The IRS released data on 2020 individual income tax returns (Spring 2022 Statistics of Income Bulletin). There were 164.2 million Forms 1040 and 1040-SR filed for 2020, up from 159.7 million in the previous year. The standard deduction was claimed by 87.5% of all filers; only 12.5% of taxpayers itemized their personal deductions.
Income tax returns for 2020 reflected several law changes, some of which were related to COVID-19 relief. Law changes included:
A fixed deduction allowed to every taxpayer, except those who may be claimed as a dependent by another person. Extra exemption deductions are allowed for a spouse on a joint return and for each qualifying dependent. A deduction of $3,400 is allowed for each exemption claimed on 2007 returns, but the deduction is phased out for certain high income individuals.