Turn every expense into CO₂ insights
Let Declaree help you to stay compliant, save time, and lead on sustainability.
Turn your spend data into carbon data, accurately and automatically.
Automate your CO₂ calculation to meet stringent reporting standards.
Stay compliant before regulations catch up.
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1,7m app users count on us for expense management






Get tools you need for proper emissions reporting.
Turn compliance risk into readiness
Avoid last-minute scrambles when CSRD, ESRS, and other ESG mandates kick in.
Emissions tracking with no extra tools
What if you can gain CO₂ insights for all expenses? Finally, transparency that’s tied directly to your spend data.
Make reporting a breeze
Reporting isn’t a luxury anymore, it’s a requirement. Empower your team with the tools to act.
Sustainability reporting is coming to your desk
Get the emissions data your reports will demand
Sustainability, finance and HR teams are now held accountable for sustainability reporting. Declaree bridges the gap by giving your organisation the tools to collaborate on CSRD, ESRS and ESG reporting.
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Manage all business credit cards online and in real-time
Instantly issue or block business credit cards, manage lost cards, pin codes and more from our online application’s central dashboard. Manage spend and employee cards from one application. And you won't ever have to set foot in a bank.
Automated policy enforcement ensures that expenses are compliant. Combined with a real-time view on expenses, overspending becomes nearly impossible.

Understanding the Dutch Government's CO2 Reporting Requirements
In response to the growing concerns about climate change and the Netherlands' commitment to reducing CO2 emissions, the Dutch government introduced new legislation to monitor and manage the environmental impact of work-related travel. This legislation, known as the "Rapportageverplichting werkgebonden personenmobiliteit (WPM)", mandates organisations with a workforce of 100 or more to provide detailed reports on the CO2 emissions resulting from their employees' business and commuting travels.
Starting from 1 January 2024, if your organisation falls into this category, you'll be required to maintain a record of the CO2 emissions from both business trips and daily commutes of your employees. This data will play a crucial role in the country's efforts to understand and reduce the carbon footprint of work-related travels, which currently account for a significant portion of the total kilometers driven in the Netherlands. The deadline for submitting the required data for the year 2024 is set for 30 June 2025.
This move by the government not only emphasizes the importance of environmental responsibility but also underscores the role employers play in promoting sustainable travel options and practices.
For a comprehensive understanding of these requirements and to ensure your organization remains compliant, the official RVO website offers detailed insights.
Customers using our company cards

"Mobilexpense is a real game-changer for us."
Our Mobilexpense solution is a real game-changer for us. With the convenience of self-issued credit cards for employees and seamless integration of claims data for administration, we not only save valuable time but also have complete control over our expenses. Efficiency and convenience come together in this super service. For our international projects, we now even give temporary cards to freelancers with a set expiry date. For office workers, a virtual card. Super convenient.
"[We] have reduced the time needed to manage expenses by 50%."
The integration of credit cards with the expense application has reduced the amount of lost receipts, accelerated the expense claims and contributes to a general smoothening of our expense management. It was easily deployed and accepted by the people and has reduced the time needed to manage expenses by 50%.

"It's a win-win for efficiency and trust!"
The new Mobilexpense cards provide complete card management for us at Ovotrack, making it super easy to order and distribute new cards, but also to set limits to transactions or monthly spend, and have real-time insight in all transactions. Our employees value their independence and the ability to manage their spending in real-time using either a plastic or virtual card, directly linked to their mobile app. It's a win-win for efficiency and trust!
What's in it for you?
Automated CO₂ calculation
We give you the tools to generate clear, auditable emissions data. We are here to support your CSRD and ESG reporting.
No more blind spots
Track CO₂ down to each invoice and receipt line. This level of granularity gives you higher accuracy and true spend-based emissions visibility.
Proof you can trust
Get transparent, reporting-ready emissions data backed by certified logic. Built on the GHG Protocol and ISO-audited, with full traceability to your expenses.
Time back for your team
We turn your expense data into structured carbon data with no extra tools or manual effort.
Empower your teams
Your teams shouldn’t need ESG expertise to access reporting-ready data. This feature is straightforward and integrates with your expense workflows.
Align with your sustainability goals
By making emissions visible at the transaction level, you can make informed decisions that support your CO₂ reduction targets.
Learn more about carbon tracking and sustainability
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CO₂ Tracking in Europe: Expense Management Guide

CO₂ Tracking: Why Measure and Manage Carbon Emissions?
