Can You Put PO Box in Address Line 2?
How to correctly combine physical street addresses and PO Boxes on checkout forms.
Yes, you can put a PO Box in Address Line 2 if Address Line 1 contains your physical street address. However, if your order is being shipped via private couriers like FedEx or UPS, they cannot deliver to PO Boxes. Only national post services (like USPS, Royal Mail, Australia Post) deliver to PO Boxes.
✓ Key Rules at a Glance
- Put PO Box in Line 1 if it is your primary and only delivery address.
- Put physical street address in Line 1 and PO Box in Line 2 if providing both.
- Private couriers (FedEx, UPS, DHL) CANNOT deliver to PO Boxes.
- National post services (USPS, Royal Mail) process PO Boxes without issue.
Online Store Logistics
100 Fulfillment Way
Seattle, WA 98101
Destination Address
Michael Chang
500 Commerce Street
PO Box 884 PO Box in Address Line 2
Dallas, TX 75201
UNITED STATES
When to Place PO Box in Line 1 vs Line 2
Placement depends on whether you have a physical street address attached to your delivery destination:
- PO Box Only: Enter
PO Box 123directly into Address Line 1 and leave Line 2 blank. - Dual Address (Street + PO Box): Put your physical street address (e.g.
500 Commerce Street) in Address Line 1 and yourPO Box 884in Address Line 2.
Courier Restrictions: FedEx, UPS & DHL Warning
⚠️ Important Courier Rule
Private commercial couriers (FedEx, UPS, DHL) are legally barred from accessing postal office boxes owned by national post services. If an online order ships via FedEx or UPS and contains a PO Box in Line 1 or Line 2, the parcel will be returned to sender or held at a sorting hub.
If you are unsure which carrier the merchant will use, always provide a physical street address.
❓ Frequently Asked Questions
Which address will USPS deliver to if I write both street address and PO Box?
USPS delivery rule: mail is delivered to the address listed on the line directly above the City, State, and ZIP code line.
What if a seller uses UPS but I only have a PO Box?
You can sign up for USPS Street Addressing (PBSA) or use a UPS Store personal mailbox street address.
Check Country-Specific Address Rules
Select a country to view official postal line layouts, required fields, and postcode formats:
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