cores of Enterprise VMs exceed the host’s physical cores, or when Standard VMs exceed 3.9 times the physical cores, since one physical core costs that many Standard ones. It is not available for VMs on infrastructure from Microsoft’s “listed providers”, and every VM on those hosts must be connected to Arc.

The same maths for other ESU products

Only the rate changes: cores x rate x 730 x months. We list a product here only where Microsoft’s price list shows the meter.

Microsoft states its 8-core and 16-core Windows Server minimums for 2012 and 2012 R2 only. We did not find them restated for Windows Server 2016, so confirm before budgeting. Support dates for every version are in our Windows Server end of life report.

What changed, by date

What this means for MSPs

• Replace the percentage in client proposals. Quote cores x rate x months from the meter, name the Nov 5, 2026 price date, and mark any 75, 150, 300 figure as a reseller estimate until a reseller puts it in writing.
• Sort the estate by Software Assurance first. A client with active SA has a $0 upgrade license, so ESU is purely paying for time, at $555 a month for the smallest Standard VM. A client without SA pays $0.29 or $1.115 per core-hour and should compare against month 9.3 or 9.3.
• Budget bill-back now. Every 2016 server that will need ESU has been accruing since July 15. Pull the bill-back for each one before the client sees a one-line charge on the next invoice. Hosted clients qualify only if the server connects to Arc.
• Know what the money buys. SQL Server ESUs cover Critical-rated fixes only, with “no regular release cadence”. Our SQL Server end of life report found Microsoft listed 0 of 45 new SQL Server 2017 CVEs for 2016 in the first releases after support ended, so check the Security Update Guide before assuming any release applies.
• Use the free meters. Move dev and test to Developer edition or a dev/test subscription, and confirm passive replicas show the $0 disaster recovery meter. Compare ESU across the rest of the estate with every Microsoft end of support date in 2026.

Frequently asked questions

How much does SQL Server ESU cost?

For SQL Server 2016, Microsoft’s Azure price list charges $0.19 per core-hour for Standard and $0.74 for Enterprise on November 5, 2026. That is $554.80 or $2,160.80 a month at the 4-core minimum, and $19,973 or $77,789 over 36 months. Without Software Assurance, add $0.100 or $0.375 per core-hour for the pay-as-you-go license.

Is there an ESU for Server 2016?

Yes, for both products. SQL Server 2016 ESUs run from July 15, 2026 to July 17, 2029. Windows Server 2016 ESUs start when its extended support ends on January 12, 2027, and Microsoft lists them at $0.007132 per core-hour for Standard and $0.041067 for Datacenter, or $83.30 and $479.66 a month for 16 cores.

How much does Microsoft ESU cost?

It depends on the product. SQL Server 2014 and 2016 share the $0.19 and $0.74 per core-hour Arc rates, though 2014 is free on Azure VMs and 2016 is not. Windows Server 2016 is $0.007132 or $0.041067 per core-hour. Microsoft’s lifecycle FAQ prints one percentage schedule, 100% of the full license price in each of three years, and it applies to Windows Server 2012 and 2012 R2.

Is SQL Server 2016 end of life?

Yes. Extended support ended on July 14, 2026. Paid ESUs carry Critical-rated security fixes only until July 17, 2029, 985 days from November 5, 2026. Standard and Enterprise on the latest service pack qualify; Express, Web and Developer cannot subscribe.

Are SQL Server 2016 ESUs free on Azure?

No. Microsoft’s ESU article says migrating to SQL Server on Azure VMs “no longer provides free access to ESUs” for 2016, and it says the same for Azure VMware VMs. The price list carries Azure ESU 2016 meters at $0.19 and $0.74, the same as Arc. SQL Server 2014 stays free there. Azure SQL Managed Instance avoids ESUs because it is not version-bound, but you pay for that service instead.

Can I skip Year 1 and buy only a later ESU year?

No. Microsoft says a late starter must cover any previous years through Volume Licensing or an ESU subscription, and Arc bills back to the start of the term. The back-billing meters carry the same $0.19 and $0.74 rates. Enabling on Nov 5, 2026 means about $32,110 of bill-back for one 16-core Enterprise VM.

Methodology

References

1. Microsoft, Azure Retail Prices API. prices.azure.com/api/retail/prices Accessed November 2026.
2. Microsoft, Azure Arc pricing. azure.microsoft.com Accessed November 2026.
3. Microsoft, Pricing Consistency Update, March 27, 2026. microsoft.com Accessed November 2026.
4. Microsoft, Extended Security Updates: Frequently asked questions. learn.microsoft.com Accessed November 2026.
5. Microsoft, What are Extended Security Updates for SQL Server? learn.microsoft.com Accessed November 2026.
6. Microsoft, SQL Server Extended Security Updates enabled by Azure Arc. learn.microsoft.com Accessed November 2026.
7. Microsoft, Manage licensing and billing of SQL Server enabled by Azure Arc. learn.microsoft.com Accessed November 2026.
8. Microsoft, Extended security updates for SQL Server on Azure Virtual Machines. learn.microsoft.com Accessed November 2026.
9. Microsoft, SQL Server end of support options. learn.microsoft.com Accessed November 2026.
10. Microsoft Lifecycle, SQL Server 2016. learn.microsoft.com Accessed November 2026.
11. Microsoft Lifecycle, SQL Server 2014. learn.microsoft.com Accessed November 2026.
12. Microsoft Lifecycle, SQL Server 2012. learn.microsoft.com Accessed November 2026.
13. Microsoft Lifecycle, SQL Server 2022. learn.microsoft.com Accessed November 2026.
14. Microsoft Lifecycle, SQL Server 2025. learn.microsoft.com Accessed November 2026.
15. Microsoft, Lifecycle FAQ: Extended Security Updates. learn.microsoft.com Accessed November 2026.
16. Microsoft, Plan your Windows Server and SQL Server end of support. microsoft.com Accessed November 2026.
17. Microsoft, SQL Server 2025 pricing sheet. microsoft.com Accessed November 2026.
18. Microsoft, SQL Server 2022 pricing and licensing. microsoft.com Accessed November 2026.
19. Microsoft, SQL Server 2025 product page, Software Assurance terms. microsoft.com Accessed November 2026.
20. Microsoft, SQL Server 2025 licensing guidance. microsoft.com Accessed November 2026.
21. Microsoft, Compute capacity limits by edition of SQL Server. learn.microsoft.com Accessed November 2026.
22. MicrosoftDocs/sql-docs, public commit history of the ESU articles. github.com Accessed November 2026.