In: Accounting
Social security is 12.4% on self-employment net earnings upto $132,900. Medicare is 2.9%
Below is the computation:
| Particulars | Social security | Medicare | 
| Self-employment wages | $ 140,500.00 | $ 140,500.00 | 
| 
× 92.35% = (a)  | 
$ 129,751.75 | $ 129,751.75 | 
| Ceiling applicable (b) | $ 112,500.00 | $ - | 
| 
Earnings subject to taxes Lesser of (a) and (b)  | 
$ 112,500.00 | $ 129,751.75 | 
| × tax rate | 12.40% | 2.90% | 
| Tax amount | $ 13,950.00 | $ 3,762.80 | 
| Total tax amount | $ 17,712.80 | |
| Particulars | Social security | |
| Ceiling amount | $ 132,900.00 | |
| Less: wages subject to tax | $ 20,400.00 | |
| Self-employment taxable ceiling | $ 112,500.00 | 
Total social security taxes payable is $17,712.80
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