The receipt is written like this:

I have received a loan of RMB. }

Signature of both parties

Date, year and month

The IOU is written like this:

XXX (ID number) owes XXX (ID number) RMB (or other substances) ××××××× (in words), and both parties agree to return it in full on the day of the current month.

Interest ××% (which can be 0), repayment method (lump sum or installment) and default settlement method (arbitration or litigation).

Signature of both parties

Date, year and month

The IOU is written like this:

Today, XXX (ID number) borrowed RMB ×××× (in words) from XXX (ID number). Both parties agree on the loan interest rate ××% (which can be 0), repayment method (one-time repayment or installment repayment), repayment period and default handling method (arbitration or litigation).

Signature of both parties

Date, year and month