QuickBooks Online covers the core of bookkeeping, but most businesses eventually hit a gap: paying bills with approvals, collecting receipts, tracking inventory, or turning ecommerce payouts into clean entries. Add-ons fill those gaps and sync the results into QuickBooks Online.
Each app below was checked on the vendor's own website in September 2026, and each states that it connects to QuickBooks Online. We have grouped them by the job they do. Add only what solves a real problem, because every connected app is one more thing that can post entries to your books.
Not sure which apps you need, or worried an app has made a mess of your file? See our lists of QuickBooks ProAdvisors in Boise and catch-up and QuickBooks cleanup services in Boise.
How we chose
- States on its own website that it connects to QuickBooks Online
- Still sold in September 2026, confirmed on the vendor's site
- Solves a common small business gap in QuickBooks Online on its own
- One pick per job, so the list covers bills, receipts, expenses, payroll, time, inventory, ecommerce, CRM and reporting
- Features described from the vendor's own pages only
BILL
BILL (formerly Bill.com) is accounts payable software. It captures bill details, routes bills through approval workflows you set, and pays vendors by ACH, credit card, check or international wire. BILL says it connects to QuickBooks Online through a sync.
BILL also sells BILL Spend & Expense (formerly Divvy), which provides company cards, budgets and receipt capture with a two-way QuickBooks Online sync.
- Approval workflows for bills
- ACH, card, check and international wire payments
- QuickBooks Online sync
- Separate Spend & Expense product for company cards
Worth knowing
- Pricing isn't published on the product pages
- Most useful once you have enough bills that approvals matter
Dext
Dext collects receipts, invoices and statements by mobile scan, email or upload, extracts the supplier, line items and due dates, and syncs the results to accounting software including QuickBooks Online. It keeps the original documents on file.
Dext sells plans for businesses and separate plans for accounting and bookkeeping firms, so your bookkeeper may already use it.
- Capture by phone, email or upload
- Extracts supplier and line-item details
- Syncs to QuickBooks Online, Xero and Sage
- Stores original documents
Worth knowing
- Business plans are limited by the number of documents
- Someone still needs to review categories before items publish
Expensify
Expensify's Collect plan, aimed at small businesses, includes receipt scanning, reimbursements, corporate card management, expense approvals and QuickBooks and Xero integrations. A free plan lets employees scan receipts, track mileage and submit expense reports.
The Control plan adds multiple approval flows, custom expense rules and integrations with larger systems.
- Unlimited receipt scanning
- Mileage tracking
- Expense approvals and ACH reimbursement
- QuickBooks Online integration on Collect
Worth knowing
- Priced per member, so cost grows with headcount
- Overkill if only the owner has expenses
QuickBooks Time
QuickBooks Time is Intuit's time tracking product. Workers clock in from a mobile app, geofences remind them to clock in or out at a job site, and managers build schedules by job or shift.
Time data syncs to QuickBooks for payroll and invoicing. Intuit lists Premium and Elite plans and a 30-day free trial.
- Mobile clock-in with job-site geofencing
- Scheduling included on all plans
- Syncs time to payroll and invoicing
- 30-day free trial
Worth knowing
- Priced per worker, so cost grows with your crew
- Some QuickBooks Payroll bundles already include time tracking, so check before buying it separately
Gusto
Gusto is full-service payroll with benefits and HR tools. Its QuickBooks Online integration posts payroll journal entries mapped to your own chart of accounts, with options for how contractor payments and taxes are grouped.
It suits businesses that want Gusto's plans or benefits but keep their books in QuickBooks Online. See our payroll software list for more options.
- Payroll journal entries synced to QuickBooks Online
- Maps payroll to your chart of accounts
- Can split entries by class or department
- Unlimited payroll runs on every employee plan
Worth knowing
- Set the account mapping carefully at the start; defaults may not fit your chart of accounts
- Avoid syncing payrolls into periods you have already closed
SOS Inventory
SOS Inventory adds inventory, order management and light manufacturing to QuickBooks Online. It handles serial and lot numbers, barcodes, sales and purchase orders, partial shipping and receiving, assemblies with bills of materials, and multiple locations.
It syncs directly with QuickBooks Online and offers a free two-week trial.
- Serial and lot tracking
- Sales orders, purchase orders and partial shipments
- Assemblies and bills of materials
- Multi-location inventory
Worth knowing
- A real step up in complexity; plan the setup before switching on
- Additional users cost extra
A2X
A2X turns sales-channel payouts from Amazon, Shopify, eBay, Etsy, Walmart and PayPal into summarized entries that reconcile in QuickBooks Online, Xero, Sage or NetSuite.
Instead of each order landing in your books, you get one organized summary per payout that matches the deposit in your bank.
- Supports Amazon, Shopify, eBay, Etsy, Walmart and PayPal
- Summaries that match each payout deposit
- Works with QuickBooks Online
- Handles multi-channel sellers
Worth knowing
- Only useful if you sell through these channels
- Mapping needs care at setup so fees and sales tax land in the right accounts
Method CRM
Method is a customizable CRM built around QuickBooks, with a real-time two-way sync to QuickBooks Online and Desktop. It covers leads, estimates with online approval, invoicing with online payments, work orders and a customer portal.
Method says pricing depends on the number of users and features, and offers a free trial.
- Two-way QuickBooks Online sync
- Estimates with online approval
- Customer portal
- Work orders, scheduling and a mobile app
Worth knowing
- Pricing isn't shown on the home page
- Customization takes setup time
Fathom
Fathom connects to QuickBooks Online and produces financial analysis, custom management reports, KPI dashboards and three-way forecasts covering profit and loss, balance sheet and cash flow. It can also consolidate several companies.
Fathom also connects to Xero, QuickBooks Desktop, Excel and Google Sheets, so reports can combine more than one source.
- Custom management reports
- KPI dashboards
- Three-way forecasting
- Multi-company consolidation
Worth knowing
- Reports are only as good as the books behind them
- Pricing is on a separate page; check it before committing
Float
Float builds cash flow forecasts from QuickBooks Online or Xero data, pulling reconciled bank balances, invoices and bills. It offers weekly, 13-week and monthly views and scenario planning to test decisions before you make them.
Data syncs every 24 hours or on demand, and Float offers a 14-day free trial with no credit card required.
- Weekly, 13-week and monthly forecast views
- What-if scenarios
- Shows when invoices and bills are due
- 14-day free trial
Worth knowing
- Relies on reconciled books; stale data means a stale forecast
- Pricing isn't shown on the home page
How to choose add-ons
- Start with the problem, not the app. Name the task that takes too long or keeps going wrong.
- Check what QuickBooks Online already does on your plan. Plus, for example, includes project profitability and inventory tracking.
- Ask your bookkeeper first. They may already use an app for the same job and know its quirks.
- Test on a trial and review what the app posts to your books before you rely on it.
- Keep a written list of connected apps and who owns each login.
What can go wrong
Every connected app can create transactions in QuickBooks Online. When two apps record the same sale, or an app's default accounts don't match your chart of accounts, income and expenses get doubled or misplaced. These problems are a common reason businesses need a cleanup.
Danielson Bookkeeping offers QuickBooks Online setup, cleanup, catch-up and staff training with written procedures on its QuickBooks services page. Carey Danielson is a QuickBooks Online Advanced ProAdvisor.
