Who files a 1099K

First----do you receive Social Security----that is not the same thing as SSI---so we need to be clear.  

WHAT IS THE DIFFERENCE BETWEEN SOCIAL SECURITY BENEFITS AND SSI?

https://www.ssa.gov/ssi/text-over-ussi.htm

If you receive Social Security you get a SSA1099 in January.   If you get SSI you do not get any document for that.

If you are receiving a pension they send you a 1099R for that.

 Go to Federal> Wages & Income>>Retirement Plans and Social Security  (SSA1099 and 1099RRB) to enter your SSA1099.

To enter your retirement income, Go to  Federal> Wages and Income>Retirement Plans and Social Security>IRA  401 k) Pension Plan Withdrawals to enter your 1099R.

No you do t get a 1099K.  You will get a 1099R for the pension.  You don't get a SSA-1099 for ssi.  You don't report ssi at all.   Unless you mean Social Security or Social Security Disability.  Then you get a SSA-1099 and report it.

A lot of times people say ssi when they are getting Social Security.  But ssi actually stands for supplemental security income.  It is different than SS.  You don't get a SSA-1099 for ssi and you do not report ssi on your tax return.

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

A form 1099-K is issued by a business not an individual.

If you receive Social Security benefits you will receive a Form SSA-1099 from the Social Security Administration

If you receive a pension you will receive a Form 1099-R from the plan administrator.

You enter the information from these forms on your tax return.

To enter Social Security benefits reported on form SSA-1099

Click on Federal Taxes (Personal using Home and Business)
Click on Wages and Income (Personal Income using Home and Business)
Click on I'll choose what I work on (if shown)
Scroll down to Retirement Plans and Social Security
On Social Security (SSA-1099, RRB-1099), click the start or update button

To enter, edit or delete a form 1099-R -

Click on Federal Taxes (Personal using Home and Business)
Click on Wages and Income (Personal Income using Home and Business)
Click on I'll choose what I work on (if shown)
Scroll down to Retirement Plans and Social Security
On IRA, 401(k), Pension Plan Withdrawals (1099-R), click the start or update button