In many cases, yes, though the relationship isn't always straightforward. Some UAE banks offer a slightly different rate depending on the tenure you select, since a longer tenure carries more risk exposure for the bank over time, while a shorter tenure is sometimes rewarded with a marginally better rate. That said, tenure is usually only one factor among several, alongside your income, credit score, and existing relationship with the bank, so the actual rate offered to you is rarely determined by tenure alone.
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