Best Fake Address for Claude AI Signup – Tax-Free State Guide 2025
Signing up for Claude by Anthropic requires a billing address if you're subscribing to Claude Pro ($20/month) or using the API with pay-as-you-go pricing. Choosing the right fake address from a tax-free state saves you money and reduces verification friction. This guide breaks down the optimal state, ZIP code, and supporting details for a seamless Claude registration.
Why Oregon 97201 Is the Best Choice for Claude
Oregon has a 0% sales tax rate, meaning no additional tax on your $20/month Claude Pro subscription or API usage charges. The ZIP code 97201 corresponds to downtown Portland, Oregon's largest city with a population of approximately 635,000. This makes addresses in this ZIP statistically common and less likely to trigger manual review. The area code is 503 or 971, the timezone is Pacific (UTC-8), and the local utility provider is Portland General Electric. Oregon driver's licenses follow the format of 1 letter followed by 6 digits (e.g., D123456).
How Claude's Billing Verification Works
Anthropic processes all payments through Stripe, which performs Address Verification System (AVS) checks. AVS compares the ZIP code and street number you enter with the data on file at your card issuer. If you use a virtual card service like Privacy.com, Wise, or Revolut, you can set the billing address to match your generated Oregon address exactly — ensuring the AVS check passes. Claude does not currently require phone verification for all accounts, but Anthropic has tested SMS verification in select cases. If prompted, you'll need a number with a 503 or 971 area code, obtainable via Google Voice or TextNow.
IP Address Consistency
Anthropic logs IP addresses for security purposes. If your actual IP shows a non-US location, this could flag your account. Residential proxy services offering Oregon IPs (such as IPRoyal, Bright Data, or Smartproxy) cost approximately $7-12 per GB and provide legitimate-looking Portland IP addresses. Set your system timezone to Pacific Time and your browser language to en-US for full consistency.
Alternative Tax-Free States
Delaware (19801, Wilmington, area code 302, Eastern Time, Delmarva Power) and Montana (59101, Billings, area code 406, Mountain Time, NorthWestern Energy) are viable backups. However, Portland's larger population and higher address density make Oregon the superior choice for plausibility. New Hampshire (03101, Manchester, area code 603, Eversource) and Alaska (99501, Anchorage, area code 907, Chugach Electric) are less commonly used and may attract more scrutiny.
Final Recommendation
For Claude AI signups, use a generated address in Oregon 97201 (Portland). Pair it with a virtual card set to the same billing ZIP, a 503 area code phone number, and a Pacific Time timezone setting. This combination provides zero sales tax, high plausibility, and minimal verification risk.