By a B2B payments industry contributor.
The humble paper check feels like a solved problem. You print it, stuff it, and mail it. Yet this routine process is a significant source of financial risk for businesses. According to a 2025 survey by the Association for Financial Professionals, a staggering 79 percent of organizations were targets of attempted or actual payments fraud. Checks remain a primary vehicle for these attacks due to exposed account numbers and physical mail theft.
Despite the growth of digital payments, checks are far from obsolete. The Board of Governors of the Federal Reserve System reports that Americans still wrote 11.2 billion checks in a recent year, representing a massive volume of sensitive financial data moving through the mail. Managing this process in-house requires secure check stock, specialized printers, and strict internal controls. For many companies, a dedicated online check printing and mailing service offers a way to offload this operational burden and its associated security risks.
Quick answer: Outsourcing check payments can significantly reduce fraud risk and overhead, but only if you select a vendor with verifiable security protocols. The key is to look past marketing claims and focus on third-party compliance audits (like SOC 2), data handling policies, and their ability to integrate securely with your existing financial software.
What’s inside
· What are the real risks of handling checks in-house?
· How do you evaluate a vendor’s security and compliance?
· What technical features actually prevent check fraud?
· Frequently Asked Questions
· The Bottom Line: It’s About Risk, Not Just Cost
What are the real risks of handling checks in-house?
The primary risks are financial loss from sophisticated fraud schemes and the surprisingly high operational costs of manual processing. While check volume is declining, the threat per check is arguably increasing as criminals focus their efforts on this vulnerable payment method. The process of printing, signing, stuffing, and mailing checks creates multiple points of failure that can be exploited both internally and externally.
Checks remain a prime target for financial crime. According to a 2025 survey by the Association for Financial Professionals, 79 percent of organizations were victims of attempted or actual payments fraud. In-house check processing exposes raw banking data on every payment document. This information can be stolen from office printers, unsecured trash, or directly from the mail system through “check washing,” a process where criminals use chemicals to erase the payee and dollar amount.
The scale of this exposure is massive. Despite the rise of electronic payments, checks are still a core part of B2B commerce. The Board of Governors of the Federal Reserve System reports that Americans still wrote 11.2 billion checks in a recent year. Each of those documents represents a potential security risk. Managing this volume internally requires not just vigilance but also specific materials and technology, like secure check stock and printers using special MICR (Magnetic Ink Character Recognition) toner.
Beyond direct fraud, the hidden costs of internal processing can be substantial. The price of a stamp is just the beginning. The true expense includes employee time, equipment maintenance, and supplies. Calculating this “fully loaded” cost gives a much clearer picture of your actual accounts payable overhead.
❝ A useful exercise is to calculate your total cost per check. This isn’t just the postage and envelope. Factor in the prorated salary of the AP clerk for printing and mailing, the cost of secure check stock, specialized MICR toner, and the time spent on reconciliation, reissuing lost checks, and handling exceptions. For many businesses, this figure is five to ten times the cost of the postage alone.
These dual pressures of rising fraud and high internal costs are the primary drivers for businesses to evaluate third-party payment services. The goal is to transfer the risk and operational burden to a provider who can leverage economies of scale in security, compliance, and technology.
How do you evaluate a vendor’s security and compliance?
You must evaluate a vendor based on independent, third-party audits, not on their own marketing claims. A trustworthy provider will readily share formal compliance reports that verify their security posture. Without this proof, any promise of security is just an assertion.
The most critical document to request is a System and Organization Controls (SOC) 2 Type 2 report. This isn’t just a certificate; it’s a detailed audit conducted by an independent CPA firm. The audit assesses a service provider’s controls against the Trust Services Criteria, security, availability, processing integrity, confidentiality, and privacy, developed by the American Institute of CPAs (AICPA). A Type 2 report is significantly more rigorous than a Type 1 because it evaluates the effectiveness of these controls over an extended period, typically six to twelve months, rather than on a single day.
❝ When you receive a SOC 2 report, don’t just file it away. Look for two key things. First, find the auditor’s opinion letter. It should be “unqualified,” meaning the auditor found no significant issues. Second, review the section on “exceptions.” No provider is perfect, but you need to understand what exceptions were noted and how the vendor addressed them. A refusal to provide the full report is a major red flag.
For businesses in specific industries, additional compliance is non-negotiable. If you handle any patient data, for example on Explanation of Benefits statements mailed with checks, the vendor must be HIPAA compliant. This ensures they have the required administrative, physical, and technical safeguards to protect Patient Health Information (PHI). Similarly, if any part of their service touches payment card data, they should be able to demonstrate PCI DSS (Payment Card Industry Data Security Standard) compliance.
Use this framework to compare potential vendors:
| Compliance Standard | What It Is | Why It Matters for Payments |
| SOC 2 Type 2 | An independent audit of security, availability, and confidentiality controls over time. | Provides the strongest proof that a vendor’s security systems are designed well and operate effectively day-to-day. |
| HIPAA | A U.S. federal law governing the security and privacy of protected health information (PHI). | Mandatory for any organization sending checks or documents that contain patient data. |
| PCI DSS | A set of security standards for organizations that handle branded credit cards. | Crucial if the provider also processes or stores any payment card information as part of their service. |
A vendor’s investment in these regular, costly audits is a direct reflection of their commitment to protecting your financial data. It separates professional-grade services from those that merely talk about security.
What technical features actually prevent check fraud?
Effective fraud prevention relies on a layered system that secures the check at every stage: data validation before printing, physical security on the document itself, and verification with the bank upon deposit. No single feature is a silver bullet; instead, these elements work together to create a chain of security that is difficult for criminals to break.
The first layer is data integrity. Before a check is even printed, its destination must be verified. Professional services use address cleansing software that is CASS-certified by the U.S. Postal Service. CASS stands for Coding Accuracy Support System, and it standardizes addresses against the official USPS database. This simple step dramatically reduces the risk of checks being sent to the wrong location, a common entry point for theft. It also reduces costly delays and returned mail.
The second layer involves the physical check document. Legitimate payment services use high-security check stock with multiple anti-fraud features built in. These can include:
· Microprinting: Tiny text that is readable under magnification but becomes a blurry line if photocopied.
· Watermarks: Faint images pressed into the paper that are visible when held up to a light.
· Thermochromic Ink: A heat-sensitive ink spot that fades or disappears with warmth from a finger or breath, confirming the document is an original.
· MICR Toner: Magnetic Ink Character Recognition is a special toner that allows bank sorting equipment to read the routing and account numbers. Using the correct MICR toner is critical for automated processing and is a hallmark of a professional operation.
❝ The most powerful tool for stopping check fraud is a service called Positive Pay. Ask a potential vendor exactly how they generate and transmit the Positive Pay file to your specific bank. The process involves sending a daily file of all issued checks (check number, payee, amount) to your bank. The bank will only clear checks that perfectly match this list. Does the vendor automate this transmission for you, or are you responsible for uploading the file yourself? The answer reveals a lot about their level of integration and service.
Finally, the third layer is bank-level verification, which is where Positive Pay comes in. This is an automated fraud-detection service offered by most commercial banks. When a check is presented for payment, the bank’s system compares it against the file of issued checks you provided. If the check number, dollar amount, or payee name doesn’t match, the bank flags it as an exception item and refuses payment until you approve it. This single process effectively shuts down most attempts at check alteration and forgery.
Frequently Asked Questions
How can you determine if an online check service is safe? Look for independent, third-party validation, not just marketing claims. The most important document is a SOC 2 Type 2 report, which you should ask to review. You can also ask about their specific data security protocols, such as whether they use AES-256 encryption for your financial data both at rest and in transit.
Is the lowest per-check fee always the cheapest option? Rarely. The advertised per-check price often excludes other mandatory costs that determine the total price. When comparing vendors, be sure to ask about one-time setup fees, monthly or annual platform fees, and any extra charges for essential services like address cleansing or generating Positive Pay files. Calculate your total expected cost over a year for a true comparison.
Is it safer to use an outsourced service than to mail checks from my office? A professional, audited service significantly reduces your risk profile. These providers operate from secure facilities designed for high-volume financial printing, which limits opportunities for internal fraud or simple error. This process moves sensitive banking information off of your office printers and out of unsecured mail trays, closing common security gaps.
What’s the difference between check printing software and a full-service provider? Check printing software is a tool that lets you print checks on your own office printer using your own blank check stock. A full-service provider is an outsourced partner that handles the entire workflow for you. You send a payment file, and they manage the printing on high-security stock, envelope stuffing, postage, and mailing from their facility.
How do these services connect with my existing accounting software? Most services support two integration methods. The most common is a manual file upload, where you export a payment file (typically a .CSV) from your accounting system and upload it to the vendor’s secure portal. More advanced providers offer a full API (Application Programming Interface) that allows your software to send payment instructions directly, creating a more seamless and automated workflow.
Can I provide my own branded check stock to the vendor? In almost all cases, no. Reputable services insist on using their own vetted, high-security check stock to maintain a verifiable chain of custody and guarantee the presence of anti-fraud features. However, most will work with you to add your company logo and other branding elements to the checks they print, giving you a professional, custom appearance without compromising security.
The Bottom Line: It’s About Risk, Not Just Cost
Ultimately, the choice to outsource check payments is less about saving money on postage and more about strategically transferring risk. It reframes the search from finding a simple print-and-mail service to selecting a financial technology partner. The core value is not just efficiency. It is the measurable reduction in your exposure to payment fraud and the operational burden of managing a secure payment workflow yourself.
When you compare options, let verifiable proof be your guide. A vendor’s marketing materials will list many features, but only an independent audit like a SOC 2 Type 2 report can confirm their security claims. The right partner will not just print your checks. They will provide a secure, auditable system that strengthens your financial controls and protects your assets. This focus on proven security, not just advertised price, is the foundation of a sound decision.
About the author
Smart Payables is a financial technology firm that provides outsourced accounts payable solutions for businesses across the U.S. Since its founding in 2005, the company has managed secure check printing and mailing, ACH processing, and tax form distribution. By combining operational services with critical security protocols like Positive Pay file generation and SOC 2 Type 2 compliance, they help organizations reduce payment fraud risk and streamline financial workflows. Smart Payables handles the complete payment lifecycle, from data receipt to final mailing.