Karr: accounting, invoicing and tax compliance for small and medium businesses

Karr is accounting, invoicing and tax-compliance software for small and medium businesses and the accountants who work with them. In India it does 132 things in 13 chapters, from "Tell Karr what happened" to "Moving in and setting up", and prepares and files the returns. In 29 more countries it keeps the books and puts each country's own tax on every bill.

Sending email from your own address

Karr sends the paperwork your business already sends: invoices to customers, payment reminders when a bill goes overdue, and compliance notices to your accountant. Those should come from you, not from a software company's address — so Karr lets you connect your own mailbox and sends through it.

If you use Gmail or Google Workspace, you can connect it in one click. Karr asks Google for permission to send mail on your behalf, and for your email address and name so it can show you which mailbox is connected.

Karr cannot read your email. It cannot open, search, download, forward, change or delete any message — the permission it holds allows sending only, and no other access is requested or possible. Your messages are never stored on Karr's servers. You can disconnect at any time from Settings → Email, which deletes the stored credential immediately. Mail providers outside Google are supported through standard SMTP, so connecting Google is always optional.

The full site needs JavaScript enabled.