Yes. You add your wife's social security to her taxes. You will enter it in the retirement section form SSA-1099.
There is not a age limit for filing taxes or the type of income to include. Even if you are over 65, your social security can be taxable if you have other income.
Depending on your situation, up to 85% of it is taxed.
If you fall into the following, 85% of your social security is taxable income
- Single with income above $34,000
- Married Filing Jointly with income above $44,000
- Married Filing Separate regardless of income
If you fall into the following, 50% of your social security is taxable income
- Single with combined income between $25,000-$34,000
- Married Filing Jointly with combined income between $32,000 and $44,000
Your combined income is calculated by adding your
- AGI plus
- Nontaxable Interest plus
- 1/2 of your social security Benefits
Social Security Benefits Taxes