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Apostille Services in California

Apostille California Issued Documents The Same Day
Standard
$175
  • 4-14 business days
  • 1-2 weeks or 8-12 weeks**
Rush
$225
  • 1-3 business days*
Same Day
$275
  • 24 hours*

Expedited authentication, notary & translation services in California

When traveling to another country, either for business or pleasure, you may be required to show proper documentation. But more than that, each document may also need to be authenticated.

When you need to present your paperwork to another country, you require a certificate of authentication that verifies the attached signatures and seals.

There are two types of validation:

  1. Have your document apostilled
  2. Have your document legalized by the Embassy/Consulate

Did you know… the word apostille is French for ‘certificate’

If you are unsure which verification your destination country requires, don’t worry; we are here to assist you. As experts in apostille services, we know which type of authentication is required and have worked with nearly every country in the world. We can help you properly apostille your documents.

The Hague Convention of 1961 established a uniform process of confirming the authenticity of documents. Countries belonging to this convention accept the apostille, while non-member countries only accept legalized documents that are processed through the Embassy or Consulate.

For example: Italy, France, and Costa Rica all accept an apostille as a way to prove the authenticity of a document. And China, Thailand, and the UAE all require embassy legalization.

Apply online
Submit our form online and calculate an estimated cost immediately. We will also review a scan of your documents for any errors and let you know ASAP if additional steps are required.
Send us your documents
No need to make an appointment or go to a physical location. Just mail us your documents through a secure tracked shipping service (FedEx, DHL, or UPS). In some cases we may not even need the physical copy!
Receive your documents
Once completed, your apostilled/legalized documents will be shipped to you via FedEx or DHL and will arrive at your doorstep. Whether in the US or Worldwide, we’ll get your important documents to you wherever you may be.

Documents We Apostille in the USA

Personal or Family Documents
  • Marriage certificates
  • Death certificates
  • Birth certificates
  • Divorce decrees
  • Single status affidavits
  • Power of attorney
  • Wills
  • Car titles
  • Adoption dossier
  • FBI records
  • Criminal history reports
  • Any notarized document
Corporate Documents
  • Certificates of good standing
  • Certificates of incorporation
  • Certificates of origin
  • Power of attorney
  • Hiring documents
  • Company invoices
  • Other business documents
Academic Documents
  • High school
  • GED
  • College diplomas
  • Report cards
  • Other various school records

Place an order to calculate your cost or talk to our experts

Testimonials from real clients

Don Pelletier
Broker & Real Estate Consultant
I highly recommend One Source Process for all of your document legalization needs. I will recommend them to my colleagues, friends, and incoming employees for overseas employment. They tackled two complex problems for me with ease. They communicated well and addressed all my concerns in a prompt manner through email and phone calls. If you ever need document legalization services, call no one else, I won’t.
The Don Pelletier Group, Inc
Holly Webb
Personal Assistant
We have used a few different process servers and no one has provided the level of customer service that One Source Process has. They are very reliable and they communicate every step of the way. Alex and Brandon have been a huge help and they always take their time to understand our needs. We look forward to working with One Source Process for a long time
Schoppl Law
Bryan Cosgrove
Personal Assistant
Professional and efficient - Having not been through the Apostille Service previously, we were guided and taught what we were doing by extremely professional and courteous individuals. We couldn't be more pleased at the efficiency and the speed at which they were able to get the job done. The final product was accepted by the bank and the beneficiaries of the estate received their funds, everyone was happy. Thank you, One Source Process, Inc.
The Law Offices Of George Castrataro

Ask us anything!

Our CEO Brandon Yoshimura and Director of Operations Danny Koo.

Ask us anything!

    CEO Brandon Yoshimura (left) and Director of Operations Danny Koo (right) outside of our office in Washington, DC.