Card vs ACH vs Check: Invoice Payment Cost Comparison for Auto Repair Shops
Auto repair shops collect from fleets, commercial accounts, and warranty administrators on very different timelines than the walk-in customer who pays at pickup. Use this tool to see what each payment method costs your shop in fees, front-desk time, and cash sitting in receivables while you still owe parts suppliers and payroll.
What getting paid costs you
Side by side, per month
| Per month | Card | ACH | Check | Total |
|---|
Estimates are based on published industry averages and are not a quote. Actual rates depend on card mix, ticket size, industry, and underwriting.
Scenario: move part of your check volume
Estimates are based on published industry averages and are not a quote. Actual rates depend on card mix, ticket size, industry, and underwriting.
Your payment-mix report
Four scenarios run on your numbers
| Scenario | Direct cost | Carrying cost | Total / month | Cash tied up | Days to cash | vs. current mix |
|---|
ACH-first moves 50% of your check share to ACH. Paperless moves all of it to ACH. Card for speed moves 25% to card and 50% to ACH. Card-heavy moves all of it to card. The highlighted row has the lowest estimated total monthly cost; ties go to the option with less cash tied up.
Illustrative interchange-plus card estimate
Invoice wording templates
Customers pay the way your invoice makes easiest. Put the electronic option first and the mailing address last. Replace everything in brackets.
Version 1: full invoice footer
Amount due: $[amount] by [due date] Pay online by ACH/eCheck or card in about a minute: [secure payment link] Paying by bank transfer? Use the ACH remittance details on file and include invoice #[number] in the payment reference. We will never change our bank details by email alone; call [phone] to confirm any change. Paying by check? Make it payable to [legal business name] and mail to [remit-to address]. Write invoice #[number] on the check.
Version 2: one line for the invoice email
Invoice #[number] for $[amount] is due [date]. Pay by ACH or card here: [secure payment link]. Checks are still accepted at [remit-to address].
Version 3: for customers with an AP department
Payment options (in order of preference): 1. ACH / eCheck (preferred): [secure payment link], or ACH to the account on file. Email remittance advice to [ar@yourcompany.com]. 2. Card (Visa, Mastercard, Discover, American Express): [secure payment link]. [If you apply any card fee, describe it here exactly as your card program and state rules require.] 3. Check: payable to [legal business name], mailed to [remit-to address]. Please reference invoice #[number] with every payment.
Setup checklist: ACH/eCheck and a virtual terminal
- Decide the order you will list payment options on invoices, with ACH/eCheck first if lower cost and faster cash is the goal.
- Confirm the deposit account and who at your company can see and change payment settings.
- Set up ACH/eCheck acceptance with your bank or processor. If you will pull funds from customer accounts (ACH debits), get each customer's authorization and keep a record; ask your provider which authorization format they require.
- Set up a virtual terminal for card and eCheck payments taken by phone, with a separate login for each staff member.
- Create a secure payment link or hosted payment page and add it to your invoice template and invoice emails.
- Require the invoice number in the payment reference field so payments match to invoices without manual lookups.
- Connect deposits to your accounting system and set a daily or weekly reconciliation routine.
- Write a call-back rule for any request to change bank details, using a phone number you already have on file.
- Never write down or email full card numbers. Key them directly into the virtual terminal.
- Email your customers' AP contacts with the new options and the date they start.
- Track the share of payments by method each month and rerun this comparison with the new mix.
Questions to ask any processor about pricing
- How do you quote card pricing: interchange-plus, tiered, or flat rate? Can I see a sample monthly statement?
- What fees apply beyond the rate: per-transaction, monthly, gateway, PCI, batch, or statement fees?
- What does each ACH/eCheck payment cost, and is it a flat fee, a percentage, or a percentage with a cap?
- How many business days until card and ACH funds reach my bank account?
- How are refunds, returns, and chargebacks charged?
- Which interchange categories will my business, corporate, and purchasing card payments fall into, and how does that change by card type?
- Do you support passing Level 2 and Level 3 data (tax amount, customer code, line-item detail)? From which entry points: virtual terminal, gateway, payment links, invoices?
- Is Level 2 and Level 3 data filled in automatically, or does my staff have to type it for each payment?
- Do large single payments trigger extra review, holds, or reserves, and how are those handled?
- Will my quote show interchange separately from your markup so I can see what changes on large tickets?
Passing card costs to customers
Some sellers add a surcharge to card payments, run a cash discount or dual pricing program, build card costs into prices, or offer early-pay terms for ACH. The rules for surcharges and cash discounts vary by card brand and by state, can include notice, disclosure, registration, and cap requirements, and may treat debit cards differently from credit cards. Confirm the current rules with the card brands and your state before changing how you price card payments. This report does not determine whether any practice is allowed for your business.
A lower-friction first step is to make ACH the easiest option on the invoice, using the templates above, rather than adding a fee to card payments.
Estimates are based on published industry averages and are not a quote. Actual rates depend on card mix, ticket size, industry, and underwriting.
Bring these numbers to the conversation. A specialist can walk through ACH, virtual terminal, and card options for your invoices. Nothing on this page is a quote.
Where invoice payments actually happen in an auto repair shop
Most retail repair customers pay by card at the counter before they get their keys back, so that money usually lands in days. The slower, more expensive collections tend to sit in your invoiced work: fleet and commercial accounts on net terms, local government or utility vehicles, extended warranty administrators, and sometimes insurers or dealers who send checks after the job is closed.
For the most useful answer, run the tool on that invoiced slice of your revenue, not your whole month. Enter only the revenue you bill and wait on, the average size of those invoices, and how those customers actually pay you today. If you want a second view, run it again with total revenue to see your blended picture.
For business type, pick the option closest to how you get paid. A shop billing mostly fleets and commercial accounts may fit B2B; a mostly walk-in shop may fit retail or services. Better still, enter your own effective card rate from a recent processing statement (total fees divided by total card volume). If you leave it blank, the tool uses a placeholder industry-average estimate, not your real rate.
Worked example: a hypothetical auto repair shop with a fleet book
These numbers are made up for illustration. Picture a shop that invoices $40,000 a month to fleet and commercial accounts, with an $800 average invoice (50 invoices). Customers pay 40% by card, 20% by ACH, and 40% by check. Cash arrives in 2 days for card, 3 for ACH, and 35 for checks. Assumptions: a 3.0% card effective rate, $0.50 per ACH payment, $3 out-of-pocket per check, $30 per hour staff cost, 2 minutes per card payment, 3 per ACH, 10 per check, and a 10% annual cost of cash.
Result: card costs about $500 a month in fees and staff time ($25 per invoice), ACH about $20 ($2 per invoice), and checks about $160 ($8 per invoice). But checks tie up roughly $18,667 in cash, which costs about $156 a month to carry. All in, the shop spends about $851 a month (about 2.1% of invoiced revenue), with roughly $20,533 tied up and a weighted 15.4 days to cash.
Now move half the check volume to ACH using the scenario slider. Total cost drops to about $720 a month, a savings of about $131, and roughly $8,533 in cash is freed up as weighted days to cash fall to 9. Notice that card is the priciest method per invoice here, yet it is also the fastest. The tool exists to show that tradeoff, not to push one method.
Estimates are based on published industry averages and are not a quote. Actual rates depend on card mix, ticket size, industry, and underwriting.
What auto repair shops should watch for in the numbers
Big tickets change the math. Transmission, engine, and major diagnostic jobs can run into four figures, and percentage-based card fees grow with the ticket while ACH and check costs mostly do not. If your average invoice is $1,000 or more, the full report adds questions to ask about large-ticket card pricing, including whether passing Level 2 or Level 3 data on fleet and other commercial cards could affect what you pay.
Phone and payment-link payments are card-not-present. When a fleet manager reads a card number over the phone or pays a texted invoice link, that transaction is often priced differently from a card dipped at your counter. If a lot of your invoiced card volume comes in that way, your effective rate may be higher than you think, so pull it from a real statement.
Look past the rate at the line items. Shops commonly find statement fees, batch fees, PCI non-compliance fees, annual fees, and early termination clauses on their processing statements. Also factor in parts deposits taken before special orders, refunds on returned parts or core charges, and comeback work, since refunds and disputes add cost and staff time outside this calculation.
Seasonality matters for cash. If your bays fill up during certain months, for example with tires and batteries in cold weather or AC work in the heat, a check-heavy fleet book can leave you paying for parts and overtime long before the money arrives. Run the tool with a busy month and a slow month to see the swing.
What a good result looks like for an auto repair shop
A good result is not simply the lowest fee. For most shops it is a mix where counter customers keep paying by card, fleet and commercial accounts shift toward ACH or eCheck, and fewer dollars wait weeks in the mail. Watch the cash freed number as closely as monthly savings, since that is money you can put toward parts, payroll, or equipment.
If 30% or more of your invoiced revenue comes in by check, the full report emphasizes a setup checklist for ACH, eCheck, and a virtual terminal so you can offer fleet customers a faster way to pay. If checks take 45 days or more, or your weighted days to cash reach 30, the report links to the Merchant Funding Payback Estimator at https://touchsuite.com/tools/merchant-funding-payback-estimator.
Unlock the full report to compare four recommended payment mix scenarios against your baseline and to see an illustrative interchange-plus card estimate built on placeholder pricing assumptions, not a quote and not TouchSuite's actual rates. Want help reading it? Talk to a payments specialist at https://touchsuite.com/contact.
Frequently asked questions
Can my shop add a fee when fleet customers pay a big repair invoice by card?
Rules on surcharging and cash discount programs vary by card brand and by state, and they change. Confirm with the card brands and your state before adding any fee. Use the tool first to see what card acceptance costs you on those invoices, so you know what you are deciding about.
Our fleet accounts pay with fleet or corporate cards. Does that change anything?
It can. Commercial cards are often priced differently from consumer cards, and some processors can pass extra invoice data, known as Level 2 and Level 3, on qualifying commercial transactions. If your average invoice is $1,000 or more, the full report includes questions to ask your processor about this.
Extended warranty companies pay us by check weeks after the repair. What should I enter for days to cash?
Count from the day you submit the invoice or claim to the day the money is usable in your bank account, including mail and deposit time. If warranty payments are much slower than your fleet checks, run the tool separately for each group so the long wait is not hidden in an average.
Should I include walk-in customers who pay at pickup?
For the clearest picture, leave them out and run the tool on invoiced revenue only, such as fleet, commercial, and warranty work. Counter card payments usually settle quickly because the customer pays before the keys are released. You can run a second pass with total revenue if you want the blended view.
If slow-paying fleet invoices are squeezing my parts budget, will the tool tell me what to do?
It shows how much cash is tied up in collections and what moving check payers to ACH or card could free up. If your numbers show long waits, the full report links to our Merchant Funding Payback Estimator so you can compare that option. It does not predict approval or terms.