If the owner details or vehicle details of your car, motorcycle, or trailer change, you must notify your local vehicle registration authority.

Owner details change when you change your name, for example due to marriage. You must also notify the registration authority of any change of address when you move house.

Technical data changes, for example, in the event of: 

• Changes to the vehicle class
• Changes in engine displacement, rated power, fuel type, or energy source
• Increase in the maximum speed determined by the type of construction
• Reduction in the maximum design speed if this is relevant to the driver's license or registration
• Changes to the permissible axle loads, total mass, support load, or towing capacity
• Increase in vehicle dimensions, except for passenger cars and motorcycles
• Change in the number of seats or standing room in buses
• Changes to exhaust or noise levels, if these affect motor vehicle tax or traffic restrictions
• Changes to the vehicle 

Depending on the change, the registration authority will issue you with 

• new registration documents and 
• new stamp stickers for your vehicle if the license plate number changes.

You can visit your registration authority in person or appoint a representative.
 

The owner data is also entered in the registration certificate Part II. Therefore, you must have any name changes entered there, for example. Furthermore, you are obliged to report any technical changes to the vehicle that alter the EC vehicle class, displacement, rated power, fuel type, or energy source.

When de-registering, re-registering, or changing the type of license plate, the official license plates must be invalidated by the registration office by removing the official seal stickers.

Note:
When registering a vehicle that is still registered abroad, the foreign license plates must be presented.
In the event of theft or loss of a license plate, any remaining license plate must be presented.

Please note:
A vehicle with de-stamped license plates may only be operated on public roads in exceptional cases in connection with registration.

If an inspection or seal sticker becomes unusable or is lost (e.g., at a car wash), you should have it replaced immediately or have a new sticker affixed to avoid unnecessary trouble.

• Your owner details or vehicle details have changed. 
• You must not have any outstanding fees or expenses from previous registration procedures exceeding EUR 30.
• You must not have any vehicle tax debts of EUR 5 or more. This also includes late payment penalties, interest, and late fees.

In the event of technical modifications, the necessary expert reports must be submitted.

Once the changes to your personal data or the technical specifications of the vehicle have been made, submit the data to be changed together with the necessary documents to the relevant authority. There, you will be issued with a new registration certificate, Part II, if necessary.

• objection

Any changes to vehicle data or owner data must be reported to the relevant registration authority without delay.

The locally responsible registration authority in the district or independent city (registration office). For natural persons, jurisdiction is based on the place of residence of the vehicle owner (in the case of multiple residences, the location of the main residence) and, for legal entities, tradespeople, and self-employed persons with a fixed place of business, on the registered office or location of the branch involved.

• If available: completed application forms
• Valid identification document, for example, an identity card or passport belonging to the vehicle owner; if presenting a passport, also a current registration certificate 
• If applicable, valid electronic insurance confirmation (eVB)
• Registration certificate part I (vehicle registration document)
• Valid general inspection and, if applicable, a safety inspection 
• If applicable, bank account details or SEPA mandate for the collection of the vehicle tax from the owner

For trailers, also:

• If available: trailer list

Depending on the change to the vehicle or owner data, you may also need to submit additional documents:

• Moving to another registration district – vehicle owner remains the same:
  • For a new license plate: 
    • Registration certificate part II (vehicle registration document)
    • Old license plates for devaluing the stamp stickers
    • If already available: new pre-reserved (desired) license plate
    • If already available: new license plates Vehicle license plate
  • If retaining the previous license plate:
    • Registration certificate part II (vehicle title)
    • Notification that the previous license plate is to be retained
• Relocation to another registration district – change of vehicle owner:
  • For new license plates: 
    • Registration certificate part II (vehicle title)
    • Old license plates for devaluing the stamp stickers
    • if already available: new (personalized) license plate reserved in advance
    • If already available: new license plates Vehicle license plate
  • If retaining the previous license plate:
    • Registration certificate part II (vehicle registration document)
    • Notification that the previous license plate is to be retained
• Relocation within the registration district – vehicle owner remains the same:
  • Registration certificate part II (vehicle registration document)
• Moving within the registration district – vehicle owner changes:
  • With new license plate: 
    • Registration certificate part II (vehicle registration document)
    • Old license plates for devaluing the stamp stickers
    • if already available: new pre-reserved (desired) license plate
    • If already available: new license plates
  • If retaining the previous license plate:
    • Registration certificate part II (vehicle title)
    • Notification that the previous license plate is to be retained

If the following vehicle data changes: Vehicle class according to Appendix XXIX of the Road Traffic Licensing Regulations, change in displacement, rated power, fuel type, or energy source:

• Registration certificate part II (vehicle title)

If represented by a third party:

• Written power of attorney and original identity document of the owner; the authorized representative must be able to identify themselves with their valid identity card or passport.

Depending on the individual case, the vehicle registration authority may require further or other evidence from you.

• For companies, additionally a business registration or extract from the commercial register,

• identity card or passport with registration certificate from the residents' registration office or (for foreign citizens) foreign identity card and registration certificate from the residents' registration office.

Additionally, in the case of technical modifications:

• If necessary, an expert opinion from an officially recognized expert for motor vehicle traffic or a technical service, or an acceptance certificate from a test engineer from an officially recognized monitoring organization.

• If applicable, operating license from the parts manufacturer,

• Proof of the general inspection,

• if the vehicle type is changed, a new electronic insurance confirmation.

• Administrative fee: EUR 27.10 Change
  of address after moving from another registration district and allocation of a new license plate – with and without change of owner
• Administrative fee: EUR 12.10 Change
  of address after moving from another registration district and allocation of a new license plate – with and without change of owner via an i-KFZ portal
• Administrative fee: EUR 24.
  20 Transfer within the same registration district while retaining the previous license plate in the event of a change of owner
• Administrative fee: EUR 9.90 Change
  of address after moving from another registration district while retaining the previous license plate – with and without a change of owner via an i-KFZ portal
• Administrative fee: EUR 26.
  20 Transfer within the same registration district and allocation of a new license plate when changing owners
• Administrative fee: EUR 10.
  40 Transfer within the same registration district while retaining the previous license plate when changing owners via an i-KFZ portal
• Administrative fee: EUR 26.30 Change
  of address after moving from another registration district while retaining the previous license plate with and without a change of owner
• Administrative fee: EUR 12.
  40 Transfer within the same registration district and allocation of a new license plate when changing owners via an i-KFZ portal. (This fee increases by EUR 0.30 for a sticker holder for inspection stickers.)

Cash / EC

• Written form required: Yes

• Personal appearance required: No