ITINsupport.com
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Serving across the U.S. and around the globe

ITIN help without the confusion.

An ITIN is a U.S. tax number for people who cannot get a Social Security number (SSN). We prepare your application with you, check your documents, and tell you what happens next. We also help founders set up a new business.

Start my applicationHow it works

an Incwell Tax & Consulting service

Apply

Tell us what you need.

Start with a few basics. We confirm your tax reason, review what you will need, and send your next step.

What we ask for later

You do not need any of this to send the form.

Personal
Legal name, birth details, citizenship
Tax reason
Spouse, dependent, nonresident return, treaty benefit, or another W‑7 reason
Address 1
Foreign residential address
Address 2
U.S. mailing address, if you have one
Documents
Passport, or other approved identity and foreign-status documents
Review
Form W‑7, Form W‑7‑COA coordination, and your checklist
About you
What you need

Do not send documents here. No passport scans, ITIN or SSN numbers, or ID images. After we confirm your path, we send a secure upload link for those.

We email you a confirmation right away, and get back to you within 24 hours.

Services

One place for the essentials.

Two focused paths, and a tailored plan that combines them.

For individuals

Complete ITIN Application

For individuals, spouses, and founders who need a taxpayer number for a U.S. federal tax purpose. It starts with Form W‑7 — the IRS application for an ITIN.

  • Form W‑7 preparation, and a review of your reason for applying
  • Form W‑7‑COA — a Certificate of Accuracy — prepared by a Certifying Acceptance Agent (CAA) when your application uses one
  • Address review, and a checklist of supporting documents
  • Guidance on how to submit, and what to do next
  • Spouse applications, for eligible joint-filing situations
  • Renewal of an expired ITIN, when a federal return requires it
Start an ITIN application

For founders

Startup & Business Setup

For founders and small businesses that need formation, a tax number, an agent, banking guidance, compliance, and advice in one place.

  • Business formation
  • EIN service — an EIN is a federal tax number for a business
  • Registered agent — the official address for your company’s legal mail
  • Bank guidance
  • Business bank account opening assistance
  • Compliance
  • Consultation and advisory
Start a business setup

Tailored

Premium

Everything in both services, plus tax filing coordination, multi-member or multi-entity support, compliance and bookkeeping alignment, and a roadmap for your situation. Custom plan.

Ask about Premium

Process

Simple process.

Four steps, from your first message to your next step.

  1. Choose your path

    Complete ITIN Application, Startup & Business Setup, or Premium.

  2. Complete intake

    Share your basic details, tax reason, addresses, and documents.

  3. Review

    We review your information and tell you what needs attention before anything is final.

  4. Continue

    You receive your next steps for filing, renewal, or business setup.

IRS timing. After an ITIN application reaches the IRS, allow 7 weeks to hear back. It can take 9–11 weeks in tax season (January 15 to April 30), or if you apply from outside the U.S. No news during that time is normal.Source: IRS, How to apply for an ITIN. Page updated February 22, 2026.

Common situations

Real tax moments.

Common filing situations, and how an ITIN affects tax credits.

ITIN documents

The 13 accepted ITIN documents

What each document proves, according to the IRS instructions for Form W‑7.

DocumentForeign statusIdentity
PassportThe only stand-alone documentYesYes
U.S. Citizenship and Immigration Services (USCIS) photo IDYesYes
Visa issued by the U.S. Department of StateYesYes
National identification cardMust show name, photo, address, date of birth and expiry dateYesYes
Foreign military identification cardYesYes
Foreign voter’s registration cardYesYes
Civil birth certificateRequired for dependents under 18 without a passportYes, if foreignYes
Medical recordsDependents under 6 onlyYes, if foreignYes
School recordsDependents under 24 who are students onlyYes, if foreignYes
U.S. driver’s licenseNoYes
Foreign driver’s licenseNoYes
U.S. military identification cardNoYes
U.S. state identification cardNoYes

A passport alone is enough

It is the only document that proves identity and foreign status by itself. For a dependent, it must show a U.S. date of entry, or more documents are needed.

Without a passport, send at least two

Together they must prove identity and foreign status. At least one needs your photo, unless the applicant is a dependent under 14, or under 18 if a student.

Originals or certified copies only

A certified copy must come from the agency that issued the document. Notarized copies are not accepted, except for spouses and dependents of U.S. military personnel applying from overseas.

Sources: IRS, Instructions for Form W-7 (December 2024), ITIN supporting documents, and Revised application standards for ITINs.

Go to the application form

Tax credits available with an ITIN

Credit for Other Dependents

Up to $500 for each dependent with an ITIN who does not qualify for the Child Tax Credit. The dependent must be a U.S. resident for tax purposes.

Source: IRS, Child Tax Credit, updated September 21, 2026.

Tax credits available with an ITIN

Child Tax Credit

Up to $2,200 per child, but the child needs an SSN, and so do you or your spouse. A child with an ITIN can get the $500 credit instead.

Source: IRS, Child Tax Credit, updated September 21, 2026.

Tax credits available with an ITIN

Filing jointly

An ITIN lets your spouse join your return. The joint standard deduction is twice the separate one, and education credits stay available. Your spouse’s worldwide income must then be reported.

Sources: IRS, Nonresident spouse and Publication 501.

Common situation

Spousal applications

Joint filing can require ITIN coordination when one spouse is not eligible for an SSN.

Read the answer

Common situation

ITIN renewals

An expired ITIN may delay processing, or affect certain credits, if it is used on a federal tax return.

Read the answer

FAQ

Frequently asked questions.

Helpful answers. Clear limits.

Is ITINsupport.com part of Incwell?

Yes. ITINsupport.com is a DBA/service brand of Incwell Consulting Corp., known as Incwell Tax & Consulting. ITINsupport.com and consultingincwell.com operate independently under the same organization.

Do I need an ITIN?

You may need an ITIN if you have a U.S. federal tax purpose and are not eligible for an SSN.

Does an ITIN authorize work or immigration status?

No. An ITIN is for U.S. federal tax purposes only. It does not authorize work, change immigration status, or replace an SSN.

What is Form W‑7‑COA?

Form W‑7‑COA is the Certificate of Accuracy completed by a Certifying Acceptance Agent for CAA-supported ITIN applications.

Can a spouse apply for an ITIN?

A spouse who is not eligible for an SSN may apply with Form W‑7 when included in an eligible federal tax return package or another qualifying W‑7 reason.

Can an ITIN help with tax credits?

An ITIN may be relevant to certain allowable tax benefits, but credit eligibility depends on IRS rules, timing, and the full tax return.

When does an ITIN need to be renewed?

An ITIN that has expired may need renewal before it is used on a U.S. federal tax return. Using an expired ITIN can delay processing or affect certain tax benefits. We review your situation and confirm whether a renewal applies before you file.

Is this legal or tax advice?

This site provides general information. Service scope and professional tax advice are confirmed through an engagement review.

Can non-U.S. founders use Startup & Business Setup?

Yes. Startup & Business Setup supports business formation, EIN service, registered agent, bank guidance, business bank account opening assistance, compliance, consultation, and advisory.

Contact

Start with one clear next step.

Tell us whether you need Complete ITIN Application, Startup & Business Setup, or Premium support.

Focused and independent. ITINsupport.com operates separately from Incwell Tax & Consulting and consultingincwell.com, with its own client experience.

hello@itinsupport.comStart application