Creating reminders made easy
With 21.AbaNinja from Swiss21, you can create professional payment reminder templates and payment reminders online for free. Customise your reminders to match your company’s branding and send them either manually or automatically.
Professional template for payment reminders in your company’s branding
Create professional payment reminders and demands for payment in your company’s branding to ensure a consistent image for your customers. We provide text templates for payment reminders and demands for payment in German, French, English and Italian. You can, of course, customise the texts to suit your needs.

Send reminders and payment notices automatically
You can customise whether and when you send payment reminders, first reminders and second reminders. For each address, you can specify whether reminders should be sent manually or automatically. The invoice overview gives you a clear overview of your outstanding and reminded invoices at all times.

Late payment charges
With the Pro subscription, you can charge additional reminder fees either manually or automatically. Each reminder is generated as a separate document in 21.AbaNinja. To keep payment reconciliation as straightforward as possible, reminders use the same QR reference as the original invoice. Incoming payments from customers are thus automatically allocated to both the reminder and the invoice.

We can do more than just reminders
Forget about high software costs and long lead times for implementation. Our cost-effective ERP software, Swiss21, offers a wide range of programmes that are all interconnected. You’ll be up and running in just five minutes!
FAQ: Reminders
How do I create a reminder?
You can either send a reminder individually via the three-dot menu on the outstanding invoice, or you can set up an automated process. You’ll find step-by-step instructions here.
Can I send reminders automatically?
Yes. You can set individual preferences to determine whether payment reminders and the first and second reminders are sent automatically, and from when. You can also specify for each address whether reminders should be sent manually or automatically.
Can I customise the reminder template?
Yes. With 21.AbaNinja, you can customise our reminder templates to match your company’s branding. You can upload your logo and customise colours, fonts and table layouts to suit your preferences. You can also customise the text.
Can I add late payment charges?
Yes, you can also charge additional late payment fees either manually or automatically. This feature is only available with the Pro subscription. You can find more information about our pricing plans here.
What should a reminder include?
A reminder typically includes the following information:
- Invoice number
- Invoice date
- Outstanding amount
- New payment deadline
- Reminder charges
- Threat of debt collection
In our blog post, you’ll find out how to respond appropriately to late payments, when late payment charges are justified, and how to draft payment reminders professionally. We’ve also provided templates for reminders and payment notices for you to download.
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