SilverStream Invoicing

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

Invoices & Quotes
Create professional invoices and quotes with unlimited line items, tax/VAT support, discounts and your business details. Download as PDF in one click using your browser’s built-in print-to-PDF — no external library required.

Client Management
Manage unlimited clients with full contact details including company name, VAT number, address and email. View a complete history of every invoice and quote per client.

Expense Tracking
Log business expenses with categories, suppliers and amounts. Keep all your financials organised in one place alongside your invoices.

Notes & Follow-ups
Add notes per client with follow-up date reminders so nothing falls through the cracks. Stay on top of every client relationship.

Email Sending
Send invoices and quotes directly to your client’s email address from within WordPress. Configure your own SMTP settings for reliable email delivery using Gmail, Outlook or your hosting mail server.

Financial Dashboard
A clear overview of total quotes, total invoices, revenue collected and outstanding amounts — visible every time you log in.

Quote Acceptance
Clients can accept or request changes on quotes via a unique secure link — no login or WordPress account required on their side.

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.

View pricing and plans at silverstreamdigital.co.za

Perfect For

• Freelancers and independent contractors
• Web designers and developers
• Graphic designers and creative agencies
• IT consultants and software developers
• Accountants and bookkeepers
• 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.

Licence server: https://silverstreamdigital.co.za
Terms and Conditions: https://silverstreamdigital.co.za/terms-conditions/
Privacy Policy: https://silverstreamdigital.co.za/privacy-policy/