Most small businesses have six-figure accounts receivable balances that could be cash in the bank inside two weeks. The blocker is not that clients will not pay. It is that nobody is running a disciplined follow-up process.
Cash recovery does not require a collections department. It requires a structured sprint: identify overdue invoices, understand each customer's context, send the right message at the right cadence, follow through. Connecting QuickBooks, Gmail, and Drive to Claude through CorpusIQ makes all four steps fast enough to run in an afternoon.
Why AR stays stuck
Three reasons.
First, AR is invisible. The P&L shows revenue when invoiced. The business feels like it is earning. Nobody is watching the cash conversion cycle.
Second, collections feel uncomfortable. The person sending the email is often the same person who has to maintain the client relationship. The email gets delayed, softened, or skipped.
Third, follow-up is ad-hoc. Somebody nudges a few customers one week, then forgets for a month. The customers who get nudged pay. The ones who do not, do not.
Money that should be in the bank sits in QuickBooks as an open invoice. Multiply by 30 clients and the working capital impact is real.
The 14-day recovery sprint
A structured cash recovery sprint looks like this.
Day 0: inventory. Pull every overdue invoice. Segment by age: 0-30, 30-60, 60-90, 90+ days past due.
Day 1-2: context gathering. For each overdue customer, look up payment history, contract terms, recent email threads, and any disputes. This is where Claude saves the most time.
Day 3-5: first-touch follow-up. Personalized email to every overdue account. Not a mass template. A short message that acknowledges the relationship and asks for payment or an update.
Day 6-10: response handling. Replies come in. Some pay immediately. Some ask for payment plans. Some raise disputes. Handle each.
Day 11-14: escalation. Unresponsive accounts get a second message, this one with a clear next step (payment plan, late fee, account pause).
By day 14, the majority of the under-90-day AR has either been paid, scheduled, or escalated. That is the win.
The Claude workflow per customer
For each overdue customer, ask Claude:
Pull the open AR balance for [CUSTOMER NAME] from QuickBooks, including invoice
numbers, amounts, and original due dates.
Pull the last 12 months of payment history for this customer. Are they normally
on-time, late, or inconsistent?
Find the most recent contract or MSA for this customer in Drive. Summarize
the payment terms.
Search Gmail for the last 90 days of emails with this customer. Flag any
mention of payment, disputes, or service issues.
Based on all of the above, draft a follow-up email. Tone should match their
history: firm for chronic late payers, gentle for normally-prompt customers
who have one overdue invoice. Include specific invoice numbers and amounts.
Claude synthesizes across four sources and produces a draft. You read, adjust, send. Five minutes per customer instead of thirty.
How to set it up
- Sign up at corpusiq.io. Solo $29.95/month covers QuickBooks, Gmail, and Drive.
- Connect QuickBooks Online (for AR), Google Workspace (for Gmail and Drive).
- Add CorpusIQ MCP to Claude.
What Claude writes well, what needs your judgment
Claude writes good first drafts. It is weaker at three things.
Reading the relationship. If a customer is a strategic account where payment is stuck in their AP process (not a refusal to pay), the email needs a different tone than what Claude defaults to. Adjust.
Knowing when to escalate. If a customer has a 120-day-past-due balance and has ignored three emails, the next step is probably a call or a letter, not another email. Claude can draft the letter; you decide when the moment is.
Catching legal and contractual nuance. Some contracts have specific late payment clauses, dispute resolution steps, or arbitration requirements. Claude surfaces the contract text; you interpret it.
The workflow is force-multiplier, not replacement. The multiplier is significant: a solo ops lead can run a cash recovery sprint across 30 customers in a week, something that used to require three weeks.
Measuring the impact
Track two numbers before and after the sprint.
Days sales outstanding (DSO). Total AR divided by average daily revenue. A 14-day sprint should drop DSO by 5-15%.
Percentage of AR over 60 days past due. This should compress meaningfully. If it does not, you have discovery work to do: disputes you did not know about, customers in genuine financial trouble, or invoicing errors on your side.
See also
FAQ
How much of our AR is realistically recoverable?
Depends on age. AR under 30 days past due is 90%+ recoverable with follow-up. 60-90 days past due drops to 70%. Over 120 days is under 50% without a collections process.
Does Claude draft the collection emails?
Yes, drafts are optional. You can ask Claude to prepare a follow-up for each overdue customer, personalized by payment history. You review and send.
Is this legal? AR collection has regulations.
This workflow is business-to-business collection of invoiced amounts, which is far less regulated than consumer collection. Still, never make threats or claims you cannot back up, and follow your jurisdiction's rules.