Professional Invoicing
Create, send, and get paid faster
Create professional invoices in seconds. Auto-calculate line items and VAT. Track draft, sent, overdue, and paid status. Automatically chase late payers with escalating reminders at 7, 14, and 30 days.
Free during Early Access - No credit card required
Capabilities
Professional invoice templates with your company details
Auto-calculate line item totals and VAT at standard or reduced rates
Track invoice lifecycle: draft, sent, overdue, and paid
Automatic payment chasing with escalating reminders at 7, 14, and 30 days
PDF generation for email sending or download
Chase history timeline showing every reminder sent
Toggle auto-chase on or off per invoice at any time
Automatic matching to bank transactions when payment arrives
How It Works
Create your invoice
Add line items, quantities, and rates. VAT is calculated automatically. Your company details and payment terms are pre-filled.
Send to your client
Generate a PDF and send it by email directly from AccountsOS, or download to send yourself.
Auto-chase overdue payments
If payment is late, AccountsOS sends escalating reminders — friendly at 7 days, firm at 14, and final notice at 30 days.
Match payment to invoice
When payment arrives in your bank, AccountsOS matches it to the invoice and marks it paid. Your books stay reconciled.
Use Cases
Freelance project billing
Invoice clients for completed work with itemized line items. Auto-chase ensures you get paid on time without awkward follow-up emails.
Recurring retainer clients
Create and send monthly retainer invoices quickly. Track which clients have paid and which need a nudge.
Mixed VAT rate invoicing
Invoice for services at 20% and zero-rated items on the same invoice. VAT is calculated correctly per line item.
Late payment management
The 3-tier auto-chase system handles awkward payment conversations for you. View the full chase history to see what has been sent.
Benefits
Get paid faster with professional invoices and automatic reminders
Never forget to chase a late payment again
Save hours per month on invoicing admin
Maintain positive client relationships with polite, graduated reminders
Always know your outstanding receivables at a glance
VAT-compliant invoices that satisfy HMRC requirements
Frequently Asked Questions
How does automatic invoice chasing work?
When an invoice passes its due date, AccountsOS sends escalating email reminders: a friendly reminder at 7 days overdue, a firmer follow-up at 14 days, and a final notice at 30 days. You can toggle chasing on or off for any invoice at any time.
Can I customise the invoice template?
Your company name, address, VAT number, and payment details are automatically included. Invoices are professionally formatted with your branding.
How is VAT handled on invoices?
Each line item can have a different VAT rate — standard (20%), reduced (5%), or zero-rated. VAT is calculated automatically and shown as a separate line, meeting HMRC invoicing requirements.
Can I send invoices in different currencies?
Yes. Create invoices in any supported currency. The GBP equivalent is tracked for your UK accounts, and exchange rates are applied at the transaction date.
What happens when my client pays?
When the payment appears in your bank transactions, AccountsOS suggests a match to the invoice. Confirm with one click and both the invoice and your bank reconciliation are updated.
Can I see all outstanding invoices in one place?
Yes. The invoicing dashboard shows all invoices by status — draft, sent, overdue, and paid — with total outstanding amounts and ageing breakdowns.
Ready to try Professional Invoicing?
Get started with AI-powered accounting for your UK limited company.
Get Started FreeFree during Early Access - No credit card - Cancel anytime