Do You Need a US Phone Number for an LLC?
Not for the two steps most founders worry about: Wyoming LLC formation and the IRS EIN application (Form SS-4) both go through with a foreign phone number or no phone number listed at all. A US number becomes relevant three steps later.
| Situation | US phone number needed? |
|---|---|
| Wyoming LLC formation (Articles of Organization) | No |
| IRS EIN application (Form SS-4) | No |
| Bank account verification (Mercury, Relay) | Recommended - speeds up review |
| Stripe account setup and verification | Requested during review |
| PayPal Business account verification | Requested during review |
| Occasional IRS callback during EIN processing | Helpful if the IRS needs to reach you |
| Two-factor authentication (bank, Stripe logins) | Required - any number that receives SMS works |
A missing US number rarely blocks these steps outright. It adds friction: a bank sends a follow-up question by email instead of confirming instantly, or a Stripe review takes 2-3 extra business days instead of clearing same-day.
How Do Non-Residents Get a US Phone Number?
- Try Google Voice first. Google Voice is free and accepted by most banks and Stripe, but signup can require a US-based existing number or a US IP address to complete - a common snag for non-residents signing up from abroad.
- Fall back to a paid VoIP number if Google Voice signup fails. OpenPhone and JustCall both offer US numbers to international customers for $3-15/month, with no US presence required to sign up.
- Pick a US area code. Any of the 335+ US area codes works for banking and Stripe purposes - a Wyoming (307) or otherwise neutral area code avoids implying a physical presence you do not have.
- Use the number consistently across applications. List the same number on your EIN application, bank account applications, and Stripe account - a number that changes between applications is a more common verification snag than the VoIP number type itself.
Can You Use WhatsApp Instead of a US Phone Number?
No. WhatsApp runs on top of an existing phone number rather than issuing a new one, so it cannot substitute for a US number on a bank or Stripe application. Mercury, Relay, and Stripe all ask for a number capable of receiving a standard SMS or voice call - a Google Voice or VoIP number satisfies this, but a WhatsApp-only contact method does not appear as an option on any of their verification forms.
What Area Code Should You Choose for a US Business Number?
Any of the 335+ active US area codes works for LLC banking and Stripe purposes - no bank or payment processor rejects an application over area code choice. Google Voice and most VoIP providers let you search by area code during signup; a Wyoming (307), Delaware (302), or generic toll-free (800/888) number avoids implying a specific city presence you do not have, while a number matching your bank's home state (Mercury and Relay are both headquartered in California, area codes 415/650) carries no verification advantage either way.
Which Services Reject VoIP Numbers?
Most services accept VoIP numbers today, but a few flag or reject them depending on the specific carrier behind the number.
| Service | VoIP acceptance | Notes |
|---|---|---|
| Mercury | Accepts | No documented pattern of rejecting Google Voice or major VoIP providers for account verification. |
| Relay | Accepts | Same as Mercury - VoIP numbers work for account setup. |
| Stripe | Mostly accepts | Accepts VoIP for account setup; SMS verification on some VoIP carriers can be unreliable, so a backup verification method helps. |
| PayPal Business | Mostly accepts | Accepts VoIP numbers for account setup and 2FA in most cases. |
| IRS (EIN application) | No number required | Form SS-4 does not require a US phone number of any kind, VoIP or otherwise. |
| Two-factor authentication (banks, Stripe) | Works for major providers | Google Voice and major VoIP providers receive SMS codes reliably; obscure or free-trial VoIP apps are the ones that occasionally fail. |
What Is the Difference Between a VoIP Number and a Business Phone System?
A VoIP number is a single phone line delivered over the internet instead of a traditional carrier - Google Voice and basic OpenPhone or JustCall plans fall into this category. A business phone system adds features on top of the number itself: an auto-attendant that routes callers by menu option, multiple extensions for team members, call recording, and CRM integration.
| Feature | Basic VoIP number | Business phone system |
|---|---|---|
| Single US number | Yes | Yes |
| Voicemail transcription | Yes (Google Voice, OpenPhone) | Yes |
| Auto-attendant / call menu | No | Yes (RingCentral, Grasshopper) |
| Multiple extensions for a team | No | Yes |
| Typical monthly cost | $0-15 | $20-30 per user |
A single-member LLC with no support team rarely needs more than a basic VoIP number - the auto-attendant and multi-user features on RingCentral or Grasshopper solve a staffing problem most non-resident founders do not have yet.
What Does a US Phone Number Cost?
| Option | Monthly cost | Notes |
|---|---|---|
| Google Voice | $0 - free | Works for most banks and Stripe once signup is complete; the signup step itself is the main friction for non-residents. |
| OpenPhone | $15/month | No US presence required to sign up; built for small business use with call routing and voicemail transcription. |
| JustCall | $3-15/month depending on plan | Similar to OpenPhone; lower tiers cover basic call/SMS needs. |
| Grasshopper | $18-80/month | Adds auto-attendant and multiple extensions; overkill for a single-member LLC. |
| RingCentral | $20-35/user/month | Full business phone system; priced per user, so cheapest for teams of 3+. |
How Do You Receive Two-Factor Authentication Codes Without a US SIM Card?
Google Voice and paid VoIP numbers both receive standard SMS text messages, which covers two-factor authentication for Mercury, Relay, Stripe, and PayPal without needing a physical US SIM card. The number works the same way a mobile carrier number does for this purpose - the bank or processor sends a 6-digit code by SMS, and the VoIP app displays it like any other text message.
Can You Port a US Phone Number to a Different Provider Later?
Yes. Google Voice, OpenPhone, and JustCall all support porting a number out to a different provider, a process that takes 3-10 business days and requires the account holder's name, billing address, and account PIN from the losing provider. Google Voice specifically charges a one-time $3 porting fee to move a number out; OpenPhone and JustCall port both directions at no extra charge on most plans. The number itself stays the same throughout, so bank, Stripe, and PayPal records tied to that number do not need updating after a port.