Filing requirements when married with lower than min taxable income and need to qualify for social services benefits

Hi

Assume:

1.  We do not have any IRS refunds to request back.

2.  We are making less than the below amount from all income sources including W2s,

Do we need to file a tax return?

If we do not need to file, is there a benefit to filing the tax return if we qualify for social services benefits and those agencies may require a tax return to validate which benefits we could qualify for?

Thanks