For example, if you wish to calculate a monthly average number of hours worked and use six months of data, divide the total hours your employee works in six months and divide the result by six to determine the monthly average hours of work for the employee.
Social Security disability payments may be includable in taxable income and still not increase the tax you pay. A lump-sum retroactive payment of Social Security Disability Insurance (SSDI) may be includable in taxable income, depending on the amount and your other income and deductions.
7 people found this helpful. Social Security Disability income can be taxable based upon the other income that is reported on your tax return. Up to 85% of Social Security becomes taxable when all your other income plus 1/2 your social security reaches: 1  Married Filing Jointly - $32,000.  Single or Head of Household - $25,000.