Service Level Agreement (SLA) Template
Service level agreement: definitions (SLA, SLO, SLI), service hours, availability formula, response times, exclusions, credits, signatures
사용법: Use it when a provider commits measurable service levels to a customer, standalone or as a schedule to a master agreement. Agree the measurement method together with the targets, and keep external targets looser than internal SLOs. This is a format, not legal advice; have counsel review credits, remedies and termination.
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Service Level Agreement: [Service name] between [Provider] and [Customer]
Complete service level agreement (SLA) between a service provider and a customer: parties, service description, definitions, service hours, measurable service levels, measurement and reporting, exclusions, responsibilities, support and escalation, service credits, review, termination and signatures. Based on common IT service management practice and the widely used distinction between SLA, SLO and SLI. Replace every
[bracketed]value and every row marked Example.Format, not legal advice. This template shows a typical structure and wording. Contract terms, liability and remedies depend on your jurisdiction and commercial agreement; have the final text reviewed by qualified counsel.
Document control
| Field | Value |
|---|---|
| Agreement ID | [SLA-CUSTOMER-2026-01] |
| Service | [Service name and plan or tier] |
| Version | [0.1] |
| Status | [Draft / Under negotiation / Signed / Superseded] |
| Effective date | YYYY-MM-DD |
| Term | [12 months, renewing automatically unless terminated per section 15] |
| Provider owner | [@service-owner] |
| Customer owner | [Customer contact name] |
| Parent agreement | [Master services agreement reference and date] |
| Classification | [Confidential] |
Approvals
| Role | Organisation | Name | Decision | Date |
|---|---|---|---|---|
| Service owner | [Provider] | [@name] | [Approved] | YYYY-MM-DD |
| Commercial / legal | [Provider] | [@name] | [Approved] | YYYY-MM-DD |
| Service manager | [Customer] | [Name] | [Approved] | YYYY-MM-DD |
| Procurement / legal | [Customer] | [Name] | [Approved] | YYYY-MM-DD |
Revision history
| Version | Date | Author | Change summary |
|---|---|---|---|
| 0.1 | YYYY-MM-DD | [@name] | Initial draft for negotiation |
| 0.2 | YYYY-MM-DD | [@name] | Example: Customer requested P1 response of 15 min; agreed for Enterprise tier only |
| 1.0 | YYYY-MM-DD | [@name] | Example: Signed by both parties |
Contents
- Agreement overview
- Parties and contacts
- Service description
- Definitions
- Service hours
- Service levels
- Measurement and reporting
- Exclusions
- Provider responsibilities
- Customer responsibilities
- Support channels and incident handling
- Escalation
- Service credits
- Review and change
- Term and termination
- Signatures
- Appendices
1. Agreement overview
1.1 Purpose
This agreement sets out the levels of service that [Provider] will deliver to [Customer] for [Service], how those levels are measured and reported, and the remedies available if they are not met.
1.2 Scope
| In scope | Out of scope |
|---|---|
| Example: Production environment of [Service], [plan/tier] | Non-production and trial environments |
| Example: Public API and web application | Customer-built integrations and custom code |
| Example: Support for the named services in section 3 | Third-party services the Customer contracts directly |
| [Item] | [Item] |
1.3 Objectives
- Provide a shared, measurable definition of acceptable service.
- Set clear responsibilities for both parties.
- Provide a predictable process for reporting, escalation and credits.
1.4 Relationship to other agreements
[State the order of precedence. Example: "This SLA is Schedule 2 to the Master Services Agreement dated YYYY-MM-DD. If this SLA conflicts with the Master Services Agreement, the Master Services Agreement prevails except for service levels and service credits."]
2. Parties and contacts
| Party | Legal name | Registered address | Company number |
|---|---|---|---|
| Provider | [Legal entity name] | [Address] | [Number] |
| Customer | [Legal entity name] | [Address] | [Number] |
| Role | Provider contact | Customer contact |
|---|---|---|
| Service / account manager | [Name, email, phone] | [Name, email, phone] |
| Technical contact | [Name, email] | [Name, email] |
| Escalation contact | [Name, email, phone] | [Name, email, phone] |
| Billing contact | [Name, email] | [Name, email] |
Each party notifies the other in writing within [10 working days] of a change of contact.
3. Service description
[Describe the service. Example: "[Service] is a hosted order management platform providing a web application and REST API for creating, tracking and fulfilling orders, including data storage, backups and standard integrations listed below."]
| Component | Description | Covered by availability target |
|---|---|---|
| Example: Web application | Browser-based user interface at [URL] | Yes |
| Example: Public API | REST API at [URL], version [v2] | Yes |
| Example: Webhooks | Event notifications to customer endpoints | No, best effort; delivery latency target in 6.3 |
| Example: Reporting exports | Scheduled CSV exports | No |
| [Component] | [Description] | [Yes / No] |
Data location: [region or country]. Backups: [frequency and retention, for example "daily, retained 35 days, stored in a second region"].
4. Definitions
| Term | Meaning in this agreement |
|---|---|
| Service level indicator (SLI) | A quantitative measure of one aspect of the service, such as the share of successful requests or response time. |
| Service level objective (SLO) | An internal target value for an SLI that the Provider aims to meet. SLOs are usually stricter than the SLA and are not contractual. |
| Service level agreement (SLA) | This agreement: the commitments the Provider makes to the Customer, with the remedies that apply if they are not met. |
| Availability | The percentage of minutes in a measurement period in which the service is available, calculated as in 6.1. |
| Downtime | A minute in which [more than 5% of valid requests fail with a server error] or the service cannot be reached from the Provider's external monitoring locations. |
| Scheduled maintenance | Work announced at least [5 working days] in advance and performed within the maintenance window in section 5. |
| Incident | An unplanned interruption or reduction in quality of the service. |
| Priority | The urgency and impact classification of an incident (section 6.2). |
| Response time | Time from the Customer's report (or the Provider's detection) to the first meaningful human response. |
| Resolution time | Time until the service is restored or a workaround is in place that removes the business impact. |
| Measurement period | One calendar month, in UTC. |
| Service credit | A reduction of fees credited to the Customer when a service level is missed (section 13). |
| Working day / hours | [Monday to Friday, 09:00 to 18:00, time zone], excluding public holidays in [country]. |
5. Service hours
| Item | Hours |
|---|---|
| Service availability hours | 24 hours a day, 7 days a week |
| Standard support hours | [Monday to Friday, 08:00 to 20:00, time zone] |
| Priority 1 support | 24x7 for [Enterprise tier] |
| Scheduled maintenance window | [Sunday 01:00 to 05:00 UTC], at most [4 hours] per month |
| Emergency maintenance | Any time, with as much notice as practical; counted as downtime unless excluded in section 8 |
6. Service levels
6.1 Availability
Monthly availability is calculated as:
where is the number of minutes in the month, the minutes excluded under section 8 (including scheduled maintenance), and the downtime minutes.
| Tier | Availability target | Allowed downtime per 30-day month |
|---|---|---|
| Example: Standard | 99.5% | 3 h 36 min |
| Example: Business | 99.9% | 43 min 12 s |
| Example: Enterprise | 99.95% | 21 min 36 s |
| [Tier] | [%] | [Time] |
Allowed downtime per month is minutes for a 30-day month.
6.2 Incident response and resolution
| Priority | Definition | Example | Response time | Resolution target | Update frequency |
|---|---|---|---|---|---|
| P1 Critical | Service unavailable or major function unusable for all or most users; no workaround | Users cannot log in | 30 min, 24x7 | 4 h | Every 60 min |
| P2 High | Major function degraded or unavailable for a subset of users; workaround difficult | API error rate above 5% for one region | 2 h (support hours) | 1 working day | Every 4 h |
| P3 Medium | Minor function impaired; reasonable workaround exists | One report export fails | 1 working day | 5 working days | Daily |
| P4 Low | Question, cosmetic issue or feature request | Label misaligned | 2 working days | Next planned release or declined | On change |
The Provider assigns the initial priority based on the Customer's description and may adjust it with an explanation. Resolution targets are objectives; only response time and availability carry service credits unless stated otherwise in section 13.
6.3 Performance and other service levels
| ID | Service level | Target | Measurement |
|---|---|---|---|
| SL-01 | Example: API latency | 95% of API requests complete in under 800 ms | Provider server-side metrics, monthly |
| SL-02 | Example: Webhook delivery | 99% delivered within 60 s of the event | Delivery logs |
| SL-03 | Example: Data restore on request | Restore from backup within 1 working day | Ticket timestamps |
| SL-04 | Example: Recovery objectives in a disaster | RTO 8 h, RPO 1 h | Annual DR test report |
| [SL-nn] | [Service level] | [Target] | [Measurement] |
7. Measurement and reporting
7.1 Measurement method
- Availability is measured by the Provider's external synthetic monitoring from [three] locations every [60 seconds], combined with server-side error rates.
- A minute counts as downtime when [two or more locations fail, or server-side error ratio exceeds 5%].
- Response and resolution times are measured from timestamps in the Provider's support system.
- All times are recorded in UTC.
7.2 Reporting
| Report | Content | Frequency | Delivered by | Channel |
|---|---|---|---|---|
| Service level report | Availability, incidents by priority, response times, credits due | Monthly, by working day [5] | Provider service manager | Email and customer portal |
| Incident report | Timeline, impact, cause, corrective actions | Within [5 working days] of each P1 | Provider | |
| Service review | Trends, improvement plan, upcoming changes | Quarterly | Both parties | Meeting |
| Status page | Real-time status and incident updates | Continuous | Provider | [Status page URL] |
7.3 Disputes about measurements
The Customer may dispute a report within [30 days] of receipt, with supporting evidence. The parties review the data together; unresolved disputes follow the dispute process in the parent agreement.
8. Exclusions
Downtime or missed service levels are not counted when caused by:
- Scheduled maintenance performed within the window and notice period in section 5.
- Actions or omissions of the Customer or its users, including misuse, exceeding documented usage limits, or changes made against Provider guidance.
- Customer equipment, networks, integrations or third-party services not provided by the Provider.
- Suspension of the service in accordance with the parent agreement, for example for non-payment or security risk.
- Force majeure events as defined in the parent agreement.
- Features labelled beta, preview or trial.
- [Other specific exclusion]
9. Provider responsibilities
The Provider will:
- operate, monitor and maintain the service to meet the levels in section 6;
- give notice of scheduled maintenance at least [5 working days] in advance;
- notify the Customer of P1 incidents within [30 minutes] of detection;
- provide the reports in section 7.2;
- maintain backups and disaster recovery arrangements as described in section 3 and SL-04;
- maintain security controls as described in [security schedule or policy];
- notify the Customer of material changes to the service in line with section 14.
10. Customer responsibilities
The Customer will:
- report incidents through the channels in section 11 with the information requested in 11.2;
- name authorised contacts and keep them current;
- use the service in line with the documentation and usage limits;
- provide reasonable access, information and cooperation needed to resolve incidents;
- keep its own credentials secure and manage its users' access;
- test and maintain its own integrations, including updating to supported API versions within [12 months] of a deprecation notice.
11. Support channels and incident handling
11.1 Channels
| Channel | Use for | Availability | Contact |
|---|---|---|---|
| Phone hotline | P1 incidents | 24x7 for eligible tiers | [Number] |
| Support portal | All priorities | 24x7 submission; handled in support hours | [URL] |
| P3 and P4 | Support hours | [Address] | |
| Status page | Service status and updates | 24x7 | [URL] |
11.2 Information to include in a report
Affected component, time the issue started (with time zone), number of users affected, error messages or request IDs, steps to reproduce, and business impact.
11.3 Incident lifecycle
The lifecycle above shows the states recorded in the support system; response and resolution times are measured between these states.
12. Escalation
| Level | Provider contact | Customer contact | Trigger |
|---|---|---|---|
| 1 | Support engineer on duty | Reporting user | Initial report |
| 2 | Support team lead [name, contact] | Customer IT manager [name] | Response target missed, or no progress on P1 for 2 h |
| 3 | Head of service delivery [name, contact] | Customer head of IT [name] | P1 unresolved after 4 h, or repeated misses in a month |
| 4 | Executive sponsor [name, contact] | Customer executive sponsor [name] | Material breach or relationship risk |
Either party may escalate one level at a time by contacting the named person and stating the ticket number and reason.
13. Service credits
13.1 Availability credits
| Monthly availability achieved | Credit as % of monthly fee for the affected service |
|---|---|
| Example: Below 99.9% and at or above 99.5% | 5% |
| Example: Below 99.5% and at or above 99.0% | 10% |
| Example: Below 99.0% and at or above 95.0% | 25% |
| Example: Below 95.0% | 50% |
| [Range] | [%] |
13.2 Response time credits
| Missed target | Credit |
|---|---|
| Example: P1 response time missed | 2% of monthly fee per occurrence |
| Example: P2 response time missed three or more times in a month | 2% of monthly fee |
| [Target] | [Credit] |
13.3 Conditions
- Total credits in a month are capped at [50%] of the monthly fee for the affected service.
- The Customer requests credits in writing within [30 days] after the monthly report.
- Credits are applied to the next invoice and are not paid as cash unless the agreement ends.
- [State whether service credits are the Customer's sole and exclusive remedy for missed service levels, as agreed with counsel.]
- Repeated failure: if availability is below [99.0%] in [three] consecutive months, the Customer may terminate the affected service under section 15.
14. Review and change
- The parties hold a service review every [quarter] using the reports in 7.2.
- This SLA is reviewed at least [annually] and at renewal.
- Either party may propose changes in writing. Changes take effect only when signed by both parties and recorded in the revision history.
- The Provider may improve service levels at any time; it may not reduce them during the term without the Customer's written agreement.
15. Term and termination
This SLA starts on the effective date and continues for the term in the document control table. It renews and ends together with the parent agreement. In addition to rights in the parent agreement, the Customer may terminate the affected service with [30 days] written notice under the repeated-failure condition in 13.3. On termination the Provider supports data export as described in [data return clause].
16. Signatures
Signed by the authorised representatives of the parties.
| Provider | Customer | |
|---|---|---|
| Organisation | [Legal entity name] | [Legal entity name] |
| Name | [Name] | [Name] |
| Title | [Title] | [Title] |
| Signature | ____________________ | ____________________ |
| Date | YYYY-MM-DD | YYYY-MM-DD |
17. Appendices
Appendix A. Worked credit example
Example: In a 30-day month (43,200 minutes) with 180 minutes of scheduled maintenance and 62 minutes of downtime on the Business tier:
This is below 99.9% and at or above 99.5%, so the credit is 5% of the monthly fee.
Appendix B. Monitoring locations and endpoints
| Location | Endpoint checked | Interval |
|---|---|---|
| [Region 1] | [URL or health endpoint] | 60 s |
| [Region 2] | [URL] | 60 s |
| [Region 3] | [URL] | 60 s |
Appendix C. Related documents
| Document | Reference |
|---|---|
| Master services agreement | [Reference] |
| Data processing agreement | [Reference] |
| Security schedule | [Reference] |
| Service catalogue entry | [Reference] |
Standard and licence note
Based on common IT service management practice for service level agreements and on the widely used SRE distinction between SLIs, SLOs and SLAs. The definitions and wording are original text written for this collection. This template is a document format, not legal advice; have any agreement reviewed by qualified counsel before signing. Template licence: MIT.
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