Sheesh, the worksheet[1] to compute your tax burden if you make more than $106k is annoying.  I was just looking for an algorithm of some sort.  From the under $106k table, it looks to be about 5%.  That plus NY state taxes seems to put it on par with CA as a whole.  That said, San Francisco appears to have an additional 1.5% flat income tax rate, which can raise the tax rate for high earners (well over $200k) in SF to close to 15% for combined state and local taxes.<p>1: <a href="https:&#x2F;&#x2F;www.tax.ny.gov&#x2F;pdf&#x2F;current_forms&#x2F;it&#x2F;it201i_nys_tax_computation_wkshts.pdf" rel="nofollow">https:&#x2F;&#x2F;www.tax.ny.gov&#x2F;pdf&#x2F;current_forms&#x2F;it&#x2F;it201i_nys_tax_c...</a>