Same because it is real
A home-based business may truthfully use the home as the business location if the form, privacy choice, and recipient rules allow it.
Plain address rule
Your registered office can be your real business address.
For many small businesses, especially home-based businesses, the same real address may be the registered office, principal office, mailing address, and business location. That is normal when it is true.
Do not overcomplicate the easy case
If a person runs the business from home, or from a real office they actually use, the same address can naturally appear in several places.
The phrase "may be the same" is not a warning by itself. It means the law allows overlap. The question is whether the overlap matches reality and whether the recipient accepts that address for that role.
Same because a provider filled every blank
This is the risky case. A registered-agent or mailbox address may be valid for one role while still being wrong for principal office, bank/KYC, licensing, or customer-facing use.
Different because the role is different
A business can have a registered agent in one place, mail sent somewhere else, a home office, and a separate address a bank needs to verify.
The better question
Do not ask whether two address fields are allowed to match. Often they are.
Ask why they match.
Is this where the business actually operates?
Is this only where legal notices are received?
Is this only a mail-receiving address?
Is this a provider address copied into every field?
Will the bank, platform, agency, or customer accept it?
Simple rule
If the address is the real business location, treat it like the real business location.
If the address is a registered-agent office, mailbox, virtual office, or provider location, treat it as that role first. Then check whether it also satisfies the other role.
Source posture
State sources often say a registered office may be the same as a place of business. That should be read plainly. It allows the ordinary case where the address is real. It does not turn a provider address into an operating office by magic.
The source-backed state matrix is available at /data/state-address-rules-matrix.json.