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Guides API Reference Changelog API Policy API Status Gusto Security

Guides

Guides API Reference Changelog API Policy API Status Gusto Security

These docs are for v2024-03-01. Click to read the latest docs for v2025-06-15.

Basics

Introduction
Getting Started
- Setting Up Postman
- Updating Postman Collections
Payroll Fundamentals
API Versioning
- Getting Setup
- Version Upgrade Guide
Authentication
- OAuth2
- Strict Access
Errors
- Error Categories
Idempotency
Pagination
Rate Limits
Scopes
Webhooks
Partner Notifications
- Partner Notification types
- Testing Partner Notifications

Gusto Flows (Pre-built UI)

Introduction
Requirements
Getting Started
Customize Flows
- Custom Font for Flows
Flow Types
Try It Now
Flow events

Companies

Introduction
Onboard a Company
- Migrate an Existing Company
- Onboard a Contractor-Only Company
Create Company Benefits
Company Forms
Manage Company Attachments
Create a Department
Calculate an Invoice

W2 Employees

Introduction
Onboard a W2 Employee
- Onboarding Method Comparison
Create a Job and Compensation
W2 Employee Forms
- I-9 Employment Verification
  - I-9 Verification Using Flows
Terminate a W2 Employee
Rehire a W2 Employee
Manage Employee Addresses: Effective Dating
Create a Child Support Garnishment

Contractors

Introduction
Onboard a Contractor
- Onboarding Method Comparison
Terminate a Contractor
Contractor Payments
- Contractor Payment Receipts
Contractor Forms and Documents
- Contractor Forms
- Contractor Documents

Payrolls

Introduction
Payroll Processing Speeds
- Recovery Cases
Calculate An Employee's Gross Wage
Complete a Regular Payroll
Create an Off Cycle Payroll
Create a Termination Payroll Flow
Create Company Specific Custom Earnings
Create a Historical Payroll
Pay Schedules
Generate Printable Paper Checks
Gross-Up

Reports

Generate Custom Reports
Retrieve a General Ledger report

ACH TRANSACTIONS

ACH Transactions
- ACH Codes and Transaction Types
- Bank Errors

Time Off

Create a Time Off Policy
Create a Holiday Pay Policy

Product Partnerships

Health Insurance (SimplyInsured)
On-Demand Pay (Clair)
Workers' Compensation (NEXT)
401(k) (Guideline)

Contact

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Contact Gusto

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Updated over 3 years ago

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