IRS Publication - Employer's Tax Guide (Circular E)https://www.irs.gov/pub/irs-pdf/p15.pdf IRS Publication - Fringe Benefitshttps://www.irs.gov/pub/irs-pdf/p15b.pdf Ohio Local Tax Lookup Websitehttps://thefinder.tax.ohio.gov/StreamlineSalesTaxWeb/default_municipal.aspx PaycheckCity Payroll Calculatorshttps://www.paycheckcity.com/calculator Pennsylvania Local Tax Lookup Websitehttps://munstats.pa.gov/public/findlocaltax.aspx