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Clarth

Your First Invoice

Step-by-step guide to creating and sending your first invoice in Clarth. Professional templates, online payments, and automatic reminders.

Your First Invoice

This guide walks you through creating and sending your first invoice in Clarth. By the end, you'll have a professional invoice ready to send to your client.


Step 1: Create a New Invoice

  1. Click the + button in the top navigation
  2. Select Invoice
  3. Choose your invoice type:
    • Standard Invoice — One-off billing
    • Recurring Invoice — Repeat billing schedule
    • Credit Note — Adjustments or refunds

Step 2: Add Client Details

Select an Existing Client

  1. Click Client dropdown
  2. Search for your client by name
  3. Select them from the list — their details auto-fill

Add a New Client

  1. Click + New Client
  2. Enter the details:
    • Name — Client or company name
    • Email — For sending the invoice
    • Address — Billing address
    • Payment terms — e.g., 30 days, Due on receipt
  3. Click Save Client

Step 3: Add Line Items

For each product or service:

  1. Click Add Line Item
  2. Fill in:
    • Description — What you're billing for
    • Quantity — Number of units
    • Rate — Price per unit (in £)
    • VAT rate — Select from 0%, 5%, 20%, or Exempt

Examples:

DescriptionQtyRateVAT
Website design1£2,500.0020%
Hosting (annual)1£120.0020%
Consultancy (hours)8£75.0020%

Tip: Save frequently used items to your Products & Services list for quick access next time.


Step 4: Customise Your Invoice

Invoice Details

  • Invoice number — Auto-generated, but editable (e.g., INV-001)
  • Issue date — When the invoice is sent
  • Due date — Payment deadline
  • Purchase order — Client's PO number (optional)

Branding

  1. Click Branding tab
  2. Upload your logo
  3. Choose your brand colour
  4. Select a template layout:
    • Classic — Clean and minimal
    • Modern — Bold headers, colour accents
    • Detailed — Full breakdown with terms

Notes and Terms

  • Customer note — Message to your client (e.g., "Thank you for your business")
  • Terms & conditions — Payment terms, late fees, etc.

Step 5: Preview Your Invoice

Click Preview to see exactly what your client will receive:

  • Check all details are correct
  • Verify the VAT calculation
  • Ensure your branding looks right
  • Review the total amount due

Step 6: Send Your Invoice

Option 1: Send via Email

  1. Click Send Invoice
  2. Review the email template
  3. Add a custom message (optional)
  4. Click Send

Your client receives a professional email with:

  • Invoice PDF attached
  • Link to view online
  • Payment button (if online payments enabled)
  1. Click Share Link
  2. Copy the unique invoice URL
  3. Send via WhatsApp, text, or any channel

Option 3: Download PDF

  1. Click Download
  2. Save the PDF to your device
  3. Send manually via your own email

Step 7: Enable Online Payments

To get paid faster, connect a payment provider:

  1. Go to Settings > Payments
  2. Connect Stripe or PayPal
  3. Your invoices will now include a Pay Now button
  4. Clients can pay by card or PayPal directly from the invoice

Tracking Your Invoice

Once sent, track the invoice status in Invoicing > Invoices:

StatusMeaning
DraftNot yet sent
SentDelivered to client
ViewedClient opened the invoice
PaidPayment received
OverduePast due date
PartialPartial payment received

Automatic Reminders

Clarth sends payment reminders automatically:

  • 3 days before due — Friendly reminder
  • On due date — Payment due today
  • 3 days overdue — First follow-up
  • 7 days overdue — Second follow-up
  • 14 days overdue — Final notice

Customise reminder timing in Settings > Invoice Reminders.


What's Next?

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