Affidavit of Service Template (US)

Proof of service is about method, not just delivery

A useful affidavit does more than say papers were delivered. It describes the method that the applicable rule allows. Personal delivery to an individual is different from leaving papers with a suitable person at a dwelling, mailing documents after substituted service, serving a registered agent, emailing under a consent or court order, or filing a certificate through an electronic court system. If the affidavit does not match the permitted method, the recipient may challenge service even if they actually saw the papers.

Federal civil practice shows the distinction clearly. Federal Rule of Civil Procedure 4 requires proof of service unless service is waived, and proof generally must be made by the server's affidavit unless service was made by a US marshal or deputy marshal. Rule 4 also has separate rules for serving individuals, corporations, the United States, foreign defendants, minors, and incompetent persons. State courts and local federal districts add their own details.

Use the court's form when one is required

Many courts prefer or require a specific proof-of-service form. In federal civil cases, the AO 440 summons package includes a proof-of-service section; other federal forms handle waivers and subpoenas. State courts often have their own forms for small claims, family, landlord-tenant, probate, and civil matters. Some systems require an attorney certificate of service for papers served after the case begins, not a notarized affidavit.

This template is best used when no official form is required, when you need a supporting affidavit for a file, or when a local rule asks for a sworn statement with the same factual elements. If a court clerk, e-filing system, or judge's order names a specific form, use that form first and attach this affidavit only if it helps explain the service event.

What a complete service affidavit should capture

A complete affidavit identifies the case, the served documents, the recipient, the method, the service address or electronic address, the server's qualification, and the exact date and time. If service was attempted more than once, the attempt log matters because it shows diligence. If service was made on an agent or another person, the affidavit should explain that person's capacity and relationship to the recipient.

The server should sign only what the server personally knows. A lawyer can certify service they made through the e-filing system. A process server can swear to their attempts, observations, and delivery. A party should check whether they are allowed to serve at all; many rules require service by a nonparty adult or a designated officer.

Clause-by-clause guide

Court and case details

Identifies the court, case name, docket or case number, and the party for whom service was made.

Server qualification

States the server's age, nonparty status, registration or license if applicable, and address or business information.

Documents served

Lists each document served so the affidavit is not just a generic receipt.

Recipient and capacity

Names the person served and, if different from the party, explains whether they are a registered agent, attorney, household member, office manager, or authorized recipient.

Service method

Changes the statement to match personal delivery, substituted service, mail, courier, electronic service, or service on an authorized agent.

Attempt log

Records unsuccessful attempts, dates, times, and observations when diligence is relevant.

Declaration and notary

Provides sworn affidavit language and a notary block, but users must replace it if the court requires a declaration, certificate, or official form.

US compliance checklist

Confirm the governing rule before relying on a proof-of-service affidavit.

• Check who is allowed to serve

  Rules often require service by a nonparty adult, sheriff, marshal, process server, or another qualified person. A party to the case may be disqualified from serving certain papers.

• Match the affidavit to the permitted method

  Personal, substituted, mail, agent, courier, and electronic service have different factual requirements. The affidavit should not claim legal compliance without recording the facts that support the method.

• Federal summons service requires proof unless waived

  Federal Rule of Civil Procedure 4 requires proof of service unless service is waived; except for service by a US marshal or deputy marshal, proof must generally be by the server's affidavit.

  Federal Rules of Civil Procedure - Rule 4

• Use official forms where applicable

  The US Courts civil-forms library includes national forms for summonses, subpoenas, notices, and waivers. Local districts and state courts may require their own proof-of-service form or e-filing certificate.

  U.S. Courts - Civil Forms

• Include exact date, time, location, and recipient capacity

  Deadlines may turn on the service date, and validity may turn on whether the right person received the documents. Approximate service details invite challenge.

How to use this affidavit

1. Confirm the governing rule. Check the court, statute, contract, or agency rule that says how service must be made.
2. Use any required official form. If the court requires a specific proof, certificate, or return of service, complete that form first.
3. Fill in the case and documents. Add the court name, case number, parties, and a complete list of the documents served.
4. Choose the service method. Select personal, substituted, mail, courier, electronic, or authorized-agent service and complete the matching details.
5. Sign and file correctly. The server signs under oath or declaration as required, then files or delivers the proof through the court's required process.

Frequently asked questions

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