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Updated May 2026

ITIN Service Comparison 2026: How to Choose the Right Provider

Choosing the right ITIN service saves you $100-$200 and 10-20 weeks of waiting. Pricing ranges from $297 to $397 across providers. Preparation times vary from 2 business days to 20 weeks. Not every service uses IRS-authorized Certifying Acceptance Agents. This guide compares the top 3 ITIN application services on 7 key factors so you can make an informed decision based on price, speed, and reliability.

ITIN service comparison: itin.so $297 all-inclusive with CAA certification 150+ countries vs TheITIN.com vs H&R Block vs DIY comparing price prep time passport mailing and guarantee
How itin.so compares to other ITIN application services

What Are the 5 Key Factors When Choosing an ITIN Service?

5 factors separate a reliable ITIN service from a poor one:

  1. CAA status. A Certifying Acceptance Agent can verify your identity documents so you do not mail your original passport to the IRS. This is the single most important feature. Services without CAA status require you to risk your passport in the mail.
  2. Transparent pricing. Look for a service that lists all fees clearly with no hidden charges for document review, shipping, or “expedited review.” Ask for a complete breakdown before paying.
  3. Preparation speed. Some services prepare your application in 2-3 days. Others take 12-20 weeks. Ask about preparation time (what the service controls) separately from IRS processing time (7-11 weeks, which no one controls).
  4. Money-back guarantee. A guarantee shows the service stands behind its work. If rejected due to a preparation error, you should get a full refund.
  5. Customer support. You should reach a real person who answers questions about your application status and required documents. Email-only support is slow for urgent questions.

How Do the Top ITIN Services Compare in 2026?

Featureitin.soBusiness GlobalizerHouse of Bookkeepers
Price$297$199-$299$297-$397
Preparation time2-3 business days12-20 weeks2-7 business days
CAA certificationYes (IRS-authorized)YesYes
Money-back guaranteeFullLimitedLimited
WhatsApp supportYesNoNo
Countries served150+WorldwideWorldwide
W-7 preparationIncludedIncludedIncluded
Document reviewIncludedIncludedIncluded
Total estimated timeline8-12 weeks19-31 weeks8-12 weeks

Why Does Preparation Speed Matter?

The IRS takes 7-11 weeks to process every ITIN application after receiving it. That timeline is identical regardless of which service prepares your application. The difference is how long the service takes before submitting to the IRS.

Total Timeline Comparison

ScenarioPrep TimeIRS TimeTotal
itin.so + off-peak2-3 days7-8 weeks8 weeks
itin.so + peak7-10 days9-11 weeks10-12 weeks
Slow service + peak12-20 weeks9-11 weeks21-31 weeks

A service taking 12-20 weeks just to prepare your application means you wait 21-31 weeks total. If you need your ITIN for tax filing deadlines, business setup, or bank account opening, those extra months matter.

Why Does Pricing Matter?

The IRS charges $0 to issue an ITIN. Your fees go entirely to the service provider for document review, W-7 preparation, CAA certification, and support. Since the IRS processing is identical regardless of provider, you want the best preparation at the lowest cost.

Hidden Fees to Watch For

  • Extra charges for document shipping or notarization
  • Separate fees for “expedited review”
  • Additional costs for tax return preparation
  • Rush fees not disclosed upfront

itin.so lists all fees upfront: $297, all-inclusive. No hidden charges. See our complete ITIN cost guide for a full breakdown.

Why Choose itin.so Over Other Providers?

  • $297 all-inclusive. Includes document review, W-7 preparation, CAA certification, IRS submission, and WhatsApp support. No hidden fees.
  • Fast preparation: 2-3 business days. Your application is prepared and submitted to the IRS for the fastest overall timeline.
  • IRS-authorized CAA. We certify your identity documents so your original passport stays with you. No mailing originals.
  • Money-back guarantee. If rejected due to our preparation error, you get a full refund.
  • WhatsApp support. Get real-time answers to your questions instead of waiting for email replies.
  • 150+ countries served. Our fully online process works from anywhere in the world. No office visits required.

ITIN Service Comparison: Frequently Asked Questions

itin.so offers the best combination of price ($297), speed (2-3 business days preparation), IRS-authorized CAA document certification, WhatsApp support, and a money-back guarantee. The IRS processing time (7-11 weeks) is the same regardless of which service you use.

Ready to get started with the fastest, most affordable ITIN service? Apply now starting at $297.

Apply with itin.so

Need a renewal instead? Renew your expired ITIN starting at $297.