About this plugin
SilverStream Invoicing is a complete self-hosted invoicing and client management solution built for freelancers, consultants, agencies and small businesses worldwide.
Create beautiful PDF invoices and quotes, manage unlimited clients, track expenses, add follow-up notes and send invoices by email — all directly from your WordPress dashboard. No monthly fees. No third-party SaaS.
Your data stays 100% on your own server.
Why SilverStream Invoicing?
- No subscriptions — free forever for core features, no credit card required
- Self-hosted — all your client and invoice data stays on your own server
- Professional PDFs — clean, branded invoices and quotes your clients will love
- Multi-currency — set any currency symbol to match your location
- Tax / VAT support — configurable rate, enable or disable per document
- Unlimited clients — no restrictions on the number of clients you can add
- Send by email — send invoices and quotes directly to clients from within WordPress
Free Features
- Unlimited clients
- Unlimited invoices and quotes
- Professional PDF invoices and quotes (browser print-to-PDF)
- Tax / VAT support with configurable rate
- Expense tracking with categories and suppliers
- Client notes and follow-up reminders
- Financial dashboard overview
- Email sending with SMTP configuration
- Quote acceptance — clients accept or request changes via a secure link
Pro & Business Plans
Upgrade to unlock Year-End financial summaries, custom branding, recurring invoices, payments tracking, CRM Pipeline, Client Portal and more. All plans are once-off payments with no subscriptions or renewal fees.
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Perfect For
- Freelancers and independent contractors
- Web designers and developers
- Graphic designers and creative agencies
- IT consultants and software developers
- Small businesses and sole proprietors
- Agencies managing multiple clients
Security
- All inputs sanitised using WordPress sanitization functions
- All outputs escaped using WordPress escaping functions
- All database queries use prepared statements via $wpdb->prepare()
- All forms protected with WordPress nonces
- Capability checks on all admin actions
- Log files stored in the uploads directory with.htaccess protection
- No data sent to external servers except licence key validation
External Services
SilverStream Invoicing connects to the SilverStream Digital licence server solely to validate Pro and Business licence keys. This only occurs when a user manually enters a licence key on the Licence page in Settings. No client data, invoice data or personal information is ever transmitted.
Only the licence key and the site domain name are sent for validation purposes.
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