You place an $18,000 furniture order, put it on your business card to keep the project moving, and watch your processor quietly take its cut before you’ve even invoiced the client. Do that across a full room, or a full house, and the transaction fees alone can eat a meaningful slice of your markup.
That was the exact math one member brought to the Interior Design Community audience. She had always let clients pay vendors directly with their own cards. Now she wanted to move purchasing onto her own card instead, and she was stuck on the mechanics: charge for each item as it’s ordered, or bill differently? How do the processing fees get absorbed without quietly draining her profit? And how do you write it into a contract so it holds up?
The community’s answer was close to unanimous on the big question, run it through your business, not the client’s card, but the real value in the thread was in the smaller mechanics. Which account the money touches first. When the charge actually gets made. How the fee gets priced in instead of priced around. Get those details wrong and running client purchases through your credit card turns into a slow leak in your profit margin. Get them right, and it becomes one of the more defensible parts of your business.
Why Client-Paid Vendor Cards Are Falling Out of Favor
For years, plenty of designers let clients hand their own credit card directly to a vendor or workroom. It felt simpler on the surface. The designer specified, the client paid, the vendor shipped. No merchant account juggling, no float, no waiting for reimbursement. We have covered the other side of that arrangement before, in whether clients should use their own credit card for trade purchases, and the tradeoffs look very different from the designer’s side of the transaction.
The problem is that this setup quietly hands the client control over the transaction, and control over a transaction is control over the relationship. One designer laid out the standard that most of the thread converged on:
“All purchases run through your business. Period. You set the price, clients pay you, you collect sales tax if required by your state and remit that to the state.”
@leslieturnerdesign
That’s the whole model in three sentences, and it’s worth noticing what it does not say. It doesn’t say “let the client pay whoever is easiest.” It says you set the price. When a client pays a vendor directly, you’ve effectively let them see (and sometimes negotiate) a transaction that should be yours to price. When they pay you and you pay the vendor, the price they see is the price you set. That distinction is the entire reason this model exists, and it’s why so many designers who started out letting clients pay vendors directly eventually move away from it.
Sales tax collection and remittance rules vary by state, and by whether you’re operating as a reseller with a resale certificate. Educational content, not legal advice. If you haven’t confirmed how your state treats tax on marked-up product sales, that’s worth a conversation with an accountant before you finalize your contract language, not after.
What Skipping the Fee Conversation Actually Costs You
Here’s where most designers get tripped up, and it’s the part of the original question that mattered most: processing fees. If you don’t build the card fee into your pricing, every purchase you run through your own card is a small, invisible discount you’re giving away.
Some designers solve this by refusing to touch client credit cards at all, for a different reason entirely: liability, not fees.
“We don’t accept credit cards at all. The risk of charge backs is not worth it. I’ve heard of designers furnishing entire homes and then client’s did charge backs. Hundreds of thousands. Invoice in full then purchase internally.”
@kncdesigngroup
That’s a real exposure worth naming honestly. A chargeback on a fully furnished project isn’t a minor accounting headache, it’s a five- or six-figure dispute that can freeze your merchant account while it gets resolved. If you accept client credit card payments at all, you’re accepting that risk, and “invoice in full, then purchase internally” is one legitimate way to reduce it: collect payment by check or wire before a dollar of your own money touches a vendor.
But the fee question and the chargeback question are actually two different problems, and it’s worth not letting one distract from the other. One designer reframed the fee issue in a way that reset the whole conversation:
“If transaction fees are wiping out your profit, the problem isn’t the credit card—it’s your pricing structure. In virtually every other professional service industry, clients understand that what they are billed is not what the company ‘makes.’ A law firm may bill a paralegal at $150+ an hour while paying that employee a fraction of that. The client isn’t entitled to see the firm’s payroll, overhead, or profit margin. So why has the interior design industry conditioned clients to believe they should be entitled to ours? Our job is to clearly communicate what the client will pay and what they will receive, not open our books and justify whether we’re allowed to make a profit.”
@maisonbyalexandra
That’s the sentence worth sitting with: if a 3% processing fee erases your profit on a purchase, your markup was never actually covering your costs of doing business, the fee just exposed it. The fix isn’t avoiding credit cards. It’s pricing the fee into the number you quote before the client agrees.
If defending that number is what makes you hesitate, the groundwork is how to answer the “what is your markup?” question without underselling your work. A markup you can explain calmly survives the fee conversation.
Building the Account Structure Before You Touch a Vendor Invoice
Once you’ve decided purchases run through your business, the next question is mechanical: which account does the money actually move through, and in what order? Get this sequence wrong, and you’re floating client money on your own card, which is exactly the exposure a strong process is supposed to prevent.
One designer described a three-account system built specifically to keep client money, business money, and vendor payments from ever mixing:
“I keep three separate bank accounts. One is my merchant account, we’re all client payments get deposited. Any commission I make or hours it’s transferred into the main account. The third account is a savings account where I put client project deposits, and I usually apply their deposit at the end of a project. Pay for their goods using a credit card, pay the credit card bill from your merchant account. Pay sales tax from your merchant account. You’ll never be spending anyone’s money but yours.”
@_raisedbywolfes_
The takeaway isn’t that you need exactly three accounts, it’s the discipline behind the structure. Client payments land in a dedicated account first. Pay vendor purchases from business funds, not personal float. Your fee moves to your operating account only once it’s earned and the client’s money has cleared. That sequencing is what keeps “I paid for the client’s sofa on my card” from ever turning into “I’m carrying a balance because the client hasn’t paid me yet.”
Another designer described a similar structure with a sharper rule about timing:
“Invoice and collect payment from your client, in full, with sales tax and mark-up or procurement fee included. That payment should funnel to a dedicated acct from which you’ll later make the payment on your CC. Make those purchases on your own card only once their payment has cleared, so you can pay off that charge immediately, so no interest is incurred. Good luck and be doggedly unapologetic about your process!”
@designcadence
That last detail matters more than it sounds. Paying off the card charge immediately, the same day the client’s payment clears, means you’re never carrying interest on a client’s furniture. You’re using the card purely as a payment rail, not as a line of credit for someone else’s project. If you’re ever floating a balance on a client purchase for more than a billing cycle, that’s a sign your invoicing timing needs adjusting, not a sign you need a bigger credit limit.
Pricing the Fee In, Not Around It
This is where the original question gets fully answered. The member asking wanted to know whether to charge for each individual purchase before it’s made, and how to keep transaction fees from eating her profit. One designer’s answer covered both, and doubled as a full workflow:
“100% you should be putting these on your own card. First, create a work order (Studio Designer calls them proposals) for all the items in a room. If you can, include freight or add about 18% to cover it. Then after you present the design, present the work order. I like to give them a bottom line per room, which is within the budget we previously discussed. That way they don’t nit pick at the cost of individual items (but get a read on your client first. Sometimes they are the type of people who need to see details). Then collect the full amount up front. 100% of the cost, including your markup. No deposits. The whole thing. If you want to accept credit cards make sure your markup covers the service fee so don’t lose any money. Now you can pay your vendors on your own card, collect the airline points for yourself, and charge your clients for your time to manage procurement.”
@lsi_workshop
Break that down, and it answers the invoicing question directly: don’t charge per item as you go. Present a work order for the room, collect the full amount up front (including a markup that already accounts for card processing fees), then make the purchases. The client never sees a per-transaction fee because there isn’t one, it’s baked into the number they already agreed to on the work order.
That per-room, full-payment-up-front structure also solves the QuickBooks fee problem the member specifically raised. If you’re charging the client’s card for every individual purchase, you’re paying a processing fee on every individual transaction, and each one nibbles at your margin. If you collect one payment per room or per phase, calculated to already include your markup and a fee buffer, you’re processing fewer transactions, and you’ve already priced for the ones you do process.
Collecting 100 percent up front is the aggressive end of the range, and it is not the only workable version. It helps to know what working designers actually collect at signing before you decide where your own threshold sits.
Writing the Policy Into Your Contract
Once the account structure and the pricing math are settled, the last piece is making sure the contract actually says what you intend to do, in language a client can’t reasonably dispute later. Vague wording here is where designers get burned, not because the policy was wrong, but because it was never written down clearly enough to enforce.
At minimum, your contract language should state plainly that all purchases are made through your business, that pricing includes your markup and a processing or procurement fee, and that payment in full is required before you place any purchase order. If you’re using a per-room work order structure like the one described above, say so explicitly, and describe how and when the client will see and approve the total before you charge anything. It sits alongside the other contract clauses that protect an interior design business, and it belongs in the same review pass rather than bolted on later.
This is also where you decide, in writing, what happens if a client wants to pay by a method other than credit card. Several designers in the thread noted that checks and wire transfers avoid the processing fee question entirely, which is worth offering as an option even if credit card remains your default.
What Running Client Purchases Through Your Credit Card Actually Protects
The instinct to keep transaction fees from eating your profit is the right instinct. The mistake is treating it as a credit card problem when it’s really a pricing and process problem. Fix the pricing, so your markup already covers the fee. Fix the process, so client money and vendor payments never mix outside a dedicated account, and a card balance never sits unpaid past the day the client’s payment clears. Fix the contract, so the policy you’ve built is the one a client actually agreed to.
Do those three things and running client purchases through your own card stops being a source of quiet profit leakage and becomes exactly what it should be: a routine part of how you get paid for the procurement work you’re already doing. As one designer put it, the goal isn’t to justify the fee to the client. It’s to price it in, invoice it clearly, and move on to the next room.
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