Xero 
FreshBooks 
Wave DueDrop + QuickBooks
DueDrop reads your invoices in QuickBooks and the email thread you already have with each client, then drafts the next follow-up in your voice. You approve it, it sends from your own inbox, and it pauses the moment they reply.
QuickBooks 
DueDrop Three things that change the day you connect QuickBooks.
Overdue invoices get a follow-up drafted, not a template sent.
DueDrop watches QuickBooks for invoices that slip past due and drafts the next follow-up from the email thread you already have with that client. If you also want a softer heads-up before the due date, set a separate cadence for that.
Client context pulls automatically
Name, amount, invoice number, due date, and the prior email thread — all pulled in before the draft is written, so you approve a finished follow-up instead of filling in blanks.
One source of truth — yours
What's in QuickBooks is what DueDrop acts on. The second you mark an invoice paid there, queued follow-ups stop here. And when the client replies, the cadence for that invoice pauses whether the invoice is paid yet or not.
Three steps. Then DueDrop drafts, you approve.
Connect once. DueDrop watches for invoices that need a nudge and has the draft waiting for you.
Sign in with QuickBooks.
Standard OAuth — you stay on QuickBooks's own authorization screen. We never see your password, and you can revoke access in one click from your QuickBooks account.
+ DueDrop is requesting access to your QuickBooks account
- Read-only access to your invoice list and payment status
- Read customer names, emails, and invoice history
- No access to banking, payroll, or expense data
- No write access — we never modify invoices or records
DueDrop stays in sync with QuickBooks in real time.
Create an invoice, update a due date, or mark one paid — DueDrop sees it within seconds, without you refreshing, resyncing, or doing anything else. The hour an invoice ages past due, the draft follow-up is ready for your review. Add a pre-due heads-up cadence too if you want one.
When an invoice goes overdue, DueDrop drafts the follow-up. You approve it.
The draft matches your tone, fills in the client's name and invoice details from QuickBooks, and waits for you. Approve it and it sends from your connected email. Once you trust it for a client, switch that client to auto-send and skip the approval step.
Hey Marcus,
Just circling back on the March invoice — wanted to make sure it didn't slip through the cracks on your end.
Could you let me know when it's scheduled to go out? Happy to resend anything you need.
Thanks,
Sarah
Minimal access, always in your control.
- Read-only, always.
DueDrop never creates, changes, or deletes anything in your QuickBooks account.
- We never see your password.
When you click Allow, QuickBooks hands us a limited access token — not your login credentials.
- Encrypted end to end.
Bank-grade encryption in transit and in our database.
- Disconnect whenever.
One click in your QuickBooks account cuts us off completely. Cancel DueDrop and we delete your data — no lingering copies.
- Plan support.
Works with every paid QuickBooks Online plan (Simple Start and up).
- → Read-only access to your invoice list and payment status
- → Read customer names, emails, and invoice history
- → No access to banking, payroll, or expense data
- → No write access — we never modify invoices or records
About the QuickBooks integration specifically.
Does DueDrop work with QuickBooks Desktop?
What happens when I mark an invoice paid in QuickBooks?
Can I connect multiple QuickBooks companies?
Does DueDrop write anything back to QuickBooks?
What if QuickBooks is down or slow?
Your next overdue invoice doesn't need another template.
Connect your accounting system and your inbox. DueDrop will draft the first follow-up from the conversation you already have with that client — and nothing sends until you approve it.
Draft my first follow-up