In Basel, a loan between individuals is freely agreed in Swiss francs under the Code of Obligations, but the proximity of France and Germany adds questions of currency exchange, tax residence and cross-border debt recovery that must be settled in writing.
A conurbation spanning three countries
Basel-Stadt, a German-speaking canton on the Rhine, forms a tri-national conurbation with Alsace and Baden-Württemberg. Lender and borrower often live in different countries, so the contract should state the applicable law and the chosen court in case of a dispute.
Chemicals and pharma: high salaries, heavy rents
The Basel economy rests largely on pharmaceuticals, with Roche and Novartis, and on Rhine logistics. High salaries sit alongside expensive rents, so a family loan may fund a rental deposit, a house move or the purchase of a vehicle.
Alsace cross-border workers: lend in francs or euros?
A cross-border worker paid in Swiss francs who borrows in euros from a relative bears exchange risk on every repayment. The contract must fix the currency, any rate and the account credited; our page on the peer-to-peer loan for cross-border workers goes further.
Taxation: Basel is not Geneva
French cross-border workers employed in Basel are in principle taxed in France on their salary, whereas Geneva levies tax at source. Interest on a private loan follows the lender's tax residence, and the Basel or French tax authority settles any special cases.
The loan contract under Swiss law
For a loan governed by Swiss law, articles 312 to 318 of the Code of Obligations apply. State identities, the amount in CHF, any interest, due dates and the repayment IBAN. The national framework is summarised in our guide to peer-to-peer credit in Switzerland.
The LCC cap and platform credit
When financing comes from a professional lender subject to the LCC, the Swiss consumer credit act, the effective annual rate cannot exceed 10% for a cash loan in 2026. A private loan between Basel neighbours escapes this cap, but not the ban on usury.
Cashare, Lend and checking intermediaries
Swiss platforms such as Cashare or Lend connect investors with borrowers. Their terms, fees and residence requirements change over time, so someone living in Saint-Louis or Lörrach should check their eligibility before sending any payslips to the platform.
The Betreibungsamt Basel-Stadt when payments stop
If a debtor living in Basel stops paying, the creditor files a debt enforcement request with the Basel-Stadt debt enforcement office. Against a debtor based in France or Germany, action must follow the rules of the country of residence, which makes recovery more expensive.
Debt enforcement register extract: a Basel habit
Before lending a large sum, asking the borrower for a recent extract from the debt enforcement register is common practice in Switzerland, especially when renting a flat. This document reveals debts already pursued and usefully complements the payslips presented by the borrower.
Loan adverts in German and French: be careful
Fraudsters post offers of a Privatkredit or fast loan in cross-border worker groups on social media. The script repeats itself: instant approval, then a file fee demanded. Read our analysis of loan scams on social media before replying to anyone.
Where to get advice in Basel
For a tight budget, debt advice services belonging to Dettes Conseils Suisse and Caritas beider Basel offer support in German. A Basel notary or lawyer can review an important contract, especially when property security or a French party is involved.
Filing a complaint: cantonal police and NCSC
A victim of a loan scam files a complaint with the Basel-Stadt cantonal police and reports the advert to the Federal Office for Cybersecurity (OFCS). A cross-border worker living in Alsace can also go to the French police or gendarmerie where they reside.
Steps for a secure private loan in Basel
- Choose the loan currency, Swiss francs or euros, and write it into the contract with the repayment account.
- Draft a bilingual German-French IOU stating that Swiss law applies and that Basel is the place of jurisdiction.
- Ask the borrower for a debt enforcement register extract and their last three payslips.
- Transfer the sum from an account in the lender's name, quoting the contract reference in the payment details.
- Set up a monthly standing order and keep a repayment table signed by both parties every year.
- Declare the claim, the debt and the interest in each party's country of tax residence: Switzerland, France or Germany.
What a peer-to-peer loan costs in Basel
| Item | Order of magnitude (CHF) | Comment |
|---|---|---|
| Interest on a private loan | Freely agreed | Usury punished under art. 157 of the Swiss Criminal Code |
| Credit from a lender subject to the LCC | Max. 10% a year (indicative, 2026) | Cap set by the Federal Council |
| CHF/EUR exchange | At the daily rate | Risk borne by the party converting |
| Debt enforcement request | Federal fee based on the amount | Advanced by the creditor |
| Fake file fees | Money lost | Sign of fraud, to be reported |
Useful documents for a loan in Basel
- Passport or identity card and G or B permit
- Payslips in CHF for the last three months
- Debt enforcement register extract less than three months old
- IOU signed in German and French
- Swiss or European IBAN of the repayment account
- Transfer notice proving the funds were handed over
Traps to avoid in the Basel region
- Repaying in euros a loan denominated in francs without an exchange clause, which creates gaps and disputes at every instalment.
- Paying notary fees to a so-called lender met in a Facebook group for Basel cross-border workers.
- Handing over cash on either side of the border without a receipt, then being unable to prove the loan in court.
- Agreeing to pay in gift cards or cryptocurrency for fees supposed to unlock credit already granted.
- Ignoring the lender's country of tax residence and failing to declare the interest earned on the sum lent.
Peer-to-peer lending in Basel: common questions
Can a French cross-border worker borrow from a Basel colleague?
Yes, nothing prohibits a private loan between a French resident and a Swiss resident. The contract must state the applicable law, the currency and the competent court. If payments stop, recovery follows the debtor's residence, which justifies a very precise document.
Do you need a notary for a loan in Basel?
Not for a simple loan: a signed IOU is enough under Swiss law. A notary becomes necessary when property security, such as a mortgage note, must be created and entered in the Basel-Stadt land register.
In which language should a Basel loan contract be written?
German is the official language of Basel-Stadt, but a contract may be written in French if both parties understand it. A bilingual version limits challenges, especially if the document ever has to be produced before a Basel authority.
Does the 10% cap apply to a family loan in Basel?
No, this cap concerns consumer credit granted by professional lenders covered by the LCC. A family loan remains free, subject to the criminal ban on usury. Modest interest, clearly written down, avoids conflicts and suspicion.