Professional Invoicing Built for Modern Businesses
Create professional invoices in seconds, send them to customers by email, and track payments — all integrated with your inventory and sales.
Start Free 14-Day TrialAuto Invoice Numbers
Each invoice gets a unique number automatically, keeping your billing records organised and professional.
Customer Management
Store customer details, email addresses and billing information. Select a saved customer and their details populate automatically.
Auto Stock Deduction
When an invoice is marked as paid, inventory levels are updated automatically — no manual stock adjustments needed.
How Invoicing Works
1. Create an Invoice
Select a customer, add line items with quantities and prices, set a due date and create the invoice.
2. Send to Customer
Email the invoice directly as a professional PDF, or download and share it however you prefer.
3. Mark as Paid
When payment is received, mark the invoice as paid and inventory is automatically deducted.
Everything You Need for Professional Billing
Complete Invoice Lifecycle
Track invoices through Draft, Sent, Paid, Overdue and Cancelled statuses. Know at a glance which invoices are outstanding and which customers need follow-ups.
Professional PDF Invoices
Generate professional A4 PDF invoices with your business details, customer information, itemised line items and totals. Download or email them directly.
Payment Tracking
Record payment dates and methods for every invoice. Track overdue invoices and follow up with customers who have outstanding balances.
Inventory Integration
When invoices are marked as paid, the sold quantities are automatically deducted from your inventory — keeping stock levels accurate without extra work.
Invoice Status Workflow
Overdue invoices are highlighted automatically so you never miss a follow-up.
Invoicing Software for UK Small Businesses
Professional invoicing is essential for any business that wants to get paid on time and maintain accurate financial records. Aphelios Software provides a complete invoicing system that integrates with your inventory, sales and customer management — so everything stays in sync.
Creating an invoice is simple. Select a customer from your saved list (or enter details manually), add the products or services being billed, set quantities and prices, and the total is calculated automatically. Each invoice receives a unique invoice number in sequence, keeping your billing records organised.
Send Invoices by Email
Once an invoice is ready, you can email it directly to your customer as a professional PDF attachment. Include optional notes or comments, and your customer receives a clear, itemised invoice they can pay or file.
Track Payments and Overdue Invoices
When a customer pays, mark the invoice as paid and record the payment date and method. Overdue invoices are flagged automatically, helping you prioritise follow-ups and maintain healthy cash flow.
Automatic Stock Deduction
For product-based businesses, marking an invoice as paid automatically deducts the sold quantities from your inventory. This eliminates the need for separate stock adjustments and ensures your inventory records are always accurate.
Frequently Asked Questions
How are invoice numbers generated?
Invoice numbers are automatically generated in sequence (e.g. INV-0001, INV-0002) so your billing records stay organised without manual entry.
Can I email invoices to customers?
Yes. You can email invoices directly to customers as PDF attachments, including optional comments, from within the platform.
Does marking an invoice as paid update my stock?
Yes. When you mark an invoice as paid, inventory levels are automatically adjusted to reflect the sold quantities.
Can I track overdue invoices?
Yes. Invoices past their due date are automatically flagged as overdue, helping you prioritise payment follow-ups.
What statuses can an invoice have?
Invoices progress through Draft, Sent, Paid, Overdue and Cancelled statuses.
Start Invoicing Like a Pro Today
Join businesses already creating, sending and tracking invoices with ease.
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