What this includes
As a contractor you pay both halves of Social Security and Medicare tax. The calculator adds the employer's half (7.65%) as an extra cost. That's a simplification, since part of it is deductible and Social Security tax stops above a yearly wage cap. Remember the weeks you don't work as a 1099 are unpaid. Talk to an accountant for your real numbers. See W-2 vs 1099 for CRNAs.
Estimates only. Your contracts and payer rules decide what you are actually paid.
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