Developers, designers, and consultants
Maintenance retainer template
Define recurring service coverage, request limits, response windows, invoice cadence, overages, and termination.
When to use it
Use this when a client is paying for recurring maintenance, design support, or advisory access after or alongside a defined project.
Replace every bracketed field before sending.
01
Retainer term and fee
Client: [Client legal name] Professional: [Your legal or business name] Service period begins: [Date] Initial term: [Month-to-month / fixed term] Retainer fee: [Amount and currency] Invoice cadence: [Monthly / quarterly] Payment due: [In advance / number of days]
02
Included services
The retainer includes: • [Maintenance, monitoring, review, or advisory service] • [Included meeting or request cadence] • [Monthly allowance or capacity, if applicable] • [Supported systems, products, or workstreams] Requests must be submitted through: [Named channel]
03
Service window
Support hours: [Days and time zone] Target initial response: [Number] business hours Target delivery is estimated after the request is reviewed and depends on its scope, priority, and required client inputs. A response target is not a guaranteed resolution time unless expressly stated.
04
Exclusions and additional work
The retainer does not include: • [New products, major features, redesigns, or emergency coverage] • [Third-party fees, travel, or specialist costs] • [Work outside supported systems or agreed hours] Work beyond the allowance will require [an overage fee of amount / a separate change order] before it begins.
05
Unused capacity, pause, and termination
Unused capacity [does not roll over / rolls over subject to this limit: ___]. The fee reserves the service access and capacity described above. Either party may end the retainer with [number] days’ written notice. Fees already due remain payable, and active work will be handed over according to [handover rule].
Before you send it
Customize the commercial details.
- 01Say whether the client is buying reserved access, specific outputs, hours, or a combination.
- 02Define the valid request channel and service time zone.
- 03Choose one explicit rollover rule.
- 04Separate large new projects from retainer work.
Put the approved terms into the workflow
Keep the agreement, invoices, follow-up, and payment record connected.
This template is a general commercial starting point, not legal, tax, or financial advice. Adapt it to the engagement and obtain professional advice where required.