Certa prepares your Form W-7 and, if needed, your U.S. federal tax return. An IRS-authorized Certifying Acceptance Agent authenticates your identity documents, prepares the filing package, and keeps you updated until the IRS responds.
Your original passport is reviewed by your CAA and returned to you with tracking — it is not ordinarily mailed inside your IRS application package. Physical inspection by the CAA is required.
About two minutes. No payment required.
Complete service with federal return preparation: $499 one time. Already have a completed return? ITIN service is $249.
Your document
Returning to you — tracked
Your original passport is reviewed by your CAA — not mailed inside your IRS application package.
How your passport is handled
IRS rules require your Certifying Acceptance Agent to physically possess and inspect your original passport or an issuing-agency-certified copy during your verification interview. Certa provides the approved delivery instructions, records custody the moment your document is received, and returns the original to you with tracking after authentication.
Available review methods, expected timing, and any shipping details for your location are shown and confirmed with you before you pay. Full details in the FAQ.
Is Certa right for you?
Certa currently supports primary applicants only — spouse and dependent applications aren’t available yet. The free eligibility check will tell you right away, and can notify you when that changes.
How it works
You answer plain questions and hand over one document. Certa's professionals do the rest.
Answer a few questions and see whether Certa currently supports your situation. About two minutes, no payment.
Complete a plain-language intake instead of working through IRS forms alone. Certa prepares your Form W-7 — and your federal tax return if you need one.
Follow Certa's secure delivery instructions for your original passport or an issuing-agency-certified copy. Your CAA physically examines it during your interview, records the result, and returns the original with tracking.
Certa assembles the filing package, mails it to the IRS with tracking, and keeps your dashboard updated through the IRS response.
What you’re paying for
The IRS is a black box. Certa isn’t. From the first eligibility question to the envelope’s tracking number, a real case team does the work and your dashboard shows every step in plain language.
Federal tax owed to the IRS is not included — it always remains the taxpayer’s responsibility. IRS approval and processing time can’t be guaranteed by any service.
Who handles your case
An IRS-authorized Certifying Acceptance Agent listed in the IRS Maryland directory.
Your assigned professional reviews your application, physically inspects your original identity document, signs the Certificate of Accuracy, prepares your filing package, and remains accountable for the case through dispatch.
On the IRS page, search for “Toa Tax Professional.”
Questions before you start? support@certa.tax
How your documents are protected
You're trusting us with your most important document. These are the actual controls.
Your passport number, dates, addresses, and tracking references are field-encrypted in our database, and every connection uses TLS.
Only the Certifying Acceptance Agent and staff assigned to your case can open your documents — enforced by the system, not by policy alone.
Every download of your documents and filing package is written to your case's audit history, along with every custody and filing decision.
Uploaded document images are stored privately and purged on a schedule after filing — they exist to prepare and verify your application, nothing else.
Pricing
Most applicants need the complete service — a first-time ITIN application is usually filed together with a federal tax return.
For applicants who need Certa to prepare the federal return.
$499one time
Tax owed to the IRS is not included. IRS approval and processing time are not guaranteed.
Check my eligibility — freeFor applicants with a completed, filing-ready federal return.
$249one time
You provide the completed return; Certa files the application around it.
You only pay after your free eligibility check confirms Certa supports your situation — and every document-handling detail is disclosed before payment.
Your case is handled by Toa Tax Professional. Verify Toa Tax Professional on IRS.gov
Questions, answered
The honest answers — including the ones other services bury.
Start with a free eligibility check. No payment and no IRS forms required.
Check my eligibility — free