I took over purchasing for our office in 2020. Thought I had it figured out. Then I ordered what I thought was a standard AC compressor for the break room—and the invoice was 40% higher than the quote. The salesman just shrugged: “Setup fee. Handling. Environmental surcharge.”
That was the first time I realized most vendors aren't hiding the costs. They’re just not telling you about them unless you ask. Since then—processing ~80 orders a year across 12 vendors—I’ve built a checklist. It’s not perfect, but it catches the gaps before the invoice does.
When to Use This Checklist
Any time you’re buying something that isn’t off-the-shelf retail—custom printed materials, equipment parts, certification services, replacement electronics—this applies. If the vendor can add a line item, assume they will.
Here are the 4 steps I run through before approving any significant purchase.
Step 1: Ask “What’s NOT Included?” Before Asking the Price
Standard human behavior: we ask the price first. Then we get the sticker shock from add-ons. Flip the order. Ask for a complete list of potential fees before you hear the base price.
My script: “Can you send me a full breakdown of everything I might be charged, including optional or situational fees?”
Common things they don’t mention until the invoice:
- Setup or tooling fees – For custom printing (plates, dies) or specialty parts.
- Handling/surcharges – Fuel surcharges, environmental fees, minimum order processing.
- Shipping surcharges – Residential delivery, liftgate service, inside delivery.
- Rush fees – Sometimes buried in the fine print.
- Certification fees – For things like forklift operator training, the test fee might be separate from the course.
I knew I should always get a full fee schedule upfront. But for my first few years I thought “what are the odds?” Well, the odds caught up with me when a rush order for conference materials ended up costing 60% more than the base quote. Now I don’t approve a PO until I see the complete list.
Step 2: Verify the Payment Terms & Billing Format
This one bit me hard. Found a great price on a replacement AirPods Pro case for a staff member—$28, nearly half the Apple Store price. Ordered 2. Vendor couldn’t provide a proper invoice (handwritten receipt only). Finance rejected the expense report. I ate $56 out of my department budget.
Before you commit, confirm:
- Invoice format – Do they send a PDF? Is it itemized? Does it include their tax ID?
- Payment methods – Do they accept corporate credit cards? Net 30 terms? Or is it only wire transfer or COD?
- Late payment penalties – Some vendors tack on 1.5-2% monthly. It adds up.
- Cancellation/return policy – Is there a restocking fee? A write-off after 30 days?
I’ve learned to say: “Can you send me a sample invoice so I can show our finance team?” If they hesitate, that’s a red flag.
Step 3: Get the “Total Cost to Door” in Writing
Base price + shipping + tax + fees. Simple, right? You’d be surprised how many vendors quote a price that excludes shipping, then shipping adds 30%. Especially for heavy items like AC compressors or bulk printed materials.
Ask for this exact sentence in writing:
“The total cost to [your shipping address] for [exact quantity and specs], including all taxes, shipping, and any applicable fees, is [amount].”
If they refuse to put it in writing? Walk. Or at least budget a 20% cushion.
The best part of getting this systematized: no more 3am worry sessions about whether the order will arrive under budget. There’s something satisfying about a vendor who lists all fees upfront—even if the total looks higher—because it usually costs less in the end.
Step 4: Set a Verification Process (So You Don’t Forget)
We didn’t have a formal verification process for small purchases—anything under $500. Cost us when an unauthorized rush fee showed up on an invoice because the sales rep added it “for convenience.” The third time that happened, I created a simple form.
My one-page checklist (takes 5 minutes):
- [ ] Full fee schedule received and reviewed
- [ ] Invoice format confirmed acceptable for finance
- [ ] Total cost to door in writing
- [ ] Payment terms verified
- [ ] Return/cancellation policy understood
I print it, staple it to the quote, and keep it in the vendor file. When a new admin takes over (maybe me in a few years), they’ll know exactly what to check.
Watch Out for These Common Mistakes
Mistake #1: Assuming a “local” vendor is simpler. I tried going local for a forklift certification for two of our warehouse guys. The local company quoted $180 per person. Then added a $50 “certification processing fee” per person. Plus $25 for the manual. I ended up paying $485 vs. the $360 I budgeted. Should have asked upfront.
Mistake #2: Trusting verbal promises. The vendor who says “oh, the shipping is usually free”—ask for it in writing. “Usually” isn’t a guarantee.
Mistake #3: Skipping the verification for small items. That $28 AirPods case? I skipped the checklist because “it’s just $28.” That logic cost me $56. The scale of the purchase doesn’t matter—the process does.
Look, I’m not saying these steps will eliminate every surprise. Vendors will still find new fees. But in my experience, the ones who transparently lay out costs upfront are the ones you can trust. The ones who hide them? They’re counting on you not asking. Don’t let them.
