What requirement must be met regarding income calculation for Housing Choice Voucher applicants?

The requirement for Housing Choice Voucher applicants is to consider all sources of income, which includes part-time employment, benefits, and any other forms of financial support. This comprehensive approach ensures that the income calculation accurately reflects the applicant's overall financial situation, allowing for a fair assessment of their eligibility for assistance.

Counting all income sources is crucial because various forms of income can significantly impact an applicant's ability to afford housing. Benefits such as Social Security, unemployment, child support, and any other regular financial inflow also contribute to the household's monetary resources and must be included in the total income calculation.

The other options focus on narrower definitions of income. Limiting the calculation to only full-time employment excludes many households that rely on mixed income sources. Considering only last year's earnings disregards any changes in the applicant's financial situation, which may not reflect their current capabilities. Lastly, basing income calculations on a threshold would mean that some applicants who are in need could potentially be overlooked, undermining the purpose of the Housing Choice Voucher program aimed at assisting low-income individuals and families.