long-term liability
US /ˌlɔŋ tɜːrm ˌlaɪəˈbɪlɪti/
UK /ˌlɔŋ tɜːrm ˌlaɪəˈbɪlɪti/

1.
a liability that is not due for more than one year
:
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The company's balance sheet showed a significant amount of long-term liabilities, including bonds payable.
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Pension obligations are often classified as long-term liabilities.