We recently communicated that the e-invoicing mandate was delayed in Slovakia. However, that has not prevented the Slovakian Tax Authorities from establishing a framework to ensure the proposed upcoming e-invoicing roll-out is smooth, efficient and automated, resulting in a more user-friendly and less cumbersome tax solution for taxpayers. To this effect, the Slovakian authorities have initiated a public testing phase for the proposed e-invoicing solution. Entities and individuals subject to the testing phase will work with an online application or integration through OpenAPI set up by the tax authority. It is hoped that the public interaction with the e-invoicing model and its systems will provide valuable insights and underline any necessary required enhancements before the roll-out of the mandate. It also serves to underscore the growing tendency across Europe to involve the general public as an integral part of e-invoicing development process.