A contract is only as good as the follow-through behind it. When the other party misses a deadline, withholds payment, or flat-out walks away from their obligations, that sinking feeling in your stomach is real. So is your right to do something about it.
A breach of contract notice is often the first formal step, and sometimes the last one you need. A well-written notice signals that you’re serious, creates a paper trail, and gives the other party a clear window to make things right before things escalate. Skip it, and you could weaken your legal position before you’ve even started.
Breach of Contract Notice Samples
The notices below cover a range of situations, from unpaid invoices to vendor failures to employment issues. Adapt the names and figures to your situation, and have a lawyer review anything before it goes out in a high-stakes dispute.
1. Unpaid Invoice After Agreed Payment Terms
May 15, 2025
Hartwell Supply Co.
4802 Commerce Drive
Denver, CO 80202
Dear Mr. Hartwell,
This notice is to inform you that your company is in breach of the Service Agreement dated January 10, 2025, between Hartwell Supply Co. and Meridian Consulting Group.
Under Section 4.2 of that agreement, payment of $18,500 was due no later than April 30, 2025. As of today, no payment has been received, despite a reminder sent on May 5, 2025.
You are hereby given 10 business days from the date of this letter to remit the full outstanding amount. Failure to do so will leave us no choice but to pursue all available legal remedies, including filing a civil claim for the outstanding balance plus interest and reasonable attorney’s fees as provided under Section 9 of the agreement.
Please confirm receipt of this notice and your intended course of action in writing.
Sincerely,
Patricia Nolan
Managing Director, Meridian Consulting Group
pnolan@meridiancg.com
(303) 555-0147
2. Contractor Missed Project Deadline
June 3, 2025
BlueLine Renovations LLC
1199 Oakwood Boulevard
Atlanta, GA 30307
Attention: Marcus Reid, Owner
RE: Breach of Project Completion Terms
This letter serves as formal notice that BlueLine Renovations LLC is in breach of the Residential Renovation Contract signed on February 14, 2025.
Per Section 3 of the agreement, all renovation work at 520 Fernwood Court, Atlanta, GA 30307 was to be substantially completed by May 16, 2025. As of the date of this letter, the kitchen and master bathroom remain unfinished, and no crew has been on-site for 19 consecutive days.
You are required to either resume full work immediately and provide a revised written completion schedule within 5 business days, or notify us in writing of your intent to terminate the contract. Should neither action occur, we will exercise our right under Section 11 to engage a substitute contractor and seek recovery of all additional costs from you.
Sincerely,
Donna and Elliot Marsh
520 Fernwood Court
Atlanta, GA 30307
(404) 555-0289
3. Vendor Delivered Defective Goods
July 22, 2025
PrimePack Suppliers Inc.
3300 Industrial Parkway
Houston, TX 77002
Dear Ms. Castillo,
We are writing to formally notify you that PrimePack Suppliers Inc. is in breach of Purchase Order #PP-2025-0441, executed on June 1, 2025, between PrimePack Suppliers Inc. and Coastal Goods Distribution.
The order specified 4,000 units of Model PT-7 tamper-evident packaging, meeting ASTM D4169 performance standards. The shipment received on July 10, 2025 contained units that failed internal quality testing, with seal integrity falling well below the contracted specification. Full documentation of the defects, including lab results, is attached.
We are requesting a full replacement shipment meeting the contracted specifications within 15 calendar days, at no additional cost. If a compliant replacement is not received within that window, we will pursue a full refund of the $31,200 paid and reserve the right to claim damages for disruption to our supply chain.
Please acknowledge receipt of this notice within 48 hours.
Regards,
Jerome Okafor
Procurement Manager, Coastal Goods Distribution
jokafor@coastalgoods.com
(713) 555-0374
4. Employee Violated Non-Compete Clause
August 8, 2025
Mr. Caleb Thornton
217 Maple Ridge Lane
Austin, TX 78704
Dear Mr. Thornton,
This letter constitutes formal notice of your breach of the Non-Compete and Confidentiality Agreement dated March 3, 2022, which you signed as a condition of your employment with Apex Digital Solutions.
Section 2 of that agreement prohibits you from working for any direct competitor within a 50-mile radius of Austin, TX, for a period of 18 months following the termination of your employment. Your employment ended on June 14, 2025. We have confirmed that you began working with Vertex Analytics LLC, a direct competitor, on July 28, 2025, well within the restricted period.
You are hereby directed to cease all employment and consulting activity with Vertex Analytics LLC immediately. Failure to comply within 5 business days will result in Apex Digital Solutions seeking injunctive relief and pursuing all available damages under the terms of the signed agreement.
This matter has been referred to our legal counsel. Direct all further communications to:
Sandra Liu, Esq.
Apex Legal, 900 Congress Ave, Suite 400, Austin, TX 78701
sliu@apexlegal.com
Sincerely,
Robert Hines
CEO, Apex Digital Solutions
5. Landlord Breach for Failing to Make Repairs
September 1, 2025
Mr. Victor Ramos
Ramos Property Management
801 Hillcrest Drive, Suite 2
Phoenix, AZ 85013
Dear Mr. Ramos,
This letter is formal written notice that you are in breach of the Residential Lease Agreement dated September 1, 2024, covering the property at 144 Desert Rose Avenue, Apartment 6B, Phoenix, AZ 85021.
Section 14 of the lease requires you to maintain the premises in a habitable condition and to address repair requests within 14 days of written notice. On July 30, 2025, written notice was submitted via email identifying a non-functioning HVAC unit, a persistent roof leak in the second bedroom, and a broken exterior door lock. As of today, 33 days later, none of these issues has been addressed.
Under Arizona Revised Statutes Section 33-1361, if the breach is not remedied within 10 days of this notice, I am entitled to terminate the lease without further obligation, or to have repairs made and deduct the cost from rent. I am prepared to exercise either option.
Please confirm in writing that repairs will begin no later than September 11, 2025.
Regards,
Keisha Monroe
144 Desert Rose Avenue, Apt 6B
Phoenix, AZ 85021
(602) 555-0512
6. Software Development Contract Breach
October 14, 2025
Codewright Labs Inc.
2250 Tech Hub Blvd, Suite 300
Seattle, WA 98101
Attention: Priya Shah, CEO
RE: Material Breach of Software Development Agreement
This notice is issued under the Software Development Agreement (“Agreement”) dated April 5, 2025, between Codewright Labs Inc. and Finbridge Financial Corp.
Under Section 6 of the Agreement, a fully functional MVP of the loan-processing module was to be delivered by September 30, 2025. As of this date, no deliverable has been received. Repeated requests for status updates sent on October 1, 5, and 10 went unanswered.
This constitutes a material breach. Finbridge Financial Corp. has suffered measurable delays in its product launch schedule, with quantifiable costs that we are prepared to document.
You have 7 business days to either deliver a functional MVP meeting the agreed specifications or engage in written discussion of a mutually agreed remediation plan. Absent either, Finbridge Financial Corp. will terminate the Agreement for cause, demand a full refund of the $85,000 already paid, and pursue all available legal remedies.
Regards,
Alan Forde
CTO, Finbridge Financial Corp.
aforde@finbridge.com
(206) 555-0661
7. Breach of a Settlement Agreement
November 4, 2025
Ms. Diane Kolowski
88 Birchwood Place
Cleveland, OH 44102
Dear Ms. Kolowski,
This letter serves as written notice that you are in breach of the Settlement Agreement (“Agreement”) signed by both parties on August 20, 2025, in connection with Case No. 2025-CV-04471, Cuyahoga County Court of Common Pleas.
Under Paragraph 3 of the Agreement, you were required to make three monthly payments of $3,500 beginning October 1, 2025. The October and November payments have not been received.
You have 10 calendar days from the date of this letter to remit the two outstanding payments totaling $7,000. If payment is not received, we will file a motion to enforce the settlement agreement with the court and seek any additional remedies available, including recovery of legal costs.
Please direct any response or payment to the address below.
Sincerely,
Thomas Brecker, Esq.
Brecker & Walsh LLP
1200 Euclid Avenue, Suite 700
Cleveland, OH 44115
tbrecker@breckerwalsh.com
(216) 555-0823
8. Breach by a Business Partner
December 9, 2025
Mr. Samuel Griffith
Griffith & Partners LLC
500 Wacker Drive, 18th Floor
Chicago, IL 60606
Dear Sam,
This letter constitutes formal notice of a material breach of the Partnership Agreement dated January 15, 2024, between Griffith & Partners LLC and Crestview Ventures Group.
Section 7.4 of the Agreement requires each party to contribute a minimum of 20 hours per month to active client development activities and to disclose any outside business engagements that could create a conflict of interest. Our records indicate that you have not met the minimum contribution requirement since September 2025, and we have recently become aware that you entered into a separate consulting arrangement with TerraLink Capital without disclosing it to us, in direct violation of Section 12.
We are requesting a meeting within 10 business days to discuss a resolution. If no resolution is reached, we will exercise our rights under Section 19 to initiate a buyout and seek compensation for losses attributable to the breach.
Please respond in writing by December 19, 2025.
Sincerely,
Natalie Cross
Managing Partner, Crestview Ventures Group
ncross@crestviewventures.com
(312) 555-0940
9. Freelancer Failed to Deliver Agreed Work
January 6, 2026
Ms. Rina Johal
freelancerrina.design@gmail.com
Dear Rina,
This is formal notice that you are in breach of the Freelance Design Contract dated October 28, 2025, between you and Stonegate Media Group.
Under the contract, you agreed to deliver five fully designed brand identity files, including logos, a style guide, and social media templates, by December 15, 2025. Payment of $4,200 was made in full on November 1, 2025. As of today, only a preliminary logo draft has been submitted, and your last communication was on December 3, 2025.
You are required to deliver all outstanding files within 7 calendar days of this notice. If the work is not delivered by January 13, 2026, we will demand a full refund and report the matter to the freelance platform through which you were engaged.
Please confirm receipt of this notice.
Regards,
Leo Barton
Creative Director, Stonegate Media Group
lbarton@stonegatemedia.com
(415) 555-1047
10. Breach of a Real Estate Purchase Agreement
February 18, 2026
Mr. and Mrs. Harold Finch
330 Lakeview Terrace
Nashville, TN 37204
Dear Mr. and Mrs. Finch,
This letter is written notice that you are in breach of the Real Estate Purchase Agreement dated December 30, 2025, for the property located at 1102 Magnolia Drive, Nashville, TN 37211.
Per Section 8 of the Agreement, the closing date was set for February 10, 2026. As of today, no request to extend the closing date was submitted, no closing occurred, and your agent has not responded to communications from our agent, Sarah Dempsey, since February 7, 2026.
This is a material breach of contract. We have suffered direct costs including continued mortgage payments, property tax obligations, and staging costs totaling approximately $4,800 to date. You have 5 business days to either close on the property or provide written notice of a proposed resolution.
Absent a satisfactory response, we will pursue all remedies available under Tennessee law, including retention of the earnest money deposit of $22,000 and a claim for additional damages.
Sincerely,
Craig and Olivia Sutton
c/o James Whitfield, Esq.
Whitfield Real Estate Law
(615) 555-1182
11. Supplier Breach for Late Delivery
March 3, 2026
TrueForm Manufacturing Ltd.
7700 Riverside Industrial Park
Detroit, MI 48210
Attention: Operations Manager
RE: Breach of Supply Agreement, Purchase Order #TF-2026-0088
This notice is issued in connection with the Supply Agreement dated November 12, 2025, and Purchase Order #TF-2026-0088, executed between TrueForm Manufacturing Ltd. and Harmon Retail Group.
The order for 12,000 units of aluminum shelving brackets was confirmed with a delivery date of February 14, 2026. That date has now passed by 17 days, and delivery has not been made. We have been forced to halt installation at three store locations, resulting in daily operational losses.
Full delivery of the outstanding order is required within 5 business days. In addition, we reserve the right to seek compensation for losses directly caused by this delay. Failure to deliver will result in cancellation of this order and all future purchase orders, along with a formal claim for damages.
Regards,
Faye Hollander
VP of Supply Chain, Harmon Retail Group
fhollander@harmonretail.com
(313) 555-1224
12. Breach of a Consulting Agreement
March 27, 2026
Brightpath Consulting Group
900 Fifth Avenue, Suite 1100
New York, NY 10001
Attention: Owen Daley, Principal Consultant
Dear Mr. Daley,
This letter is formal notification that Brightpath Consulting Group is in breach of the Consulting Services Agreement (“Agreement”) dated September 15, 2025, between Brightpath Consulting Group and Vesta Health Systems.
Section 5 of the Agreement required Brightpath to submit monthly progress reports by the 10th of each month and to maintain weekly check-ins with our operations lead. No reports have been received for February or March 2026, and no check-in meetings have occurred since January 31, 2026. Repeated emails have gone unanswered.
You have 7 business days to submit the two overdue reports and confirm a schedule for the remaining engagements under the contract. If we do not hear from you by April 3, 2026, we will treat the Agreement as terminated for cause and pursue recovery of fees paid for the unfulfilled portion of the engagement.
Regards,
Margaret Osei
COO, Vesta Health Systems
mosei@vestahealth.com
(212) 555-1351
13. Breach of a Lease by a Commercial Tenant
April 10, 2026
Beacon Street Café LLC
Attention: Jordan Weiss, Owner
1544 Beacon Street
Boston, MA 02115
Dear Mr. Weiss,
This letter is formal written notice that Beacon Street Café LLC is in breach of the Commercial Lease Agreement dated March 1, 2023, for the premises at 1544 Beacon Street, Boston, MA 02115.
Section 6 of the lease requires rent to be paid in full on the first of each month. Rent for February and March 2026, totaling $9,400, remains unpaid as of today. Prior written reminders were sent on March 6, 2026, and March 28, 2026, with no response or payment.
You are required to remit the full outstanding balance of $9,400 within 10 calendar days of this notice. Failure to do so will result in the commencement of eviction proceedings under Massachusetts General Laws Chapter 239, along with a claim for all unpaid rent, late fees, and costs as specified in Section 17 of the lease.
Sincerely,
Claudia Merritt
Property Manager, Harborview Properties LLC
cmerritt@harborviewprops.com
(617) 555-1472
14. Breach of a Marketing Services Contract
May 2, 2026
Redline Creative Agency
2401 Westside Avenue, Suite 200
Los Angeles, CA 90016
Attention: Trish Alvarez, Account Director
Dear Ms. Alvarez,
This notice formally advises you that Redline Creative Agency is in breach of the Marketing Services Agreement dated August 1, 2025, between Redline Creative Agency and Luxe Home Goods Inc.
Under Sections 3 and 4 of the Agreement, Redline was contracted to manage our paid digital ad campaigns across Google and Meta, with a guaranteed monthly ad spend of $25,000 and biweekly performance reports. For the months of March and April 2026, ad spend fell to $9,200 and $11,400 respectively, and no performance reports were delivered for either month. These shortfalls directly contradict the agreed scope of work and have measurably impacted our seasonal sales performance.
We are requesting written confirmation within 5 business days that Redline will fulfill the remaining term of the contract as agreed, along with a written explanation of the shortfalls. If no satisfactory response is received, we will terminate the Agreement for cause and seek a refund of retainer fees paid during the period of non-performance.
Regards,
Anthony Liu
VP of Marketing, Luxe Home Goods Inc.
aliu@luxehomegoods.com
(310) 555-1599
15. Breach of a Non-Disclosure Agreement
June 18, 2026
Ms. Hana Weston
14 Ridgemont Circle
Portland, OR 97201
Dear Ms. Weston,
This letter serves as formal notice that you have materially breached the Non-Disclosure Agreement (“NDA”) signed on May 10, 2023, between you and Stonebrook Technologies Inc.
Section 2 of the NDA prohibits disclosure of any proprietary product information, client data, or internal processes to any third party, during or after your engagement with Stonebrook. On June 5, 2026, we became aware that confidential details regarding our unreleased software product, including feature specifications and pricing strategy, were shared by you with a competing firm, Greenleaf Systems.
The disclosure appears to have occurred through direct written communications, copies of which are in our possession. This breach has caused and continues to cause material harm to Stonebrook Technologies.
You are hereby directed to cease all further disclosure of any Stonebrook proprietary information immediately. We are also demanding written confirmation, within 5 business days, that all copies of confidential materials in your possession have been destroyed or returned. Stonebrook Technologies reserves all rights under the NDA, including the right to seek injunctive relief and pursue liquidated damages as specified in Section 8.
This matter has been referred to legal counsel. Do not contact Stonebrook directly. Direct all communications to:
Rachel Bloom, Esq.
Bloom & Associates
500 SW 5th Avenue, Suite 1100
Portland, OR 97204
rbloom@bloomassociates.com
(503) 555-1710
Sincerely,
Gregory Moss
General Counsel, Stonebrook Technologies Inc.
Wrapping Up
A breach of contract notice done well does more than signal frustration. It establishes your position clearly, gives the other party a defined path to make it right, and creates a written record that protects you if things move to court or mediation. The tone should be firm but free of threats or emotional language, and the facts should be specific enough that there’s no room for the other party to claim they didn’t understand what was being asked of them.
Every situation is different, and the stakes vary widely from an unpaid invoice to a violated NDA. Use these samples as a starting point, but run anything involving significant money or a complex legal relationship past a licensed attorney before it goes out. A good notice can resolve things fast. A poorly worded one can cost you more than it saves.