Русско-англо-русский юридический словарь

Last year, Brazil spent more than 6 per cent of economic output on debt servicing. Losing an investment grade credit rating will rise the country’s borrowing costs even further. (worldpoliticsjournal.com)

Almost one-third of Ghana’s budget is spent on external debt servicing. (The Guardian)

debt service (also debt servicing): the act of regularly paying back a debt, including interest (Cambridge Business English Dictionary)