Can I use a business debit card without opening a traditional bank account?

Most fintech business debit cards still require full KYC. You'll submit beneficial ownership info, EIN, and often personal ID. The card might have the LLC name but the underlying account records exist. Privacy is limited.

What do you mean by "traditional bank account"? Even a fintech debit card is a deposit account at a partner bank. There's no true card-only product that avoids an account relationship. If you're trying to avoid public records, the card itself isn't the issue. It's the KYC and the linked entity registration.

I looked into this last year. Options like Mercury and Brex still require standard formation docs and ID. The card says the LLC name but the account is in the LLC's name too. You're not getting around beneficial ownership reporting.

Not to hijack but does anyone know if a registered agent address can be used as the business address for the fintech signup? Or do they flag virtual addresses?

No and no. Every legitimate card issuer is gonna run KYC. If they don't, you don't want to be anywhere near them. The privacy you can get is keeping your personal address off the Secretary of State filing via a registered agent and using a virtual business address. The bank will still know who you are. That's just how it works.

So there is no true anonymous business debit card. That's the short answer.

So if I understand right, the card product itself doesn't add public exposure, but the account and KYC do create a record with the bank. What about us ing a DBA or a holding company company layered above the operating LLC? Does that change what the bank sees or just what the state sees?

Layering doesn't hide beneficial ownership from the bank. You'll still list the natural persons who own 25% or more. It might keep your name off some state records but the bank's file will have it. And honestly, stacking entities for privacy can trigger extra scrutiny.

Also worth mentioning mentioning: the Corporate Transparency Act means most small LLCs are reporting beneficial owners to FinCEN now anyway. So the "anonymous LLC" idea is already narrower than it used to be. A debit card Without an account doesn't exist, and even if it did, it wouldn't solve the reporting issue.

If privacy is the goal, focus on what's publicly searchable. The card and the bank account are not public records. Your SoS filing is. Use a registered agent and a virtual address, keep your home address out of the filing, and accept that the bank will know who you are. That's the realistic tradeoff.