Invoicing for Software and Web Development

Invoicing software for software companies and web developers: invoices in euros and in English, quotes, recurring invoices, card payments, and automation with Zapier.
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Invoicing for software and web projects. From the quote to automation.
Invoices in Euros and in English: Selectthe language and currency, display the amounts in leva on invoices in euros, and add English information for customers outside Bulgaria.
Project Quotes: Senda quote via email. The client accepts or declines it via a link, and you can convert an accepted quote into an invoice.
Recurring Invoices: Schedulerecurring invoices—such as for monthly maintenance—to be sent automatically via email.
Card Payment: The customerpays online with a debit or credit card via Stripe, and the payment is confirmed automatically.
Zapier and Additional Fields: ConnectInverso to other apps via Zapier and add additional fields to the customer record.
Projects and Tasks: Groupquotes and invoices by project and track the project's tasks: planned, in progress, completed, or postponed.
Recurring invoices and automation for software and web projects.
Recurring Invoices
You specify the frequency (daily, weekly, monthly), start date, send time, and duration, or set it to have no end date. For each series, you can see the next and last send dates, as well as the number of invoices generated.
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Zapier and Additional Fields
From Settings, under the "Integrations" tab, connect Inverso to Zapier to view a list of connected apps. The connection is terminated upon confirmation. The additional customer fields (key and value) are intended to link to the customer's record in an external system, such as a CRM.
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Get started for free

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Track your company's cash flow all in one place. Easily track income and expenses with automated reports from Inverso.
Frequently asked questions
Can I issue invoices in English and in euros?
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Yes. Select Bulgarian or English, and for customers outside Bulgaria, include the English fields. For invoices in euros, you can also display the amounts in leva.
How do I issue recurring maintenance invoices?
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Schedule the invoice and set a recurrence: daily, weekly, or monthly. Set a start date, send time, and duration, or choose "no end date." You can enable automatic email delivery.
How do I receive a payment by card?
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You can enable your Stripe account in Settings. On the invoice, the customer pays online with a credit or debit card, and the payment is confirmed automatically. Card fees are determined by Stripe.
How do I connect Inverso to Zapier?
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Zapier connects Inverso to over 7,000 apps for invoicing automation. You can set up the connection in Settings, under the "Integrations" tab, where you can also view the connected apps.
How do I track project tasks?
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For each project, you add tasks with a status (planned, in progress, completed, or postponed), a description, and a due date. The project dashboard displays the tasks by status.
How do I verify a customer's VAT number?
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With a single click, Inverso checks the number in the European VAT Register (VIES) and suggests a company name, EIK, and address for auto-fill.