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.
Taxable income from retired pay does not include the amount of SBP deductions. Participants are taxed only on what they actually receive. For example, if a retiree's non-disability retired pay is $6,000 a year and is reduced by $700 for SBP, only the reduced retired pay of $5,300 need be included as taxable income on the Federal income tax return. The SBP payable to the designated beneficiary is subject to Federal income tax, but is not subject to Federal estate tax.