Create & Manage
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AI Document Creation
Create polished, ready-to-send documents with AI in seconds
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AI Data Extraction
Extract key information from documents quickly and accurately
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Drag & Drop Agreement Builder
Build professional agreements quickly with an intuitive drag-and-drop editor
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Custom Branding & Themes
Customize agreements with your brand, colors, logos, and themes
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Content Locking
Lock approved content to prevent unwanted edits or changes
Send & Automate
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Signing Order Workflow
Set the signing sequence and keep every agreement moving
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Signature Request
Send secure signature requests and collect approvals with ease
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Document Workflow Automations
Automate repetitive document tasks and keep workflows moving
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Bulk Send
Send documents to multiple recipients at once and save valuable time
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Collect Payment
Collect payments directly from agreements for a faster process
Manage & Track
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Audit Trail & Version History
Track every document change, action, and version in one place
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Team Workspace Collaboration
Collaborate on agreements with your team from one shared workspace
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Search & Filter Agreements
Find the right agreement instantly with smart search and filters
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Agreement Activity Tracking
See who opened, viewed, signed, or updated every agreement
By Business Need
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Sales Agreements
Close deals faster with streamlined sales agreements and digital signatures
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HR Documents
Simplify employee documents, onboarding forms, and HR workflows
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Legal Agreements
Create, manage, and sign legal agreements with confidence and ease
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Vendor Agreements
Manage vendor contracts, approvals, and signatures in one simple workflow.
By Industry
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Healthcare
Simplify healthcare agreements, approvals, and signatures with secure digital workflows
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Real Estate
Move property deals forward with faster agreements, approvals, and digital signatures
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Financial Services
Streamline financial agreements, approvals, and signatures with secure digital workflows
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Insurance
Simplify insurance documents, approvals, and signatures with faster digital workflows
By Business Type
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Small Business
Simplify agreements and signatures with easy workflows built for growing businesses
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Startups
Move faster with flexible agreement workflows designed for growing startup teams
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Enterprise
Scale agreement workflows with secure, efficient tools built for enterprise teams
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Agencies
Manage client agreements, approvals, and signatures without slowing down your projects
Past Due Invoice Letter
A Past Due Invoice Letter helps businesses and freelancers politely remind clients about unpaid bills and request payment. Use this free, ready-to-edit template to list the invoice number, amount owed, due date, and payment options clearly. Simply fill in your details, download, and send it in minutes.
What Is a Past Due Invoice Letter and Why Do You Need One?
A Past Due Invoice Letter is a written reminder sent to a client or customer when a payment is late. It usually includes the invoice number, the original due date, the amount owed, any late fees, and how to pay. Many late payments happen simply because a client forgot or the invoice got lost. A clear, professional letter brings the bill back to their attention, helps you get paid faster, and creates a written record if you need to take further action later.
Get Paid Faster Without Damaging Client Relationships
Chasing late payments can feel awkward, and a message that's too harsh can hurt a good client relationship, while one that's too soft may be ignored. Leaving out details like the invoice number or payment link can also slow things down. A ready-made Past Due Invoice Letter Template strikes the right balance with polite but firm wording. It already includes every key detail, so you just add your client's information. This saves time and helps you collect overdue payments while keeping clients happy.
Perfect for Freelancers, Small Businesses, and Accounts Teams
This template is useful for freelancers and consultants, such as designers, writers, and developers, who often deal with late-paying clients. Small business owners, contractors, and service providers can use it to follow up on unpaid jobs. It also helps accounts receivable teams, bookkeepers, and office managers send consistent reminders to many customers. Agencies, landlords, wholesalers, and medical or dental offices can use it too, whether the payment is a few days late or several months overdue.
How to Write a Past Due Invoice Letter Step by Step
Start by adding your business name, contact details, and the date. Include the client's name and company. Next, list the invoice number, the original invoice date, the due date, and the amount owed. Mention any late fees if your terms include them. Clearly explain how to pay, such as bank transfer, card, or an online payment link, and set a new payment deadline. Finally, thank the client, attach a copy of the invoice, and send the letter by email or mail.
How to Use Agreed Templates
Start With the Template
Open the Product Agreement Template in your Agreed workspace and begin with a ready-to-use agreement structure.
Customize Agreement Details
Add or edit product details, responsibilities, pricing, deliverables, timelines, and other terms to match your agreement needs.
Review, Sign & Manage
Send the agreement for review and approval, collect signatures, and manage the completed agreement securely in Agreed.
Frequently Asked Questions.
Everything you need to know about Agreed. Can't find what you're looking for?
Send a friendly reminder a few days after the due date. If there's still no payment, follow up with firmer reminders at 15, 30, and 60 days past due.
Yes, if late fees were included in your contract or invoice terms. Some states limit how much you can charge, so keep your fees reasonable and clearly stated.
Try calling the client to discuss the payment or offer a payment plan. If that doesn't work, you can send a final demand letter, use a collection agency, or file in small claims court.
Email is the fastest and most common choice for early reminders. For seriously overdue invoices, sending a printed letter by certified mail adds a more formal touch and proof of delivery.
Related templates
See More
Letter of Explanation
A Letter of Explanation Template helps you clearly explain a gap, error, or unusual item in your records to a lender, employer, school, or government office. Use this free, ready-to-edit letter to share the facts, give your reason, and attach proof. Fill in the details, download, and sign it in minutes.
Letter of Intent to Sue
A Letter of Intent to Sue Template helps you formally warn another person or business that you plan to take legal action if a problem is not fixed. Use this free, ready-to-edit letter to describe the dispute, state what you want, and set a clear deadline. Fill in the details, download, and sign it in minutes.
Settlement Demand Letter
A Settlement Demand Letter Template helps you formally ask another party to settle a dispute by paying a set amount or taking a specific action. Use this free, ready-to-edit letter to describe the issue, state your settlement terms, and set a clear deadline. Fill in the details, download, and sign it in minutes.
Notice of Default
A Notice of Default Template helps lenders, landlords, and businesses formally tell a borrower or party that they have failed to meet the terms of an agreement. Use this free, ready-to-edit notice to describe the default, state the amount or action needed, and set a clear deadline to fix it. Fill in the details, download, and sign it in minutes.
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