A tuition bond in Singapore refers to the Tuition Grant Scheme (TG) offered by the Ministry of Education (MOE), where selected international students can receive a government subsidy that significantly reduces their tuition fees compared with full unsubsidised fees.
If you opt in and receive the Tuition Grant, you must sign a legally binding Tuition Grant Agreement in which you agree to work full-time for a total of three (3) years after graduation for a Singapore entity (such as a company registered in Singapore, a government agency, or even your own Singapore-registered business with proper payroll arrangements approved by MOE).