Should I put my wife’s income on our return since she got paid cash and she didn’t get a 1099?

[JamesG1]

It sounds like it should be included in gross income.  

Employee compensation includes everything you receive in payment for personal services.

IRS What is Taxable and Nontaxable Income states:

Generally, an amount included in your income is taxable unless it is specifically exempted by law. Income that is taxable must be reported on your return and is subject to tax. Income that is nontaxable may have to be shown on your tax return but is not taxable.

[VolvoGirl]

That sounds like self employment income.   You can enter Self Employment Income into Online Deluxe or Premier but if you have any expenses you will have to upgrade to the Self Employed version. Or use any of the Desktop CD/Download programs.

How to enter income from Self Employment
https://ttlc.intuit.com/community/self-employed/help/how-do-i-report-income-from-self-employment/00/...

Self Employment tax (Scheduled SE) is automatically generated if a person has $400 or more of net profit from self-employment. You pay 15.3% SE tax on 92.35% of your Net Profit (If it is greater than $400). The 15.3% self employed SE Tax is to pay both the employer part and employee part of Social Security and Medicare (FICA). So you get social security credit for it when you retire.