Specify the salary or hourly rate, including details about payment frequency and method. In Virginia, offer letters are usually enough.The offer letter should provide details on the salary and pay periods. You must fill out the Part Time Temporary Appointment Authorization for Payment (P-14A) as well as the offer letter to the candidate. Learn what to include in a job offer letter and use our ready made template. Enter the salary amount being offered to the employee. The salary may be entered as an annual, monthly or hourly basis.