The Best Gusto Integrations and Apps in 2026
Gusto runs payroll, benefits, and HR for hundreds of thousands of small businesses — but payroll never lives alone. It has to reconcile with your books, pull hours from your time tracker, pay out approved expenses, and hand new hires off from your ATS. Gusto’s App Directory covers the tools most small teams already use, so those handoffs happen automatically instead of by hand.
Here are the Gusto integrations actually worth setting up, grouped by what they do — and then the way to connect Gusto to anything with an API, even when no native integration exists.
Accounting: QuickBooks, Xero, and FreshBooks
Sync every payroll run to your books, broken down by wages, taxes, and contributions.
- QuickBooks Online — payroll journal entries sync automatically after each run, split by wages, taxes, deductions, and employer contributions.
- Xero — payroll transactions post to your Xero ledger after every run, with control over how much detail flows through.
- FreshBooks — push payroll expenses into FreshBooks for teams that run their books there.
Time tracking and scheduling: When I Work, Deputy, Homebase, QuickBooks Time
Pull approved hours straight into payroll, no rekeying.
- When I Work — pulls approved hours into Gusto each pay period so you don’t reconcile timesheets by hand.
- Deputy — syncs approved timesheets automatically, with support for multiple pay rates, overtime rules, and PTO.
- Homebase — syncs hours, overtime, and break time directly into Gusto, including multiple pay rates.
- QuickBooks Time — imports tracked hours for payroll for teams already in the QuickBooks ecosystem.
Expenses and POS: Expensify and Clover
- Expensify — connects expense reimbursements to payroll, so approved employee expenses get paid out in a Gusto payroll run.
- Clover — sync employee and hours data from your Clover point of sale.
Hiring and onboarding: Greenhouse and JazzHR
- Greenhouse — when a candidate is marked hired, their info flows into Gusto to kick off the new-hire and onboarding process.
- JazzHR — moves candidate data from hired to onboarding automatically, cutting duplicate entry for small and mid-sized teams.
Retirement and benefits: Guideline
- Guideline — Gusto’s 401(k), powered by Guideline, syncs contributions and deductions with each payroll run.
No-code automation: Zapier
- Zapier — connect Gusto to thousands of apps with simple triggers (“new employee → do X”). Great for straightforward field-mapping, though it’s built for basic automation, not for reasoning over your data.
The AI way to connect Gusto to anything: Carly
The App Directory covers the accounting, time, and hiring tools most small teams use. But the moment you need Gusto tied to a tool that isn’t on the list — or you want something smarter than “new hire → copy field” — you’ve hit the ceiling of native integrations and no-code triggers.
Carly is an AI executive assistant that connects to 200+ tools and, crucially, lets you bring your own API key to connect to anything with a REST API — Gusto included. Instead of a fixed catalog, you get an agent that:
- Acts on triggers, 24/7 in the cloud — when a new hire is added, a payroll runs, or a contractor is paid, Carly does the next step without you in the app.
- Reasons over your data — not just “copy this field,” but “read the new-hire’s details, draft a welcome email, schedule their orientation, and create onboarding tasks.”
- Ties Gusto to the rest of your stack — a payroll event becomes one step in a workflow that also touches email (Gmail and Outlook), calendar, CRM, and tasks.
- Builds the workflow from a plain-English description — tell it “when a new employee is added in Gusto, send them a welcome email and add their start date to my calendar” and it interviews you, then builds it.
AI agents start at $35/month, and steps in a workflow that don’t use AI run free and unlimited. See the full Claude + Gusto integration guide for how the API-key connection works.
How to connect Gusto to a tool with no native integration
- Get API access to Gusto — generate an API token through Gusto’s developer/API access so a tool can read and act on your payroll and people data.
- Paste your API token into Carly on the integrations page.
- Describe the workflow in plain English, and Carly builds it — connecting Gusto to whatever else you need, on triggers, without your laptop open.
Frequently Asked Questions
Does Gusto have integrations?
Yes. Gusto’s App Directory includes native integrations for QuickBooks, Xero, FreshBooks, When I Work, Deputy, Homebase, QuickBooks Time, Expensify, Clover, Greenhouse, JazzHR, and Guideline, plus Zapier for no-code automation and an API for custom connections.
What is the best Gusto integration for automation?
For simple triggers, Zapier covers most apps. For automation that acts on triggers and reasons over your data — and to connect Gusto to tools with no native integration — an AI agent like Carly connects via your Gusto API access and runs workflows in the cloud.
How do I connect Gusto to an app that isn’t listed?
Use Gusto’s API. Get API access to your Gusto account, then hand the token to a platform that supports bring-your-own-API-key connections — Carly does this and can wire Gusto to any tool with an API.
How much does an AI automation for Gusto cost?
Carly’s AI agents start at $35/month, with non-AI workflow steps running free and unlimited. Your Gusto plan and API access are separate.
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