QuickBooks integration
that gets the invoice right to the cent.
We connect QuickBooks Online to your CRM so invoices build themselves from the quote, payments flow back on their own, and inventory stays in step — a real two-way QuickBooks sync, not a one-way copy that leaves your pipeline guessing.
Begin the ConversationQuickBooks integration connects QuickBooks Online to the other systems that create and track sales — usually your CRM, website and shipping software — so invoices, payments and inventory move automatically. Axesris builds two-way QuickBooks Online CRM integrations: invoices out from the CRM, payments and stock levels back, with checks that stop a wrong invoice before it is sent.
QuickBooks is where the money is true. The CRM is where the sales team lives. When the two are not connected, someone retypes every order into QuickBooks, nobody in sales knows which invoices are paid, and the stock count in the CRM is whatever it was last time someone checked. Every one of those gaps costs time, and some of them cost money.
The build we are proudest of is a Zoho QuickBooks integration for a B2B wholesale distributor. A rep approves an order in Zoho CRM and the QuickBooks Online invoice is built in seconds — customer found or created, every line item matched, totals checked against the quote to the cent, emailed to the buyer, with the invoice number and link written back to the deal. If the totals do not match, it refuses to send and opens a high-priority task for a person instead.
We also offer HubSpot QuickBooks integration, scoped per project for businesses that run their pipeline in HubSpot. The principles carry over directly: decide which system owns each record, build the invoice from the deal, sync the money back, and never let a sync fail quietly.
Two-way QuickBooks sync — which records move which way.
"Two-way sync" is the most overused phrase in this category. It does not mean every field copies in both directions — that is how you get two systems overwriting each other. It means each kind of record has one owner, and the other system gets a faithful copy. In the build above, the split looks like this:
CRM → QuickBooks: customers and invoices. The deal and quote live in the CRM, so the invoice is built from them. Shelf counts entered in the CRM post to QuickBooks as inventory adjustments, so the warehouse team never opens the accounting software.
QuickBooks → CRM: payments and inventory levels. QuickBooks knows when money has actually settled, so it is the source for paid status. Stock, in-demand and available quantities flow back to the CRM every 15 minutes so reps quote against real numbers.
Once that ownership is written down, the rest is engineering: matching records reliably, handling partial payments, and catching the cases where the two sides disagree.
QuickBooks Online CRM integration, piece by piece.
The QuickBooks Online invoice is created from the approved deal and quote: customer found or created, items matched, totals checked to the cent, emailed to the buyer, number and link written back.
Intuit-signed webhooks, a 15-minute sweep and a daily recheck. Only real, settled payments count. Deal stages move with the money — Invoiced, Partially Paid, Paid.
QuickBooks stock levels flow to the CRM every 15 minutes. Stock leaves only when an order is paid. Counts entered in the CRM post back as QuickBooks inventory adjustments.
Paid orders become ShipStation orders. Tracking comes back to the CRM, and the buyer gets a branded shipped email — within 15 minutes of the label.
If the invoice will not match the quote, it is not sent. A high-priority task opens for a person instead. Wrong invoices are far more expensive to unwind than to stop.
Duplicate customers, mismatched item names and test data are fixed before the switch is flipped — on one build, 44 test records were cleaned out before go-live.
While we are in the books, we look. Edited invoices, tax settings and payment matching get checked, and anything wrong gets reported in plain numbers.
A Zoho QuickBooks integration, end to end.
- Zoho CRMOrder approved on the deal
- DelugeInvoice built and checked to the cent
- QuickBooks OnlineInvoice emailed; number and link written back
- Next.js on VercelSigned webhook + 15-min sweep sync payments
- Zoho CRMStage moves to Partially Paid or Paid
- ShipStationPaid order shipped; tracking back to the CRM
The CRM owns the order, QuickBooks owns the money, and each side reads the other instead of being retyped.
Zoho CRM ⇄ QuickBooks Online ⇄ ShipStation.
For a B2B wholesale distributor, we built the full order-to-cash chain. Orders come in from a website order form and land in Zoho CRM as a Contact, Account, Deal and Quote with line items. When the order is approved, a Zoho workflow runs a 971-line Deluge function that builds the QuickBooks Online invoice: it finds or creates the customer, matches every item, checks the total against the quote to the cent and emails the invoice to the buyer. The invoice number and a link are written back to the deal. If anything does not match, it refuses and opens a high-priority task.
Payments run through a separate integration service — Next.js on Vercel, receiving Intuit-signed webhooks, with Redis keeping state. A webhook catches each payment, a sweep runs every 15 minutes in case one was missed, and a daily recheck catches anything else. Only real settled payments count. The deal moves on its own: Order Request → Invoiced–Awaiting Payment → Partially Paid → Paid.
Inventory runs both directions. QuickBooks stock levels update the CRM's in-stock, in-demand and available figures every 15 minutes, and stock is only taken when an order is paid. When the team counts the shelves, they enter the counts in the CRM, and those post back to QuickBooks as inventory adjustments. Paid orders go to ShipStation, and tracking returns to the CRM within 15 minutes.
The result: the invoice exists seconds after approval, paid status shows within 15 minutes (usually under one), and in the first 30 days the system carried roughly 106 quotes worth about $391k.
What we find inside QuickBooks.
The audit on the build above found $2,697.15 of sales tax wrongly charged to 15 out-of-state buyers. Nobody had noticed because nobody had a reason to look until the invoices were being built by rule.
16 of 21 invoices sampled had been changed after they went out. That usually means the invoice was built by hand from a quote that was wrong or out of date. Building it from the CRM, and refusing on mismatch, removes the reason to edit.
Off-the-shelf QuickBooks connectors are fine for simple cases. They often copy invoices one way but not payments, match products by name and create duplicates when a name differs, ignore partial payments, or fail silently. When the stakes are real invoices, we write the connection and make it check its own work.
Integrations get tested somewhere. If the test customers and invoices are not removed, they distort reports for months. We clean up before go-live — on one build, 44 test records.
If sales marks deals paid by hand, the pipeline is a story. We count only settled payments, from QuickBooks itself, and recheck daily.
The part nobody mentions: getting connected to Intuit.
A custom QuickBooks Online integration runs as an app registered with Intuit. It connects through OAuth — your QuickBooks administrator signs in once and grants access, and the integration keeps a token it has to refresh on schedule. If the token lapses, the sync stops, so the integration has to watch its own connection and tell someone before it breaks.
Intuit also has its own requirements for apps that go to production, including security and compliance questions. We handle the registration, the OAuth flow, webhook signature checks and token storage, and we walk you through the one step only you can do: granting access from your QuickBooks account.
Questions people ask about QuickBooks integration.
Can you integrate QuickBooks Online with my CRM?
Yes. We have built a two-way Zoho CRM and QuickBooks Online integration that builds invoices from the CRM, syncs payments back within 15 minutes and keeps inventory in step both ways. We also offer HubSpot QuickBooks integration, scoped per project. The approach is the same: decide which system owns each record, then build the connection to check its own work.
What does two-way QuickBooks sync actually mean?
It means data moves in both directions, but each type of record has one owner. Typically the CRM sends customers and invoices to QuickBooks, and QuickBooks sends payments and inventory levels back. Copying every field both ways leads to systems overwriting each other, so a good two-way sync is a clear map of who owns what.
Why not just use a QuickBooks connector from the app marketplace?
For simple needs, a marketplace connector may be enough, and we will tell you if it is. They often fall short on payments coming back, partial payments, item matching, inventory adjustments and error handling. When a mismatch would mean a wrong invoice reaching a customer, a custom connection that refuses and alerts someone is worth it.
How much does a QuickBooks integration cost?
It is scoped per project. Cost depends on which records need to move, which directions, whether inventory and shipping are involved, and how much cleanup the existing data needs. We review how invoices, payments and stock move today and give you a fixed scope before the build begins.
Do you need access to my QuickBooks account?
The integration connects through Intuit's OAuth sign-in, so your QuickBooks administrator grants access once from their own account and can revoke it at any time. We register the app with Intuit, handle the token refresh and webhook signatures, and build monitoring so a lapsed connection is flagged before the sync stops.
Will the integration fix mistakes already in QuickBooks?
We clean up before go-live — duplicate customers, mismatched item names and test records. And we audit what we see. On one build, the audit found 16 of 21 invoices edited after sending and $2,697.15 of sales tax wrongly charged to 15 out-of-state buyers. Correcting past entries is a decision for you and your accountant; we give you the numbers.
QuickBooks is one link in a longer chain — see systems integration for the whole order-to-cash picture. The CRM side of the build above is covered on Zoho CRM integration; for HubSpot pipelines, see HubSpot integration. Taking card payments online? Start with payment integration. Unsure what is broken? A systems audit finds it. Anonymized builds are on our work page.
Ready to stop retyping invoices?
Tell us which CRM you run and how invoices get into QuickBooks today. We will tell you what a proper two-way sync looks like for your business.
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