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Retainer Agreement Template

Consultants and Professional Services Resource

Document prepaid or monthly advisory work with a retainer agreement template for consultants, attorneys, marketers, and other professional-service providers. Capture the parties, services covered by the retainer, amount and refresh rules, unused-hour treatment, expenses, term, and how either side ends the relationship. Pair it with an MSA or engagement letter when you need standing legal terms. Not legal advice; confirm ethics and billing rules in your profession and state.

Retainer Agreement Template form template preview

Key Benefits

State what the retainer covers and what is extra
Set amount, billing cycle, and replenishment rules
Clarify unused hours, rollover, or forfeiture
Separate expenses from the retainer fee
Define term and termination notice
Align the retainer with an MSA or SOW

Common Use Cases

Monthly advisory retainers for consultantsLegal or accounting evergreen retainersMarketing and fractional-executive retainersPrepaid project retainers applied to invoicesOn-call support with a reserved-hour blockRenewing an annual professional-services retainer

Frequently Asked Questions

What is a retainer agreement?
A retainer agreement explains how a client prepays or pays periodically for access to professional services. It should say what work is included, how hours or deliverables are counted, when the fee is due, and what happens to unused amounts.
Is a retainer the same as an engagement letter?
Not always. An engagement letter defines a scoped matter. A retainer focuses on the fee arrangement for ongoing or prepaid access. Many firms use both: the letter or MSA for legal terms, the retainer for the payment structure.
What happens to unused retainer funds?
State it in writing: rollover to the next period, apply to a final invoice, or refund after reconciliation. Profession-specific trust-account rules (especially for lawyers) may control how you hold and apply funds.
Should overage work be billed hourly?
Often yes. Define the included scope or hours, the overage rate, and whether overages need written approval before work continues. That prevents disputes at month-end.

Checklist

Parties

Client and provider legal names and billing contacts
Required

Entity names and who receives invoices.

Scope

Services included in the retainer and expressly excluded work
Required

Hours, deliverables, or access model; how extra work is approved.

Fees

Retainer amount, due date, and replenishment or evergreen terms
Required

Monthly, quarterly, or prepaid project retainer.

Treatment of unused hours or unused prepaid funds
Required

Rollover, refund, or apply to final bill; trust-account rules if applicable.

Overage rate and pre-approval threshold
Required

Hourly rate and whether written approval is required.

Expense policy and receipt requirements

Travel, software, and third-party costs inside or outside the retainer.

Term

Start date, renewal, and termination notice
Required

What is owed on termination and how work in process is handled.

Service

Time or activity reporting the client will receive

Monthly hour summary or status note.