What are supplier payments? Process & how they work

What are supplier payments?

Supplier payments are how businesses compensate their vendors for the goods and services they have provided. 

Processing supplier payments is a key step in the accounts payable process. It usually kicks off once the vendor issues an invoice, following the delivery of said goods or services. 

Paying suppliers on time is a critical aspect of smooth-running operations. It helps businesses meet their contractual obligations, avoid late fees, and strengthen their supplier relationships for a more resilient supply chain. 

Key aspects of supplier payments

Each business may have its own procedures for processing supplier payments, depending on the method of payment, internal approval requirements, and accounts payable systems. 

Even so, supplier payments have a few key components, regardless of variations in this process across businesses, including: 

• Transaction: The exchange of money from the business to its supplier.
• Core process: Each business defines its own method for processing supplier payments, from invoice matching to approvals routing and payment remittance.
• Methods: Partners agree upon a payment method, including ACH transfers, credit cards, paper checks, etc.
• Importance: Supplier payments ensure suppliers are compensated for their work.
• Accounting: Both parties will record the payment in their accounting systems. 

Why is supplier payment important?

As mentioned above, supplier payments play a key role in business relationships and accounts payable operations. Let’s take a closer look at the importance of these payments. 

Maintains relationships

To start, supplier payments help keep vendors happy and fairly compensate them for the goods or services they have provided. 

More specifically, on-time, accurate payments uphold vendor relationships, showing vendors that the customer is a reliable partner. 

Of course, this helps the business avoid uncomfortable conversations, late fees, and breaches of contract. However, it also helps them become preferred customers for the vendor, which can come with additional perks like priority shipping and collaboration. 

Ensures a steady supply

In a similar way, timely supplier payments can strengthen a business’s supply chain, ensuring it gets steady shipments of the goods or services it needs to support operations. 

If the business has late or missed payments, the vendor may cease or delay further shipments until they have been paid, which can cause serious disruptions to regular business operations.

Financial health

A business that properly manages the vendor payment process can enjoy healthy cash flows. 

These teams take a proactive approach to payment timing, ensuring vendors are paid by the invoice due date while aligning with the business’s cash needs. 

Businesses with a strong control over vendor payments can take advantage of early payment discounts, where applicable, creating further financial benefit. 

Upholds business reputation

Word of mouth is powerful in the business world, not just among prospective customers but also among suppliers. 

No business wants to be known as the customer who doesn’t pay their suppliers or often shortchanges them. 

Getting a reputation as an unreliable business with vendor payments can make it difficult to find quality suppliers in the future. 

The supplier payment process explained

Paying suppliers is a relatively straightforward process for AP teams, though the specifics can vary between companies. Here’s a quick overview of what this process can look like: 

1. Vendor invoicing: The supplier issues a payment to the customer, including the total invoice amount, itemized description, and clearly defined payment terms.
2. Invoice matching: The customer’s accounts payable team ingests the invoice and verifies the details, doing a three-way match against the purchase order and the delivery receipt.
3. Approval routing: After the AP team verifies the invoice, it is routed to designated approvers, per internal policies.
4. Payment scheduling: Once the invoice is approved, payment is scheduled ahead of the due date using the preferred payment method.
5. Payment remittance: The payment is sent on the date the customer specifies, with funds transferred from the business’s account to its supplier. 

Types of supplier payment methods

One of the variables in supplier payments is the chosen payment method. Vendors and customers may agree on a specific payment method based on their individual preferences, system restraints, or other reasons. 

Here are some of the common payment methods for supplier payments: 

ACH payments

A common B2B payment method is ACH payments, which are electronic bank transfers.

With this method, funds are sent between the customer’s and vendor’s banks, offering a secure, cost-effective, and convenient payment method. 

Pros: 

• Minimal transaction fees compared to card payments or wire transfers
• Reduced risk of fraud compared to check payments
• Quick and predictable processing times

Cons: 

• Typically limited to domestic payments
• Funds may take a few days to settle 
• Transactions must often be completed during standard business hours

Wire transfers

Wire transfers are another digital payment option for supplier payments. They are typically used to send large payments, with quick processing times to support urgent requests. 

Pros: 

• Quickest processing times of digital payment methods
• Cross-border transactions are supported

Cons: 

• Higher processing fees compared to checks or ACH payments
• Cannot be reversed for mistakes or fraudulent requests

Credit cards

Some businesses will pay their suppliers with credit cards, which are widely accepted and secure. 

Due to merchant transaction fees as a percentage of the total purchase amount, credit cards are typically used for smaller transactions. 

Pros: 

• Often settle more quickly than ACH payments
• Built-in fraud detection and security measures

Cons: 

• High transaction fees as a percentage of the total transaction value
• Limited by the customer’s credit limit

Paper checks

Over one quarter of B2B payments in 2025 were completed via paper check. While less common than in decades past, it’s still a widely used payment method, preferred for simplicity and low processing fees.

Pros: 

• No cost to vendors to accept them
• Well-established and straightforward

Cons: 

• Slower processing times
• Risk of being lost or misplaced
• Fraud risk 

How to choose the right payment method for your business

Not sure which payment method is the right one for your business? Here are some key points to help you decide: 

• Contractual obligations: Some vendor agreements will dictate which payment methods the supplier will accept.
• Timeline: Reflect on how quickly the funds need to be settled in the vendor’s account. Some methods offer quicker processing times than others, like wire transfers.
• Security considerations: If you’re working with a new supplier, it may be worth it to use a method with more advanced security features, like a credit card.
• Payment amount: Consider the total payment amount and any additional fees you might face from using certain payment methods. 

Challenges in supplier payment management

Though paying suppliers is not a technically challenging task for finance and accounting teams, there are certain challenges that teams should be aware of, such as: 

Invoice processing errors

Especially if businesses still rely on manual processes, human error will always be a factor in vendor invoice processing. 

Even through honest mistake, paying vendors the incorrect amount, accidentally missing the due date, or making duplicate payments can create financial reporting issues for the business. 

Manual processing 

Smaller or established businesses may still rely on manual processes to track invoices and initiate vendor payments. 

While this can feel sufficient for some, it’s not a scalable solution as a business grows. Plus, it’s prone to human error, which can result in incorrect or late payments. 

Strained supplier relationships

When vendors consistently receive on-time or early payments, they feel trust in their customers and are compelled to continue their partnership.

However, the opposite is also true. Missed payments, processing errors, or incorrect payments can damage the relationship, causing vendors to reconsider their partnership and put less priority on the customer over others. 

Best practices for managing supplier payments

Strengthen supplier payment management with these best practices: 

Leverage automation

Where possible, implement an automated accounts payable solution to reduce reliance on manual efforts. 

Depending on the exact solution, these platforms can help streamline invoice matching, approvals routing, payment processing, and accounting and reconciliation. 

Not only can this help teams work more efficiently, but it can also help reduce the risk of payment errors that impact the bottom line. 

Define clear payment terms with vendors

From the beginning of the supplier relationship, define clear payment terms to avoid ambiguity about payment due dates and preferred payment methods. 

For example, the teams may agree to net 30 payment terms via ACH payments, which applies to all transactions that may occur between them. 

Ensure timely payments

If nothing else, businesses should make it a priority to pay vendors on time. 

As mentioned previously, regularly making on-time payments provides a wide range of benefits, from strengthening supplier relationships to avoiding late fees and supporting their overall reputation. 

This might mean using payment methods that support quicker processing times or implementing software to handle this workflow automatically. 

Implement a vendor portal

Some businesses may benefit from adopting a vendor portal to centralize all vendor communications, share invoices, and provide status updates. 

These tools offer plenty of benefits beyond payment management, including quicker onboarding, enhanced transparency, and possible cost savings through increased efficiency.

Modernize supplier payments with BILL

BILL helps businesses of all sizes automate accounts payable workflows and leverage digital payment methods, including: 

• ACH payments
• eChecks
• EFT transactions

From automatic invoice matching to approval routing and payment processing, BILL allows teams to modernize AP processes and spend less time manually completing these tasks.