https://smartasset.com/taxes/all-about-irs-form-1040a
1040A Form (IRS): Eligibility & Instructions - SmartAsset
The 1040A was consolidated into a single 1040 form with the passing of new tax laws in 2017. It could come back into play after 2025 if tax laws don't change.
1040aformirseligibilityinstructions