You should choose the pay frequency that best fits your business needs. The pay period you choose is up to you. Most businesses pay weekly, bi-weekly (every two weeks), semi-monthly (twice per month), or monthly. You should be consistent over time and across your workforce. i.e. If you pay one employee bi-weekly, it makes sense to pay all your employees bi-weekly. If you start the year paying semi-monthly, it is best to pay semi-monthly throughout the year.