Workflow: Payment Reminders

Estimated time: 20 minutes Difficulty: Intermediate Category: 📋 Administrative Professions: Contractors, Merchants, Freelancers, Small businesses

🌐 Disponible aussi en Français

Use Case

A client hasn’t paid their invoice by the due date. This workflow helps you:

Generate escalating payment reminders (courteous → firm → formal)
Calculate late payment penalties legally
Prepare formal notice before legal action
Track payment reminder history

⚠️ Important: Always comply with applicable commercial law and payment regulations. Late payment penalties must follow legal rates.

Prerequisites

Cowork enabled in Claude Desktop
Unpaid invoice (PDF or data)
Invoice payment terms (due date, penalty clause)
Workspace folder created
Knowledge of applicable late payment rate (legal rate or contractual)

Step-by-Step Instructions

Step 1: Identify overdue invoice

mkdir -p ~/Cowork-Workspace/{input/invoices,output/reminders}

# Copy unpaid invoice
cp ~/Documents/Invoices/INV-2026-042.pdf ~/Cowork-Workspace/input/invoices/

Step 2: Generate first reminder (R1 - Courteous)

From invoice INV-2026-042:
- Client: ABC Contracting Inc
- Amount: $1,500.00
- Due date: January 20, 2026
- Today: February 5, 2026 (15 days overdue)

Generate COURTEOUS payment reminder (R1):

TONE: Professional, understanding, non-confrontational
ASSUMPTION: Oversight or administrative delay

CONTENT:
- Reference invoice number and date
- Recall amount and due date
- Note delay (15 days)
- Request payment confirmation
- Offer payment facilitation if needed
- Provide payment details (bank, check address)
- No late penalty mention at this stage

FORMAT: Professional business letter (PDF)
SUBJECT: "Payment Reminder - Invoice INV-2026-042"

Save to: ~/Cowork-Workspace/output/reminders/INV-2026-042-R1.pdf

Step 3: Evaluate response

If client responds/pays → Case closed

If no response after 7-10 days → Proceed to Step 4

Step 4: Generate second reminder (R2 - Firm)

Invoice INV-2026-042 - No response to R1 sent on 02/05/2026
Today: February 15, 2026 (25 days overdue)

Generate FIRM payment reminder (R2):

TONE: Professional but firmer, reminder of contractual obligations
ASSUMPTION: Client is avoiding

CONTENT:
- "Despite our reminder dated 02/05/2026..."
- Recall invoice details (number, date, amount)
- Note significant delay (25 days)
- Mention contractual payment terms
- Apply late payment penalties per contract terms:
  * Legal rate: [specify applicable rate, e.g., Prime rate + 10%]
  * Late penalties: $1,500.00 × [rate]% × 25 days / 365 = $XX.XX
- Specify new payment deadline: 7 days (02/22/2026)
- Warn: "Failure to comply will result in formal notice"
- Request written confirmation

FORMAT: Registered letter recommended (+ email copy)

Save to: ~/Cowork-Workspace/output/reminders/INV-2026-042-R2.pdf

Step 5: Evaluate response

If client responds/pays → Case closed (invoice late penalties if applicable)

If no response after 7 days → Proceed to Step 6

Step 6: Generate formal notice (R3 - Formal/Legal)

Invoice INV-2026-042 - No response to R2 sent on 02/15/2026
Today: February 25, 2026 (35 days overdue)

Generate FORMAL NOTICE (R3):

TONE: Legal, formal, final warning before legal action
ASSUMPTION: Potential bad faith

CONTENT:
HEADER: "FORMAL NOTICE - FINAL NOTICE BEFORE LEGAL ACTION"

- Recap payment history:
  * Invoice INV-2026-042 issued 01/10/2026, due 01/20/2026
  * R1 sent 02/05/2026 (15 days late) - No response
  * R2 sent 02/15/2026 (25 days late) - No response

- Amount breakdown:
  * Principal: $1,500.00
  * Late penalties (35 days × [rate]%): $XX.XX
  * Collection costs: $YY.YY
  * TOTAL DUE: $1,5XX.XX

- Formal demand:
  * "You are hereby formally notified to pay..."
  * Final deadline: 8 days (03/05/2026)
  * "Failure to comply will result in legal proceedings without further notice"

- Mention:
  * Right to legal collection proceedings
  * Additional legal costs will be added
  * Possible credit reporting/business registry notation

FORMAT: Registered letter with acknowledgment of receipt (mandatory)
Copy via email for traceability

LEGAL REMINDER: Consider consulting attorney before sending if large amount

Save to: ~/Cowork-Workspace/output/reminders/INV-2026-042-R3-FORMAL-NOTICE.pdf

Step 7: Track reminder history

Create tracking log:

Create Excel tracking file:
~/Cowork-Workspace/output/payment-tracking.xlsx

COLUMNS:
| Invoice | Client | Amount | Due Date | Days Late | R1 Date | R2 Date | R3 Date | Status | Amount + Penalties | Notes |

INSERT LINE:
INV-2026-042 | ABC Contracting | $1,500 | 01/20/2026 | 35 | 02/05 | 02/15 | 02/25 | Formal Notice | $1,5XX | Legal action planned if no response by 03/05

STATUS VALUES: R1 Sent / R2 Sent / Formal Notice / Paid / Legal Action / Write-off

Example Prompts

Simple reminder (R1)

Courteous reminder for invoice INV-2026-089
- Client: Johnson Plumbing Services
- Amount: $850.00
- Due: 01/30/2026
- Today: 02/10/2026 (10 days late)

Professional tone, understanding approach
Assume simple oversight
Request payment confirmation
No penalty mention

PDF to: ~/Cowork-Workspace/output/reminders/INV-2026-089-R1.pdf

Batch reminders

Generate R1 reminders for all overdue invoices in:
~/Cowork-Workspace/input/invoices/overdue/

For each invoice:
1. Extract: number, client, amount, due date
2. Calculate days overdue
3. Generate personalized R1
4. Name: [invoice-number]-R1.pdf

Also create tracking Excel summary with all cases

Save to: ~/Cowork-Workspace/output/reminders/batch-[date]/

Multi-language reminder

Invoice INV-2026-075 - International client (Spain)

Generate R2 in SPANISH:
- Original invoice in English
- All amounts in USD
- Spanish business letter conventions
- Applicable late penalty: Spanish legal rate
- Dual format: Spanish + English translation side-by-side

PDF: ~/Cowork-Workspace/output/reminders/INV-2026-075-R2-ES.pdf

Troubleshooting

Client disputes invoice

Cause: Legitimate disagreement on service/amount Solution: Pause reminders, resolve dispute:

Received dispute on INV-2026-042:
Client claims: "Service not completed as agreed"

IMMEDIATE ACTION:
1. STOP all reminders
2. Create dispute case file:
   - Original invoice + quote
   - Client correspondence
   - Service delivery proof (photos, signatures, emails)

RESOLUTION:
Option A: Client is right → Issue credit note, revised invoice
Option B: Client is wrong → Provide evidence, negotiate solution
Option C: Partial dispute → Adjust invoice, payment plan

Do NOT send formal notice during active dispute (bad faith risk)

Uncertain about legal rates

Cause: Penalty rate not specified in contract Solution: Apply default legal rate:

Invoice INV-2026-042 - Contract doesn't specify penalty rate

RESEARCH applicable rate:
- Jurisdiction: [State/Country]
- Default commercial late payment rate: [Legal database search]
- Example (U.S.): Often Prime Rate + 1-3% or statutory rate
- Example (EU): ECB rate + 8 percentage points

Calculate penalties using CONSERVATIVE rate to avoid disputes:
"Penalties calculated per applicable law: [Rate]%"

Recommend: Add penalty clause to future contracts

Client ignores formal notice

Cause: Bad faith or insolvency Solution: Evaluate legal action:

Formal notice sent 02/25/2026 - Deadline 03/05/2026 passed
No response, no payment

DECISION TREE:

Amount > $2,000 AND client solvent?
→ YES → Consult attorney for legal proceedings
→ NO → Evaluate cost/benefit

Client insolvent (bankruptcy/closed)?
→ File proof of claim in insolvency proceedings
→ Or write-off as bad debt (tax deduction)

Client reachable but refusing?
→ Mediation/arbitration (if clause exists)
→ Small claims court (if amount < threshold)
→ Attorney-led collection

IMPORTANT: Document EVERYTHING (all correspondence, delivery confirmations)

Variations

Payment plan proposal

Client responds to R2: "Financial difficulties, cannot pay full amount now"

Generate PAYMENT PLAN proposal:
- Principal: $1,500.00
- Penalties waived IF plan respected
- Plan: 3 monthly payments of $500 (03/15, 04/15, 05/15)
- Terms:
  * First payment = good faith (mandatory)
  * Missed payment = full amount + penalties immediately due
  * Written agreement required (both signatures)

Legal clause: "This plan doesn't constitute debt forgiveness..."

PDF: ~/Cowork-Workspace/output/agreements/INV-2026-042-payment-plan.pdf

Express formal notice

Large amount ($10,000+) or urgent situation

Generate EXPRESS formal notice (5-day deadline):
- Accelerated timeline due to amount
- Mention risk of significant additional costs
- Attorney letterhead (if available)
- State intent to file lien/claim if applicable
- Request immediate contact for resolution

Registered mail + email + courier delivery for traceability

Reminder with settlement offer

Old debt (6+ months), want to close case quickly

Generate R2 with settlement offer:
- Original amount: $1,500.00
- Accumulated penalties: $150.00
- OFFER: "Pay $1,400 within 10 days = full discharge"
- Discount: $250 (penalties waived + $100 goodwill)
- Terms: Payment in full only (no plan), wire transfer only

Benefit: Quick collection vs prolonged dispute
Risk: Sets precedent for other clients

Specify: "One-time exceptional offer, not replicable"

Best Practices

Escalation Timing — Respect delays between levels (R1 +10 days → R2 +7 days → R3)
Always Courteous — Even R3 stays professional, avoid insults/threats
Legal Compliance — Verify applicable rates and collection laws in your jurisdiction
Document Everything — Keep copies of all reminders and delivery confirmations
Pick Your Battles — Legal action costs money; evaluate if worth pursuing
Payment Facilitation — Offer payment plans before formal notice (better recovery)
Registered Mail — R2 and especially R3 should be sent via registered mail
Systematic Tracking — Use spreadsheet to monitor all reminders (avoid forgetting cases)
Attorney Consultation — For amounts >$5,000 or complex situations, consult attorney
Prevention — Add clear payment terms and penalty clauses to contracts

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