If you're running a business from home, you've probably heard that you need a "static IP address." But is that actually true? For most home businesses, a dynamic IP works perfectly fine. For others, a static IP is essential. Here's how to decide.
First, check what type of IP you currently have: visit CheckWhatIsMyIP.com, note your IP address, then restart your router and check again. If the IP changed, you have a dynamic IP. If it stayed the same, you likely have a static or semi-static IP.
What's the Difference?
Dynamic IP Address
- Assigned automatically by your ISP via DHCP
- Changes periodically (when your router restarts or your ISP reassigns it)
- Standard for all residential internet plans
- No additional cost
Static IP Address
- Permanently assigned to your connection — never changes
- You request it specifically from your ISP
- Typically costs $5-$15/month extra on residential plans
- Standard on business-tier internet plans
When You NEED a Static IP
- Hosting a web server or email server at home: DNS records need a permanent IP to point to
- Running a VPN server for employees: Remote workers need a consistent IP to connect to
- IP-restricted access: Bank portals, enterprise software, and secure APIs that whitelist specific IPs
- Security camera remote access: Accessing your business security system from outside requires a consistent address
- FTP or file sharing servers: Clients need a permanent address to upload files
When a Dynamic IP is Fine
- Cloud-based business: Using Google Workspace, Microsoft 365, Shopify, or any SaaS tools
- E-commerce: Your website is hosted on a hosting provider, not at your home
- Freelancing and consulting: No server hosting requirements
- General internet use: Email, browsing, video calls, file uploads
Cost Comparison
Here's what the major US ISPs charge for static IPs:
- Xfinity Business: $24.95/month for 1 static IP (requires business plan)
- Spectrum Business: $15/month for 1 static IP
- AT&T Business: $15-$35/month depending on plan
- Verizon Fios Business: Included with business plans (1 static IP)
Alternative: If you just need a consistent IP for access purposes, a VPN with a dedicated IP is often cheaper. NordVPN offers dedicated IP addresses that give you a permanent, unique IP without changing your ISP plan.
Security Considerations
Static IP Risks
- A permanent IP is easier to target with persistent attacks
- Port scanners can repeatedly probe your network
- Your IP becomes a known, trackable identifier
Dynamic IP Advantages
- Changing IPs make it harder for attackers to maintain persistent access
- Provides some natural obscurity
- A compromised IP is automatically replaced over time
How to Set Up a Static IP
- Contact your ISP: Call and request a static IP. You'll likely need to upgrade to a business plan or add a static IP addon.
- Configure your router: Your ISP may configure it remotely, or you'll need to enter the static IP, subnet mask, and gateway in your router settings.
- Verify: Visit CheckWhatIsMyIP.com to confirm your new static IP is active. Restart your router and check again — the IP should remain the same.
- Secure it: Set up a firewall, close unnecessary ports (check with our Port Checker), and consider a VPN for added security.