An important federal tax deadline is approaching and many tax professionals are encouraging clients to review whether they should file a protective refund claim before July 10, 2026.
IRS Refund Claim Deadline Approaching? Let Send Certified Mail Handle the Mailing
The deadline is tied to Kwong v. United States, a federal court case involving IRS disaster relief during the COVID-19 federal disaster period. Although the case is still on appeal, many CPAs, tax attorneys, enrolled agents, and businesses are reviewing prior tax returns, income tax filings, and each affected tax year to determine whether refund claims should be submitted before the deadline.
If your tax advisor recommends filing a claim, another question becomes just as important.
How will you document that your mailing was sent on time?
For time-sensitive IRS correspondence, mailing documentation can be just as important as the documents themselves.
Why Mailing Documentation Matters
Whether you are filing IRS Form 843, supporting documents or other important IRS correspondence, you want records that show your mailing was prepared and sent on time.
Many tax professionals rely on USPS Certified Mail, because it provides valuable documentation throughout the mailing process.
These records may include:
- Proof of mailing
- USPS tracking
- Proof of delivery
- Delivery confirmation
- Electronic Return Receipts
- Signature confirmation options
These tools help create a documented mailing history for important IRS communications.
Recent USPS guidance has also highlighted the importance of the official USPS Acceptance Scan. Unlike a postmark alone, the Acceptance Scan documents when USPS first accepted possession of your mailing.
Skip the Printing, Stuffing, and Trip to the Post Office
Preparing IRS documents takes time. Letters must be printed. Supporting documents must be assembled. Envelopes must be addressed. Certified Mail paperwork must be completed. Then, someone has to visit the Post Office and wait in line.
Instead of sending Certified Mail yourself, let Send Certified Mail Online handle everything for you.
Easily upload your completed documents through our secure online platform. Our team will print and mail your documents, prepare your USPS Certified Mail, and present your mailing directly to the United States Postal Service.
Whether you need USPS Certified Mail, Priority Mail, or First-Class Mail, we make the mailing process faster, easier, and more reliable.
We Obtain the USPS Acceptance Scan
One of the biggest advantages of using Send Certified Mail is that we don't just prepare your mailing. We take it to the Post Office on your behalf. Our team presents your mailing directly to USPS and obtains the official Acceptance Scan.
This creates documented proof that USPS accepted your mailing on a specific date. For tax professionals working with important filing deadlines, that extra level of documentation provides valuable peace of mind.
Built for Tax Professionals and Businesses
Every filing season brings tight deadlines and increased workloads. Send Certified Mail helps organizations spend less time preparing mail and more time serving clients.
Our platform is trusted by:
- CPA firms
- Tax attorneys
- Enrolled agents
- Payroll companies
- Financial institutions
- Corporate tax departments
- Businesses
- Government agencies
Whether you are mailing one document or thousands, our service scales to meet your needs. For larger projects, we also support Microsoft Word, Excel, CSV uploads, SCAN Forms, and secure SFTP automation.
Everything You Need in One Place
Every mailing includes powerful compliance tools designed to help you stay organized. Your account provides access to:
- USPS tracking
- Proof of mailing
- Proof of delivery
- Electronic Return Receipts
- Delivery confirmation
- Secure online reporting
- 10-year compliance archive
- Mailing history
If requested, USPS Certified Mail can also include a traditional green card or electronic signature record, depending on your mailing preferences. Everything remains available from your secure online account whenever you need it.
More Than Certified Mail
While many customers know us for sending Certified Mail, our platform supports much more.
You can also send:
- USPS First-Class Mail
- USPS Priority Mail
- USPS Priority Mail Express
Whether you're mailing a protective refund claim, a client letter, or everyday business correspondence, Send Certified Mail provides one secure platform for all of your mailing needs.
Save Valuable Time During Tax Season
When important tax deadlines approach, every minute counts. Instead of printing documents, stuffing envelopes, applying Certified Mail forms, and driving to the Post Office, let our team handle the work for you.
Just upload your documents. We'll print them, prepare the mailing, apply the correct USPS services, obtain the Acceptance Scan, and provide tracking throughout the mailing process. That means less administrative work for your staff and more time serving your clients.
Why Businesses Choose Send Certified Mail
Law firms, accounting firms, financial institutions, healthcare organizations, insurance companies, government agencies, and businesses across the country trust our service to handle important mailings.
Our experienced team prints your documents, prepares your mailing, obtains the USPS Acceptance Scan, and provides tracking, proof of mailing, proof of delivery, and Electronic Return Receipts.
You save time. You reduce manual work. You gain confidence that your important documents were mailed properly.
Frequently Asked Questions
Can I send IRS documents online?
Yes. Just upload your completed documents to Send Certified Mail. We'll print and mail them using USPS Certified Mail, First-Class Mail, or Priority Mail based on your mailing preferences.
Will I receive proof that my documents were mailed?
Yes. Your account includes proof of mailing, USPS tracking, proof of delivery, delivery confirmation, and Electronic Return Receipts for qualifying mailings.
Can I use Priority Mail with Certified Mail?
Yes. Certified Mail can be combined with eligible USPS mailing services, including Priority Mail, when appropriate for your mailing.
Do I need Certified Mail Labels or special equipment?
No. Unlike self-printing solutions that require Certified Mail Labels, Send Certified Mail is a complete print-and-mail service. Just upload your documents and we'll take care of the rest.
Don't Wait Until the Deadline
The closer filing deadlines get, the busier the postal system becomes. If your CPA or tax advisor recommends filing a protective refund claim, don't wait until the last minute. Uploading your documents only takes a few minutes.
From there, our team handles the printing, mailing, USPS Acceptance Scan, and tracking so you can focus on your clients instead of paperwork.
Get Started Today
Although Kwong v. United States remains under appeal, the approaching July 10, 2026 deadline has prompted many tax professionals to review potential tax refund opportunities with their clients.
If your tax advisor recommends filing a protective refund claim, let Send Certified Mail handle the mailing for you.
Upload your completed documents and we'll print and mail them using USPS Certified Mail, obtain the USPS Acceptance Scan, provide proof of mailing, proof of delivery, Electronic Return Receipts, and securely archive your mailing records for 10 years.
Skip the trip to the Post Office, reduce administrative work, and mail your important IRS documents with confidence through Send Certified Mail Online.
Learn more about saving time and money with Send Certified Mail by scheduling a complimentary Live Demo call with our Customer Support Team today.