You have not provided any details about the sources of income you will be receiving when you retire, or how much income you will receive. Those details are important so that someone can answer your question.
CA does not tax Social Security, but CA may tax other sorts of retirement income like income from pensions, retirmement accounts, etc.
Depending on the amount of other income you receive, your Social Security may be taxable on your federal return, as will other sorts of retirement income from pensions, retirement accounts, etc.
TAX ON SOCIAL SECURITY
Up to 85% of your Social Security benefits can be taxable on your federal tax return. There is no age limit for having to pay taxes on Social Security benefits if you have other sources of income along with the SS benefits. When you have other income such as earnings from continuing to work, investment income, pensions, etc. up to 85% of your SS can be taxable.
What confuses people about this is that before you reach full retirement age, if you continue working while drawing SS, your benefits can be reduced if you earn over a certain limit. (For 2019 it was $17,640— for 2020 it was $18,240; for 2021 it was $18,960. For 2022 it was $19,560 — for 2023 $21,240)
After full retirement age, no matter how much you continue to earn, your benefits are not reduced by your earnings; your employer will still have to withhold for Social Security and Medicare. If you work as an independent contractor then you will pay self-employment tax for Social Security and Medicare.
To see how much of your Social Security was taxable, look at lines 6a and 6b of your 2022 Form 1040
https://ttlc.intuit.com/questions/1899144-is-my-social-security-income-taxable
https://www.irs.gov/help/ita/are-my-social-security-or-railroad-retirement-tier-i-benefits-taxable
You need to file a federal return if half your Social Security plus your other income is $25,000 when filing single or head of household, or $32,000 when filing married filing jointly, $0 if you are filing married filing separately.
Some additional information: There are 11 states that tax Social Security—Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont These states offer varying degrees of income exemptions, but two mirror the federal tax schedule: MN and VT.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
