German toll refund: the three-year window and the BALM application process

An overpaid German toll isn't refunded automatically. It requires an application, and it has to be filed in time.

The deadline

The refund claim expires at the end of the third calendar year after it arises. When the toll is collected automatically through the operator, the claim arises at the moment it's collected.

In practice this means a rolling three-year window: every new year, the oldest year drops out of it irrecoverably. An audit done today covers more than an audit done twelve months from now — by exactly the scope lost in that time.

The process

The application is filed electronically on the Federal Office for Logistics and Mobility's (BALM) refund portal. A €20 handling fee is charged per registration plate or per entry receipt, and it's deducted from the refunded amount.

That fee is a practical threshold. If one vehicle's overpayment is a few dozen euros, the application isn't economically worth filing. That's why an audit only makes sense above a certain fleet size, or when the overpayment is systemic — for example, when every vehicle is billed at too high a CO2 class.

Why most applications don't reach a result

In an earlier refund case arising from a European Court of Justice ruling on excessive rates, the overpayment ran to about 4%. For larger forwarders that added up to six-figure, and in some cases seven-figure, amounts.

The outcome: about 21% of companies filed claims, and only about 6% actually received a refund. The gap wasn't a lack of money — it was process. Some of the claims filed weren't legally valid, or didn't stop the limitation period in time.

That's the best evidence available that the main obstacle isn't the right to a refund — it's the paperwork.

Who files the application

This is where a clear line needs to be drawn. Filing an application on someone else's behalf on a commercial basis is a regulated legal activity in Germany. So the audit and the application filing are two different things: the audit establishes where and how much was overpaid and prepares the substantiation, and the taxpayer themselves files the application on the portal.

In practice this isn't an obstacle — the portal is electronic, and the substantiation is exactly the part that's usually missing.

What you need

Monthly operator invoices for the period under review, vehicle registration certificates, and — if the CO2 class is being checked — certificates of conformity or CIF data.

Without the latter, a CO2 class check can't be done. A CoC can be ordered from the manufacturer, but it takes time, so it's worth starting there.