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Issue invoices, record payments as they come in and see at a glance what is due, overdue and paid. Reminders go out by email, and Duke drafts the follow-ups you'd rather not write.
Duke in Invoicing
He knows what's overdue and what falls due this week, prepares the reminders and records the payments you tell him about. Anything that touches money waits for your approval, and never happens on WhatsApp by itself.
Who decides
Overdue invoices, what falls due in the next 7 days and what you've collected against last month, on Home with the money at stake.
Today · Harbour Digital
Say who paid what and how. Duke shows what will still be owed, and records it when you approve.
Ask for a payment plan and Duke creates one invoice per instalment, due every few months from the date you choose.
An AI agent can find unpaid invoices on a schedule and send your approved reminder template on its own, up to a limit per run. A reminder Duke words himself waits for you.
Agent · Chase overdue invoices
Live demoHarbour Digital's invoices: €59,962.50 owed, €24,907.50 of it overdue
Invoices
Invoices are numbered INV-0001 onwards. Once issued, each one shows where it stands from its dates and payments, so the Due and Overdue tabs are always right. Every invoice also sits on the customer's own page.
Pulse Fitness Studio, our gym demo: 11 invoices overdue
Payments
Record a payment by cash, card, bank transfer, UPI, cheque or another method, and a receipt is numbered RCPT-0001 onwards. Customers can pay in parts. A payment can never be more than what's owed, and paying the balance marks the invoice paid.
With Duke: refunds are proposed for a person to approve, and never happen on WhatsApp.
One overdue Harbour Digital invoice, with Duke's suggestions beside it
Payment plans
Turn one amount into a series of invoices: equal parts every month or every few months, or named parts like Booking and Agreement. Each instalment is its own invoice, so you see exactly which ones are paid.
Payment plan · Website rebuild, €18,000
Reminders
Ready-made automations send a payment reminder by email before an invoice is due, follow up overdue ones with an email and a call task for your team, and thank people when they pay in full. Change the timing or the wording to suit you.
With Duke: describe a new reminder in a sentence and he builds the automation for your approval.
Invoice automations
Try these in a live demo, signed in as the owner.
Works with
Questions
SmartDuke includes invoicing in every plan from ₹1,999 or $49 a month for the whole business, not per user, with every other business app too, including the customer pages every invoice sits on. India prices are before 18% GST, and yearly billing gives two months free.
Yes. SmartDuke turns one amount into a series of invoices: equal parts every month or every few months, or named parts like Booking and Agreement. Each instalment is its own invoice, so you see exactly which ones are paid. You can also ask Duke for a payment plan.
Yes. In SmartDuke reminders go out by email, and an AI agent can find unpaid invoices on a schedule and send your approved reminder template on its own, up to a limit per run. A reminder that Duke words himself waits for your approval before it's sent.
Yes. SmartDuke records payments as they come in, including part payments, and each invoice shows whether it is due, overdue, part paid or paid from its dates and payments. Tell Duke who paid what and how, and he shows what will still be owed before recording it.
No. SmartDuke is a business app for customers, bookings, sales and invoices to your customers, and keeps no ledger. It shows what you've billed, collected and are still owed, and you can export all your data any time to share with your accountant.
Harbour Digital's demo has retainers, deposits and a few late payers. Open it, or tell us how you invoice now.
Talk to us
A demo business with months of sample data. Pick a role on the sign-in page, no sign-up needed.
Duke, the AI teammate, works inside every app.