It's "savings are/have". It's not correct to use "is" or "has" because "savings" is a plural noun, which requires a verb in the plural.
It's "savings are/have". It's not correct to use "is" or "has" because "savings" is a plural noun, which requires a verb in the plural.
Her savings are losing their value because of inflation.
Her savings is losing their value because of inflation.
Follow the same strategy with other verbs to say, for example, "savings grow" (not "savings grows").
He wants to know how to make his savings grow.
He wants to know how to make his savings grows.
A partial list of related plural nouns that also take a plural verb:
