Section
Codes
Deduction and earning code taxonomies, and why they never line up.
| Question | Type | Last verified |
|---|---|---|
| Can you pull an employer's deduction code list out of a payroll system through the API, or do you have to ask them? | comparison | 2026-09-10 |
| How do payroll systems represent an employer contribution separately from the employee deduction? | comparison | 2026-09-10 |
| How do you tell from a payroll deduction code whether it is pre-tax or post-tax? | guide | 2026-09-10 |
| Every ADP client we onboard has different deduction codes — is there any standard at all? | reference | 2026-09-10 |