Accounting · QuickBooks integration

Post invoices, customers and payments from your operations software into QuickBooks.

Operations software holds the jobs, orders and visits that create revenue, while QuickBooks holds the books; we build the connection between the two for your account. Invoices, customers and payments move from the system your team works in to the ledger, and balances return. Direction and mapping are agreed per project.

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At a glance

Connecting QuickBooks to the rest of your business.

Most QuickBooks users still create the sale elsewhere. A work order closes, a delivery is signed or a visit is completed, and someone retypes the amount into an invoice. Customer names drift between tools over the months, and totals stop agreeing between the two systems. Nobody can say which figure is right.

The link runs from your own software to your QuickBooks company file; your accountant agrees which objects travel and in which direction before any code is written. Availability depends on the API, your QuickBooks plan, your region and the way your account is set up, which we check first.

What moves

What flows between QuickBooks and your system.

Each flow is agreed one at a time: which record, in which direction, and what happens when it fails.

Invoices raised on completion

When a job, order or delivery reaches the stage you choose, its invoice is created in QuickBooks with the same lines, quantities and tax codes. The QuickBooks invoice number is then written back to the operational record, so a clerk looking at the job can see which invoice covers it and its current status. No retyping.

Customers kept as one list

A new customer created in your system is matched against existing QuickBooks customers by name, email or tax number before anything is added, so one buyer never becomes two. Later edits follow in the agreed direction. Matches come first.

Payments applied to open invoices

Receipts recorded in QuickBooks, or bank deposits matched there, are read back and applied to the invoice in your system. Part payments are applied as they arrive, and the balance still due stays visible on the invoice for the collections team. Credit memos follow the same path.

Items mapped to the chart of accounts

Each product or service line in your software is tied to an item and an income account in QuickBooks. Mappings change only by a managed edit. Revenue lands where it should.

Sales tax carried on every line

Each invoice line carries a tax code, which is mapped to the matching QuickBooks tax rate and account, so the return can be prepared from the ledger without rework. Exempt customers carry that flag with them. Rates stay in QuickBooks.

How it is built

From scoping to hand-over.

1. List the objects and who owns each

Customers, items, invoices, payments and credit memos are the usual QuickBooks objects, and each is given the stage at which it leaves your own system. Each travels one way or both, and your accountant signs off the chart of accounts mapping. Scope is written down.

2. Connect and test in a sandbox

We authorise against a QuickBooks sandbox company first. Sample invoices and payments run through it so that totals and tax can be checked before your live books are touched. Live data waits.

3. Match items to the chart of accounts

Matching rules stop duplicates. A rejected invoice goes to a queue with the reason attached, and the team fixes the cause and resends it without retyping anything. Duplicates are blocked.

4. Reconcile the books, then hand over

A reconciliation view sets invoice totals in your system beside QuickBooks every day. We hand over the mapping sheet, the failure queue and the steps to reconnect if authorisation expires. Nothing stays hidden.

Industries

Trades that often use QuickBooks.

Ready products

Products it is paired with.

Modules

Capabilities it connects to.

What we build

What we would build for QuickBooks projects.

Usually in this order, starting with whatever the audit ranks first.

API and System Integration

Tally, WhatsApp, payment gateways, GST portals and your own apps sharing one set of numbers.

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Data Migration and Moving Off Spreadsheets

Data migration and spreadsheet replacement covers auditing existing files, cleaning and deduplicating records, loading them into a new system and reconciling the result against known totals. A parallel run of both systems comes before cutover. The original files are kept as they were.

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Business Process Automation

Approvals, reminders, follow-ups and reports that run on their own instead of on someone remembering.

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Common questions

Questions about connecting QuickBooks.

Does data flow both ways between QuickBooks and my software?

It can. Invoices usually flow one way to QuickBooks, while payments and balances flow back, because two-way editing of the same field invites conflicts. Each object is set per project.

What does my QuickBooks plan need to allow?

It depends on your plan. We check your account before quoting and say plainly if a feature you want is not available to it.

Can historic invoices and customers be brought across?

Usually yes, as a one-time import checked against your existing books, with the date range agreed with your accountant so that opening balances are not counted twice. Review comes before import.

What happens if QuickBooks changes its API?

The connection sits in one module, so a change is fixed in one place; under a support arrangement we watch for announced changes and update the mapping.

GullySystem is an independent company and is not affiliated with QuickBooks; the name is a trademark of its owner.

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