The work is done. The invoice was sent. The due date passed. Now what?
Chasing late payments is uncomfortable. You don't want to damage the relationship, but you also need to get paid. The good news: most late payments aren't malicious. People forget, accounting departments move slowly, or the invoice got lost in someone's inbox.
This is how to collect what you're owed while keeping the relationship intact.
Why Invoices Go Unpaid
Before chasing payment, understand why it's late.
Most of the time, they just forgot. Your email got buried or filtered to spam, or it went to the wrong person. A quick reminder usually fixes it. Other times it's a cash flow problem on their end—they want to pay but can't yet. Sometimes they're unhappy with the work and avoiding the conversation.
With corporate clients, slow approval chains are common. And occasionally the invoice itself has errors—wrong amount, missing PO number, incorrect details—which stalls everything.
Your approach should vary based on the likely reason. A friendly reminder works for forgetful clients; it won't work if they're disputing the work.
The Collection Timeline
Don't wait until an invoice is 90 days late to take action. Follow a systematic escalation:
Day 1 (Due Date)
If payment hasn't arrived, send a brief, friendly reminder. Assume they forgot.
Day 7 (1 Week Late)
Send a second reminder. A bit more direct, but still professional.
Day 14 (2 Weeks Late)
Request confirmation they received the invoice. Ask if there are any issues.
Day 30 (1 Month Late)
Formal request. Mention late fees if applicable. Consider a phone call.
Day 45-60
Final notice before escalation. Clearly state consequences.
Day 60+ (2+ Months Late)
Escalation: collections agency, small claims court, or ceasing future work.
Email Templates for Each Stage
First Reminder (Friendly)
Subject: Quick reminder: Invoice #[NUMBER] due
Hi [Name],
Hope you're doing well! I wanted to send a quick reminder that Invoice #[NUMBER] for [amount] was due on [date].
If you've already sent payment, please disregard this message. If not, I've attached the invoice again for convenience.
Let me know if you have any questions.
Best,
[Your name]
Second Notice (Direct)
Subject: Following up: Invoice #[NUMBER] - [X] days past due
Hi [Name],
I'm following up on Invoice #[NUMBER] for [amount], which is now [X] days past due.
Could you let me know the status? If there's an issue with the invoice or the work, I'm happy to discuss.
Payment can be made via [payment methods]. I've attached the invoice again.
Thanks,
[Your name]
Formal Request (30 Days)
Subject: Action required: Invoice #[NUMBER] - 30 days overdue
Dear [Name],
Invoice #[NUMBER] for [amount] is now 30 days past due. I've sent previous reminders on [dates] without response.
Per our agreement, a late fee of [X%] applies to balances over 30 days, bringing the current total to [new amount].
Please remit payment within 7 days or contact me to discuss payment arrangements.
Regards,
[Your name]
Final Notice
Subject: FINAL NOTICE: Invoice #[NUMBER] - Immediate payment required
Dear [Name],
This is my final notice regarding Invoice #[NUMBER] for [amount], now [X] days overdue.
If payment is not received within 10 business days, I will be forced to:
- Suspend any ongoing work
- Refer the account to a collections agency
- Pursue legal remedies including small claims court
I would prefer to resolve this directly. Please remit payment or contact me immediately to discuss options.
Regards,
[Your name]
When to Pick Up the Phone
Emails are easy to ignore. Phone calls aren't.
Call when:
- You haven't received any response to emails
- The invoice is over 30 days late
- The amount is significant
- You suspect there's an issue they're not mentioning
Keep the call professional and solution-focused:
- "I wanted to check in about Invoice #[NUMBER]. I haven't heard back on my emails."
- "Is there anything preventing payment that we can address?"
- "Can we set up a payment plan if the full amount is difficult right now?"
Often, a phone call resolves in five minutes what emails couldn't in five weeks.
Late Fees: Should You Charge Them?
Late fees incentivize timely payment. But they only work if:
- Disclosed upfront — Include late fee policy in contracts and on invoices
- Applied consistently — Don't pick and choose who pays late fees
- Reasonable — 1-2% per month (12-24% annual) is standard; higher may be unenforceable
Common approaches:
- Percentage-based — 1.5% per month on overdue balance
- Flat fee — $25-50 per late invoice
- Hybrid — Flat fee after grace period, then percentage
You can always waive late fees for good clients or first offenses. Having them in your terms gives you leverage.
When to Escalate
Collections Agency
Consider after 60-90 days with no response or payment plan.
- Agencies typically take 25-50% of collected amount
- Best for amounts over $500 where you've exhausted other options
- You lose control of the client relationship
- Provide all documentation: invoices, contract, communication records
Small Claims Court
Viable for amounts under your state's limit (typically $5,000-$25,000).
- Filing fees are low ($30-100 in most states)
- No lawyer required
- You'll need documentation: contract, invoices, delivery proof, communications
- Winning doesn't guarantee collection, but it does get you a judgment
Attorney Demand Letter
Sometimes a letter on legal letterhead prompts payment.
- Cost: $200-500 for a demand letter
- Often effective before actual litigation
- Shows you're serious
Preventing Late Payments
The best collection strategy is prevention:
Before Starting Work
Check references for larger projects. Require 25-50% upfront from new clients or on big projects. Get payment terms in writing before work begins, and for larger engagements, bill in phases as you complete milestones.
When Invoicing
Invoice the same day you deliver—don't let it sit. Send it to accounts payable, not just your contact. Include PO numbers, correct legal names, and clear line-item descriptions. And make payment easy: offer multiple methods, include payment links, add a QR code if you can.
During Payment Period
- Send reminders before due date — "Payment due in 3 days" is friendlier than "Payment overdue"
- Track payment status — Know what's outstanding before it's late
Tracking Outstanding Invoices
You can't collect what you don't track. Know at all times:
- What invoices are unpaid
- How many days overdue each one is
- Total outstanding balance
- Which clients have patterns of late payment
Manual tracking in spreadsheets works until it doesn't. Invoicing software automates this—marking due dates, flagging overdue invoices, and showing aging reports. IronBase does all of this in one place if you want something simple.
Knowing When to Walk Away
Sometimes you won't collect. Consider writing off a debt when:
- The amount is less than the cost to pursue it
- The client is bankrupt or out of business
- You've exhausted all reasonable options
- Continuing to pursue causes more stress than the money is worth
Document the write-off for tax purposes—you may be able to deduct bad debt.
What works
Start with a friendly reminder—most late payments are just oversights. If emails go unanswered, pick up the phone. Follow a clear escalation path so nothing slips through the cracks, and if you've heard nothing after 60-90 days, collections or small claims are reasonable next steps. But prevention beats collection every time: take deposits, spell out payment terms, invoice immediately, and track what's outstanding.
Getting paid shouldn't be harder than doing the work.