What a payment gateway aggregator does
A payment gateway aggregator is a company that lets you accept payments without signing a direct contract with a payment processor. Instead of you dealing with Stripe, Square, or another processor on your own, the aggregator sits between you and them. You sign one agreement with the aggregator, they handle the relationship with the processor, and you get a single dashboard to manage all your transactions.
The aggregator collects your payment information, routes it to the processor, and deposits the money into your bank account. From your side, it looks like one service. Behind the scenes, the aggregator is managing multiple processor relationships and often multiple merchant accounts so they can offer you flexibility—like switching processors if rates change, or accepting payment methods one processor doesn't support.
This model is common in industries where merchants need to move fast or handle high volume without the paperwork of a traditional merchant account. Ride-sharing apps, food delivery platforms, and marketplace sellers often use aggregators because the setup is faster and the terms are more flexible than going direct to a processor.
Key Takeaways
- An aggregator is a middleman between you and payment processors, so you sign one contract instead of managing multiple processor relationships yourself.
- Aggregators typically charge higher fees than direct processor accounts because they absorb the risk and handle underwriting for many small merchants at once.
- You get faster onboarding—often same-day or next-day approval—because the aggregator has already vetted the processor and handles compliance.
- The aggregator controls which payment methods you can accept and which processor handles each transaction, so you have less direct control than a direct merchant account.
- Aggregators work best for merchants who need flexibility, don't have high transaction volume, or want to avoid the complexity of managing a merchant account directly.
How an aggregator differs from a direct processor account
When you open a merchant account directly with a processor like Stripe or Square, you are the merchant of record. The processor issues you a merchant ID, you own the relationship, and you negotiate rates based on your volume and risk profile. If you want to switch processors, you have to close that account and open a new one.
With an aggregator, the aggregator is the merchant of record. You are a sub-merchant under their account. The aggregator holds the master merchant agreement with the processor, and you operate under that umbrella. This means the aggregator can onboard you much faster because they have already done the heavy compliance work with the processor. You do not have to wait for underwriting or provide as much documentation.
The trade-off is cost and control. Aggregators charge higher fees—often 2.9% to 3.5% plus per-transaction fees, compared to 1.5% to 2.9% for a direct account with good volume. You also cannot negotiate rates the way you can with a direct processor, because the aggregator sets the terms for all their sub-merchants. And if the aggregator decides to shut down or loses their processor relationship, you may have to move your account with little notice.
When an aggregator makes sense for your payments
Aggregators work best if you are new to accepting payments and want to start without a long application process. If you are a marketplace seller, a freelancer, or a small business that does not have consistent monthly volume, an aggregator lets you accept cards immediately without proving your business history or revenue.
They also make sense if you operate in a high-risk industry—like e-commerce, subscription services, or international payments—where a direct processor might require higher reserves or longer underwriting. The aggregator absorbs some of that risk by pooling many merchants, so they can approve you faster even if your business profile would slow down a direct application.
Aggregators are less useful if you have high transaction volume (over $100,000 per month) or stable, predictable revenue. At that scale, you can negotiate better rates directly with a processor, and the savings will outweigh the complexity of managing your own merchant account. You also lose flexibility with an aggregator—if they do not support a payment method you need or their processor has downtime, you cannot easily switch.
How money moves through an aggregator
When a customer pays you through an aggregator, the transaction follows this path: customer card → aggregator's payment gateway → processor → your bank account. The aggregator collects the payment data, validates it, and sends it to the processor they have chosen for that transaction. The processor communicates with the customer's bank and the card network (Visa, Mastercard, etc.) to approve or decline the charge.
Once approved, the processor sends the transaction record back to the aggregator, who records it in your dashboard. The money does not move immediately. Instead, the aggregator batches your transactions (usually daily) and deposits them into your bank account, minus their fees and the processor's fees. This settlement typically takes one to two business days, though some aggregators offer faster payouts for an additional fee.
If a transaction is disputed or reversed, the aggregator handles the chargeback process on your behalf. They will notify you, ask for evidence if you have it, and submit it to the processor. If the chargeback is lost, the aggregator deducts the amount from your next payout. This is one area where using an aggregator can be risky—if you have a high chargeback rate, the aggregator may freeze your account or terminate your service.
Fees and costs you will encounter
Aggregators charge in layers. The first is the interchange fee, which is set by the card networks and goes to the customer's bank—this is the same whether you use an aggregator or a direct processor. The second is the assessment fee, also set by the networks. The third is the aggregator's markup, which is where they make their money.
A typical aggregator pricing structure looks like this: 2.9% + $0.30 per transaction for credit cards, and 1.5% + $0.30 for debit cards. Some aggregators charge a monthly account fee ($10 to $50) on top of per-transaction fees. A few charge a percentage of your monthly volume instead of per-transaction fees. Read the fee schedule carefully, because the structure varies widely.
You may also pay for add-ons: faster payouts (next-day or same-day settlement), international payments, recurring billing, or access to advanced reporting. These typically cost $10 to $100 per month depending on the feature. If you use the aggregator's point-of-sale system or invoicing tools, those may have separate fees as well.
Risks and limitations of using an aggregator
The biggest risk is account termination. Because the aggregator is the merchant of record, they can close your account if your chargeback rate exceeds their threshold (usually 1% to 2%), if they suspect fraud, or if your business model changes. When they close your account, your access to payment processing stops immediately. You cannot easily move your transaction history or customer payment data to another processor.
You also have limited visibility into which processor is handling your transactions. If one processor has downtime or rejects a transaction type, you may not know why, and you cannot switch processors on your own. Some aggregators will route around outages, but others will not. This can mean lost sales during processor issues.
Another limitation is that aggregators often have restrictions on what you can sell. Many will not process payments for high-risk categories like gambling, adult content, or certain financial services. If your business falls into a restricted category, the aggregator may terminate you without warning, even if you disclosed it during onboarding.
Aggregators versus direct processors: which should you choose
Choose an aggregator if you are starting out, need fast onboarding, have low to moderate transaction volume, or operate in a category that direct processors view as risky. The convenience and speed are worth the higher fees when you are new or when you do not have the leverage to negotiate better rates.
Choose a direct processor if you have stable, predictable revenue over $50,000 per month, want to own your merchant relationship, or need flexibility to switch processors without losing your account. Direct processors also give you more control over which payment methods you accept and how transactions are routed.
Some businesses use both: an aggregator for fast, low-risk transactions and a direct processor for high-volume or specialized payment types. This hybrid approach costs more in fees but gives you redundancy and flexibility. If you are unsure which path fits your business, start with an aggregator and move to a direct processor once your volume justifies the application process.
Frequently Asked Questions
Can I switch from an aggregator to a direct processor without losing my transaction history?
Your transaction history stays with the aggregator—you cannot transfer it to a new processor. However, most aggregators will provide you with a CSV export of your transaction data for your records. When you move to a direct processor, you will start fresh with a new merchant account and a new transaction history. This is one reason to keep detailed records of your own.
What happens to my money if the aggregator goes out of business?
This depends on the aggregator's reserve policy and their processor agreement. Most aggregators hold a small reserve (5% to 10% of your monthly volume) to cover chargebacks and disputes. If the aggregator fails, that reserve may be tied up in bankruptcy proceedings. Your recent deposits should be safe because they have already settled into your bank account, but money still in the aggregator's system may be at risk.
Do aggregators report my transactions to the IRS?
Yes. Aggregators are required to report payment volume to the IRS on Form 1099-K if you process over $20,000 and have more than 200 transactions in a calendar year (though this threshold has changed in recent years—check current rules). The aggregator will send you a copy of the 1099-K by January 31 of the following year. You must report this income on your tax return.
Can I accept payments in multiple currencies through an aggregator?
Some aggregators support multi-currency processing, but not all. If they do, they typically charge a currency conversion fee (1% to 3%) on top of their standard fees. Check the aggregator's documentation to see which currencies they support and what the conversion rates are. Direct processors often offer better rates for high-volume international payments.
What is a chargeback, and how does an aggregator handle it?
A chargeback is when a customer disputes a charge with their bank and asks for the money back. The aggregator notifies you, gives you a window (usually 7 to 10 days) to provide evidence that the charge was legitimate, and submits your response to the processor. If the bank sides with the customer, the aggregator deducts the full transaction amount plus a chargeback fee (usually $15 to $100) from your next payout. Too many chargebacks can get your account closed.