Calendar Year 2023:
When employees elect benefits and/or an HSA contribution, deductions for each pay check are calculated automatically and spread out across 26 pay checks.
On a biweekly pay check calendar, there are 26 pay periods each year, resulting in 2 months with a third pay check. In the 3rd and final pay check of those months, benefits like medical, dental, and vision insurance as well as HSA contributions are taken out of this third pay check.
Retirement deductions are based on a percentage and are taken out of every pay check based on your retirement election.
You can find full information about the cost of each plan in the benefits guide: