Prepaid SIM Card in Germany for Students: ID Check, Prices, Payments (2026)

A prepaid SIM card Germany students need in week one is the key to everything else: bank apps, university two-factor login, and loyalty apps all want a German number. The law requires an ID check, prices are low, and the main trap is the "per 4 weeks" billing.

This is the detailed article behind where to buy what in Germany. The bank account side is in Girokonto after Anmeldung.

TL;DR

Prepaid SIM Ausweis: is ID required?

Prepaid SIM Ausweis (ID) checks are mandatory. Under §172 of the Telecommunications Act (TKG), a provider must check your name and date of birth against an ID document before activating a prepaid SIM. Accepted documents include a passport, a foreign passport recognised under German immigration law, a residence permit, and other photo ID. Other methods such as video ident are allowed if they meet Federal Network Agency (Bundesnetzagentur) requirements.

Source: §172 TKG.

The law accepts your passport. Each provider's online check is a separate matter: some video-ident systems only accept certain countries' documents. If the app rejects your passport, activate in a shop instead.

Prepaid SIM Germany passport verification by provider

Prepaid SIM Germany passport verification methods differ:

How to activate a prepaid SIM

1. Buy a starter pack (in a discounter, online, or as an eSIM where offered).
2. Install the provider's activation app, or open its website.
3. Choose video ident or POSTIDENT. Have your passport and good light ready.
4. Show the passport's photo page and security features on camera, then your face.
5. Enter an address. A temporary address works for the SIM; Anmeldung is a separate step (Anmeldung guide).
6. Top up credit and book a tariff. The SIM is live once the check passes.

Aldi Talk vs Lidl Connect vs congstar

Aldi Talk vs Lidl Connect vs congstar (plus fraenk) is the usual student shortlist. Prices on 4 October 2026:

ALDI TALK's doubled data was a promotion when checked. Confirm current data volumes on each provider's page before buying.

Per 4 weeks is not monthly

A year has 13 four-week periods. A €9.99 per-4-weeks tariff costs about €130 a year, not €120. Compare yearly totals when one provider bills monthly and another every four weeks.

Young contracts

If you prefer a contract, Telekom, Vodafone, and O2 sell Young tariffs for under-28s with large discounts. O2 Young started at €14.99 for 30 GB+ when checked. Details: student discounts.

Cancel mobile contract Germany 24 months

To cancel mobile contract Germany 24 months after signing, know two rules from §56 TKG:

1. The initial term can be at most 24 months, and providers must also offer a contract of at most 12 months.
2. After a contract renews automatically, you can cancel at any time with one month's notice.

The Federal Network Agency confirms this also applies to contracts signed before 1 December 2021, with no cancellation costs except paying for a device you keep (Bundesnetzagentur). Websites must offer a "Verträge hier kündigen" button for contracts that can be signed online (BGB §312k).

Leaving Germany? Prepaid has no contract to cancel. A contract needs notice even if you move abroad.

Girocard vs Visa Debit Germany

Girocard vs Visa Debit Germany matters at the till. The Girocard (formerly EC card) is the most used card system, with about 1.2 million terminals and 7.9 billion transactions in 2024. Many German bank cards are co-badged: Girocard plus Visa Debit or Debit Mastercard on one card.

Cash was still used in a majority of everyday transactions in the Bundesbank's 2021 survey. Carry a small amount. Bank options: Girokonto after Anmeldung.

Klarna Rechnung SCHUFA students

Klarna Rechnung SCHUFA students risk is real when a bill is ignored. Pay-later ("Rechnung") at Klarna gives 30 days to pay. After about three reminders, Klarna usually hands the debt to a collection agency (Inkasso), which adds costs. Its instalment option has been quoted at 13.27% interest.

When can it reach SCHUFA? An unpaid bill can be reported only if all of these apply:

• At least two written reminders were sent
• At least four weeks passed since the first reminder
• You were warned about the report in advance
• You did not dispute the debt

Negative entries are stored for up to three years, or deleted after 18 months if paid and nothing new appears. A new arrival has no SCHUFA file at all, which landlords read as "no history", not a bad score (WG contract and SCHUFA).

Practical rule: pay pay-later bills by direct debit or set a reminder the day you order.

Common mistakes

• Buying a SIM at the airport without checking whether the activation method accepts your passport
• Comparing a per-4-weeks price with a monthly price
• Signing a 24-month contract for a one-year exchange
• Ignoring a Klarna reminder because the email looked like spam
• Leaving Germany with an active contract and no notice given
• Carrying no cash at all

Official sources

• §172 TKG, ID check for prepaid SIMs
• §56 TKG, contract term and cancellation
• Bundesnetzagentur, contract rules
• BGB §312k, cancellation button

Related: Where to buy what · Girokonto · Student discounts · First 30 days · Consumer rights