Yes if you have self employment income. Now that you are receiving Social Security doesn't change anything. You still file your regular tax return and add the SS to it.
Up to 85% of Social Security becomes taxable when all your other income plus 1/2 your social security, reaches:
Married Filing Jointly: $32,000
Single or head of household: $25,000
Married Filing Separately: 0
You always file a schedule C if you have net profit from self-employment of more than $400. Even if you are receiving your SS benefit, you still pay SS and Medicare tax (or self-employment tax) on income earned from working. And you must pay income tax on the net income as well, which is also calculated on schedule C.
You may be confused about certain rules. To state them briefly, if you are younger than full retirement age, having income earned from working may reduce your benefit. (For 2022, the cap is $19,560.) However, income earned from working is always subject to social security tax, even if it does not reduce your benefit because you are full retirement age. Also, having more than a certain amount of income can make your SS benefit partly taxable--this includes both income earned from working and unearned income like pensions or IRA.
just to clarify the earnings limits:
In 2022, if you’re under full retirement age, the annual earnings limit is $19,560 as stated by @Opus 17
If you will reach full retirement age in 2022, the limit on your earnings for the months before full retirement age is $51,960.
Starting with the month you reach full retirement age, there is no limit on your earnings that will affect your social security payments.