How to Fill in a Billing Address So Subscriptions and Ads Don't Get Declined (AVS) — 2026
A wrong billing address gets your card declined on ChatGPT subscriptions and ad accounts. Here's exactly what to enter and why — so AVS passes the first time.
1. Why the billing address matters
Platforms use AVS (Address Verification System) to check that the billing address you enter matches what your card issuer has on file. A mismatch is one of the most common reasons a payment is declined — just as important as the card itself.
2. What address to enter
Enter the address that matches your card's registered billing address exactly. Your cocodot US-issued card has its own billing address details, visible when you open the card or in the card details — use those as-is, don't make anything up.
3. Formatting it right
US address format: street (Address line 1) + City + two-letter State code + ZIP (5 digits) + Country US. The name on the address should match the name on the card.
4. Tax-free state tip
Some platforms charge sales tax by state. A card registered in a tax-free state (like Oregon or Delaware) can mean less sales tax. Always go by your card's actual registered address.
5. Troubleshooting
If you keep getting declined, check three things: (1) is the card a US/international-capable card, (2) does the billing address match the card, (3) are the ZIP and state code correct. Line those up and your approval rate jumps.
Billing address, field by field (copy your card's registration)
| Field | What to enter | Common mistake |
|---|---|---|
| Address line 1 | The street address on the card's registration | Using your home address → AVS mismatch, declined |
| City | The city on the card's registration | Doesn't match the state / ZIP |
| State | Two-letter code (e.g. OR, DE) | Writing the full name or the wrong state |
| ZIP | 5 digits, matching the card's registration | A random ZIP that fails AVS |
| Country | US | Selecting another country |
| Name | Same as the cardholder | Spelling that differs from the card |