The short answer
Read a payment processing statement in three passes: confirm the sales and transaction counts, identify every fee, then reconcile the money deposited. A quoted rate alone does not explain your total cost, and the difference between sales and deposits is not automatically a processing fee.
Start with the right documents
Gather one complete monthly processing statement, the matching settlement report and any separate gateway, software or equipment invoices. Use two or three months if your sales change substantially with the season. Keep all pages: a summary can omit annual charges, notices and individual fee categories.
Create a simple worksheet with five columns: description, amount, billing period, included in another total, and question for the provider. That fourth column prevents a common mistake: adding an itemized fee to a summary that already includes it. Leave unclear items unresolved until the provider explains them.
Before comparing months, check the merchant account, currency, date range and locations covered. A company with separate online and retail accounts may need more than one statement to understand the whole business.
Pass 1: establish what you processed
Record gross card sales, refunds, transaction count and net card sales. Keep cash and unrelated bank transfers out of the card-volume figure. Note whether the transaction count includes refunds or authorization attempts; the provider's definitions control.
Nuvei's statement guide, for example, separates sales, credits, card types, interchange and scheme fees, other charges, adjustments and reserves. Your provider may use different labels. Use its own glossary to interpret them. Nuvei statement documentation.
Next, write down the sales channels represented: terminal, online checkout, invoice links, phone orders or recurring billing. A month with more online transactions may differ from a month dominated by in-person sales. That context helps explain a cost change before you assume the quoted rate changed.
Pass 2: group the fees without double counting
Use these practical review buckets, marking each item only once:
- Transaction-related charges: percentage charges, per-item charges and separately listed network costs.
- Recurring account charges: monthly service, minimum, gateway and other periodic fees.
- Operational extras: equipment, software, special reporting and services billed elsewhere.
- Event-driven charges: dispute fees, refund fees and other charges triggered by particular activity.
Interchange is one component of payment acceptance economics, not the merchant's complete bill. Visa distinguishes interchange between financial institutions from the merchant discount negotiated with the merchant's financial institution. Visa fee overview.
For every unfamiliar line, ask what triggered it, how it was calculated, whether it recurs and where the agreement describes it. A vague label warrants an explanation; it does not by itself prove an error.
Pass 3: reconcile deposits separately
Start with the settlement report and match each payout to the bank deposit. Explain refunds, disputed amounts, fees deducted before payout, reserve movements and timing differences individually. Chase notes that fees, refunds and chargebacks can all explain why a deposit differs from sales. Chase statement support.
For an illustrative month, suppose card sales were $40,000, refunds were $1,000 and fees withheld were $1,050. With no other adjustments or timing differences, the expected deposit is $37,950. Calling the full $2,050 difference a processing fee would incorrectly include the $1,000 refunded to customers.
If the deposit still does not reconcile, ask for a transaction-level explanation through your provider's approved channel. Keep reserve movements visible as cash-flow items rather than automatically treating all withheld money as a permanent service charge.
Finish with a short list of decisions
Your first review should produce three useful outputs: a reconciled fee total, a clearly defined volume figure and a list of unanswered questions. From there, calculate an effective rate using the same cost and volume definitions every month.
Prioritize questions by impact. A repeated $60 charge deserves attention sooner than an unfamiliar two-cent line, but small charges can matter when multiplied by thousands of transactions. Ask for corrections in writing and retain the supporting statement.
Prepare for a statement review
Request a free merchant statement review. Start with basic business and contact information. Ask the team for the approved document-sharing route before sending statements; remove unnecessary bank details, full account identifiers and customer payment information.
Opulent Lending receives your inquiry and coordinates an introduction to Green Payment Solutions. Payment-processing proposals, approval, onboarding and service are handled by GPS and the applicable provider. Savings are not guaranteed.
Frequently asked questions
Is my bank deposit the right number for calculating processing costs?
Usually not. A deposit can already reflect refunds, fees, reserve movements and timing differences. Use a defined card-sales figure from the processing report and reconcile deposits separately.
Does a PCI-related fee prove my business is compliant?
A fee line does not establish compliance. Ask your provider which validation steps apply to your payment setup and how to confirm completion.
How many statements should I review?
Start with one complete month to learn the layout. Two or three representative months make it easier to see recurring costs, unusual charges and changes in the way customers pay.
Sources and further reading
Original sources used to prepare this guide. Provider terms and network requirements can change; check the linked source and your applicable agreement.
- Nuvei: Merchant Processing Statement (opens in a new tab)↗docs.nuvei.com
- Chase: Merchant Services statement support (opens in a new tab)↗www.chase.com
- Visa: Credit card processing fees and interchange (opens in a new tab)↗usa.visa.com
- PCI SSC: Merchant responsibility when outsourcing (opens in a new tab)↗www.pcisecuritystandards.org
About this guide. Prepared by Opulent Lending for general merchant education. Opulent receives inquiries and coordinates introductions to Green Payment Solutions. It does not promise a particular rate, approval or savings.
Read our editorial policy. For a correction, email support@opulentlending.com with the page link and the issue.
