Quantum Economics: Payment/Receipts in Invoices – a Guide for Self-Eemployed

This video continues the previous guides on creating and digitalising invoices by showing how to manage payments within the Quantum Economics system, ensuring financial records remain accurate and up to date. It demonstrates marking issued invoices as collected and received invoices as paid, including entering payment dates, client or supplier references, and bank details. By following these steps, businesses can manage their incoming and outgoing payments more easily, reduce errors, and keep their records clear and compliant.

2 Tax deadline reminders
Important deadline

Have You Prepared Your Personal Tax Declarations?

The Income Tax and Wealth Tax Declaration campaign is now underway. All tax residents of Spain are reminded that Income and Wealth Tax Declarations must be filed no later than 30 June.

In addition, Great Fortunes Tax Declarations must be submitted by 31 July.

Please contact us if you would like assistance, as we can prepare and file the declarations on your behalf.

Important deadline

Have You Prepared Your Corporation Tax Declaration?

Companies in Spain are reminded that Corporation Tax Declarations must be filed by 25 July.

Submitting the declaration within the official deadline is important to remain compliant with Spanish tax regulations.

We are available to assist with the preparation, review, and filing of your Corporation Tax Declaration.

All reminders have been dismissed.