Harvest + QuickBooks
Sync Harvest Time Tracking with QuickBooks and Stop Doing It Manually
Cut out the data entry and keep your billing, invoicing, and accounting in sync between Harvest and QuickBooks.
Why integrate Harvest and QuickBooks?
Harvest and QuickBooks are workhorses in any service business's tech stack — Harvest for capturing billable hours and project expenses, QuickBooks for accounting, invoicing, and cash flow. When they don't talk to each other, finance teams get stuck doing manual exports, chasing reconciliation errors, and watching billing delays eat into revenue. Connecting Harvest and QuickBooks through tray.ai closes that gap, so data moves automatically from the moment a timer stops to the moment an invoice is paid.
Automate & integrate Harvest & QuickBooks
Use case
Automated Invoice Creation from Harvest Time Entries
When a billing period closes in Harvest, tray.ai automatically generates an invoice in QuickBooks with the correct line items, rates, and client details already filled in. No more exporting Harvest reports and re-entering everything by hand. You can trigger invoice creation on a schedule or when a project milestone is hit.
Use case
Sync Harvest Clients and Projects to QuickBooks Customers and Jobs
When a new client or project is created in Harvest, tray.ai automatically creates or updates the matching customer and job record in QuickBooks. Billable work gets assigned to the right accounts from the start, with no manual mapping. Both systems stay structurally aligned so reporting is consistent across teams.
Use case
Push Harvest Expenses to QuickBooks as Bills or Journal Entries
Expenses logged in Harvest — travel, software, contractor costs — are automatically pushed to QuickBooks as bills or journal entries against the right expense accounts. Finance staff don't have to re-enter project costs manually. Custom field mapping makes sure expenses land in the correct QuickBooks categories every time.
Use case
Sync Invoice Payment Status from QuickBooks Back to Harvest
When a QuickBooks invoice is marked as paid, tray.ai writes that status back to the matching Harvest invoice. Both systems stay in agreement without manual updates. Project managers can check payment status directly in Harvest without logging into QuickBooks, and the full invoice lifecycle is visible in one place.
Use case
Weekly Time and Cost Summary Reports for Finance Teams
tray.ai pulls approved time entries and expenses from Harvest on a weekly schedule and compiles a structured cost summary that's automatically posted to QuickBooks or sent as a report to finance stakeholders. It replaces the manual end-of-week reconciliation grind with a reliable, automated workflow. Teams get consistent visibility into project profitability without the administrative overhead.
Use case
New QuickBooks Customer Triggers Harvest Client Setup
When a new customer is added to QuickBooks — typically when a contract is signed — tray.ai automatically creates the matching client in Harvest so the project team can start tracking time right away. This removes a common bottleneck where time tracking stalls because system setup hasn't caught up with the sales process.
Use case
Harvest Timesheet Approval Triggers QuickBooks Payroll Data Export
Once timesheets are approved in Harvest, tray.ai extracts the approved hours by employee or contractor and pushes structured payroll data to QuickBooks for processing. The manual handoff between project operations and finance at the end of each pay period disappears. Payroll data is accurate, timely, and tied directly to approved project hours.
Get started with Harvest & QuickBooks integration today
Harvest & QuickBooks Challenges
What challenges are there when working with Harvest & QuickBooks and how will using Tray.ai help?
Challenge
Inconsistent Client and Project Naming Between Systems
Harvest and QuickBooks tend to drift apart on naming conventions over time, especially when records are created independently by different teams. That makes automated matching and reconciliation fragile — and errors compound fast.
How Tray.ai Can Help:
tray.ai lets you build custom field mapping and normalization logic directly into your integration workflows. You can define naming rules, use lookup tables to match records across systems, and store cross-system IDs so every Harvest client maps reliably to its QuickBooks counterpart regardless of how each was originally named.
Challenge
Handling Multi-Currency and Tax Complexity
Businesses with international clients often manage invoices in multiple currencies in Harvest, while QuickBooks has its own requirements for tax codes, currency settings, and account structures that don't always map cleanly from time-tracking data.
How Tray.ai Can Help:
tray.ai supports conditional branching so you can apply different currency conversion rules, tax codes, and account mappings based on client location, project type, or billing currency. Every QuickBooks transaction comes out correctly structured without someone manually sorting it out.
Challenge
Avoiding Duplicate Invoices and Double-Billing
Without deduplication logic, syncing Harvest time entries to QuickBooks invoices can produce duplicates — particularly when retries happen after a failed sync or when multiple people trigger billing manually. Clients notice. It's not a good look.
How Tray.ai Can Help:
tray.ai workflows check for an existing QuickBooks invoice before creating a new one, using shared reference IDs or idempotency keys. Built-in error handling and retry logic make sure failed steps are safely retried without generating duplicate records in either system.
Challenge
Managing Partial Payments and Invoice Revisions
Clients sometimes pay partially or request changes after an invoice has already been synced from Harvest to QuickBooks. That creates a mismatch between the two systems that needs careful handling to avoid reconciliation headaches.
How Tray.ai Can Help:
tray.ai uses event-driven updates, so when a QuickBooks invoice is revised or a partial payment is recorded, the workflow triggers an update on the Harvest side rather than creating a new record. Conditional logic handles partial payment scenarios by updating only the relevant fields, not overwriting everything.
Challenge
Timesheet Approval Delays Breaking Invoice Schedules
When timesheet approvals in Harvest are delayed — a manager is out, a process breaks down — automated invoice workflows can fire before all billable hours are captured. Incomplete invoices go to clients. Nobody is happy.
How Tray.ai Can Help:
tray.ai lets you build approval gate logic into your workflows, holding the invoice creation step until all timesheets for a given period and project are approved in Harvest. You can also set up automated reminders to approvers so delays get addressed before they hit your billing cycle.
Start using our pre-built Harvest & QuickBooks templates today
Start from scratch or use one of our pre-built Harvest & QuickBooks templates to quickly solve your most common use cases.
Harvest & QuickBooks Templates
Find pre-built Harvest & QuickBooks solutions for common use cases
Template
Harvest Billing Period Close → QuickBooks Invoice Creation
Automatically generates a QuickBooks invoice with itemized line items when a billing period closes or a project is marked billable in Harvest, mapping client details, rates, and hours directly to the correct QuickBooks customer account.
Steps:
- Trigger when a Harvest billing period closes or a project invoice is marked ready
- Retrieve all approved time entries and expenses for the billing period from Harvest
- Create or update the corresponding customer invoice in QuickBooks with correct line items and amounts
Connectors Used: Harvest, QuickBooks
Template
New Harvest Client → QuickBooks Customer Sync
Watches for new client records in Harvest and automatically creates matching customer records in QuickBooks, with consistent naming, contact details, and account structure across both platforms.
Steps:
- Trigger when a new client is created in Harvest
- Map Harvest client fields to QuickBooks customer fields including name, email, and billing address
- Create the customer in QuickBooks and store the QuickBooks ID back in Harvest for future reference
Connectors Used: Harvest, QuickBooks
Template
Harvest Expense Entry → QuickBooks Bill Creation
Monitors Harvest for newly logged or approved project expenses and automatically creates corresponding bills or expense entries in QuickBooks, mapped to the correct expense account and vendor.
Steps:
- Trigger when an expense is submitted or approved in Harvest
- Extract expense details including amount, category, and associated project
- Create a bill or expense transaction in QuickBooks under the appropriate account and client job
Connectors Used: Harvest, QuickBooks
Template
QuickBooks Invoice Paid → Harvest Invoice Status Update
Listens for payment events on QuickBooks invoices and automatically updates the matching Harvest invoice to reflect the paid status, keeping both platforms in sync without manual intervention.
Steps:
- Trigger when a QuickBooks invoice is marked as paid or a payment is recorded
- Look up the matching Harvest invoice using the shared client and invoice reference
- Update the Harvest invoice status to reflect payment and log the payment date
Connectors Used: QuickBooks, Harvest
Template
Weekly Harvest Timesheet Approval → QuickBooks Payroll Data Push
Each week, once timesheets are approved in Harvest, this template extracts approved hours by employee or contractor, formats the data, and sends it to QuickBooks to support payroll processing.
Steps:
- Trigger on a weekly schedule or when timesheets reach approved status in Harvest
- Aggregate approved hours by employee, role, and project from Harvest
- Push structured payroll data to QuickBooks in the correct format for payroll or journal entry processing
Connectors Used: Harvest, QuickBooks
Template
New QuickBooks Customer → Harvest Client and Project Creation
When a new customer is added in QuickBooks, this template automatically creates the matching client and an initial project in Harvest so project teams can start tracking time right away, without waiting on manual system setup.
Steps:
- Trigger when a new customer record is created in QuickBooks
- Map QuickBooks customer details to Harvest client fields and create the client record
- Optionally create a default project in Harvest associated with the new client based on predefined templates
Connectors Used: QuickBooks, Harvest