Tax Forms

Generally, Payments made under an accountable plan are excluded from employee's gross income and not reported on Form W-2, However
if the per diem or mileage allowance exceed the IRS rules the excess is treated as wages in Box 1 and also in Box 12 Using Code L.
These amounts are subject to Social Security, Medicare and Withholding taxes.

Electronic fill in forms or uploads are filed through SSA's Business Service Online BSO website is www.socialsecurity.gov/employer and click on First time filers or Returning filers under the Before you File Link.

Mail Paper Form W-3 with Copy A of Forms W-2 by February 28, 20XX

File Paper copies of Form W-3 with the entire Copy A page of Forms W-2 to
Social Security Administration
Data Operations Center
Wilkes-Barre, PA 18769-001

Taxable fringe benefits and miscellaneous payments are listed in box 14.

Elective deferrals from retirement plans and adjustments or deductions are listed with a code and an amount in Box 12.
CODES:
A = Uncollected SS or RRTA tax on tips
B = Uncollected Medicare tax on tips
C = Taxable cost of group life insurance over 50K
D through H,S,AA,BB,EE = Elective Deferrals and Roth contributions
J = Nontaxable sick pay
K = 20% excise tax on golden paachute payments
L = Employee business expense reimbursements
M = Uncollected SS or RRTA tax on life insurance
N = Uncollected Medicare tax on life insurance
P =excludable moving expense reimbursements
Q =Nontaxable combat pay
R = Employer contributions to Archer MSA
S = salary reduction under 408(p) Simple
T = Adoption benefits
V= income from stock option
W = HSA employer contribution
Y = 409A deferral
Z = 409A income
AA = Roth contribution under 401(k)
BB =Roth contribution under 403(b)
DD = employer health coverage
EE =Roth contribution under 457(b)

Reimbursements from your employer and the value of employer care services are included in Box 10
Generally, amounts up to $5,000 are tax free and the excess over $5,000 are included on Form 1040 line 7 as taxable wages.

If you worked in a restaurant employing 10 or more people, your employer will report in Box 8 your share of taxable tip income.
The amount in Box 8 is includable in Form 1040 Line 7.

The amount in Box 1 can be unlimited but the amount in Box 3 and 7 should never exceed $ 106,800 in 2011. Also;
Elective salary deferrals to a 401(k), 403(b) Simple, Salary reduction SEP as well as payments of adoption expenses and deferred amounts under a nonqualified plan or 457 plan are included in Box 3 and not in Box 1 Taxable wages.