Kaltmiete Portal - Your direct link to clarity in billing.
Access your bills anytime, anywhere.
Your benefits at a glance:
Instant bill and payment overview
Electronic PDF billing statements
SEPA direct debit ready
24/7 access to your account
Streamlined Residential Billing with the Kaltmiete Portal
The Kaltmiete Portal offers a direct and straightforward solution to managing residential bills, bringing convenience and clarity directly to residents' fingertips.
By providing instant access to billing statements and annual invoices electronically, it reduces the hassle associated with traditional billing methods. Residents gain the ability to review detailed cost breakdowns anytime, promoting transparency and aiding in financial planning. Additionally, the portal's user-friendly design and the ability to manage account details online enhance user engagement and satisfaction, making it an indispensable tool for modern residential management.

Your billing, simplified with the Kaltmiete portal of ista.
Our Kaltmiete Portal transforms how residents interact with their bills. Offering electronic delivery of detailed billing statements and the ability to handle billing inquiries online, the portal ensures that all your billing needs are met efficiently and securely. From accessing real-time account updates to managing transactions, the Kaltmiete Portal provides a comprehensive billing management system designed to ease the life of every resident.
Instant document access
Real-time financial transparency
Eco-friendly billing

Seamlessly manage your bills – Discover direct billing today!
Ensure accuracy and convenience in every transaction with our integrated billing solutions.
Facts & figures
6,300 employees
20 countries
3.7 mil. t CO₂ emissions avoided
43 mil. radio devices
14 mil. utilisation units
How does it work?
The Kaltmiete Portal leverages cutting-edge web technologies to provide a seamless user experience in managing utility bills and payments. At its core, the portal hosts a secure, scalable platform that integrates with ista’s billing systems, allowing for the instantaneous electronic delivery of documents such as monthly and annual statements as PDFs. Users can access detailed accounts of their energy and water usage, view current and past bills, and manage their account settings, including issuing direct debit mandates directly through the portal. Updates to the account are reflected in real time, ensuring that users have access to the most current information at all times, thereby enhancing decision-making and financial planning.
Technical features
- Electronic PDFs for annual and monthly bills
- Daily updated customer account insights
- Overview of credit balances and payments
- Notifies changes via direct billing portal
- Enables direct SEPA debit mandates
Frequently asked questions
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