By Marcus Webb • 2025-09-29

The buyer’s order (or purchase agreement) lists the vehicle price, discounts, TTL, dealer/doc fees, and add‑ons. Understanding each line helps you challenge errors and remove unwanted extras.

Key Lines

Use the calculator

Next Steps

Ready to compare quotes? Use the calculator to build a clean, line‑item OTD.

Open the OTD Calculator

Line‑Item Audit Checklist

Before You Sign

Ask for a final, printed buyer’s order. Keep copies of all pages and any we‑owe statements for items due after delivery.

Buyer’s Order FAQs

Can I remove an add‑on already installed?

Often yes—negotiate removal or a price offset.

Is the doc fee taxable?

Local rules vary. The calculator’s notes help you model typical cases.

Updated Sep 29, 2025

Scan the document for duplicate line items that could be counted twice under different labels. It’s common to see similar terms for prep or protection—confirm whether they represent distinct services.

Double‑check VIN, trim, packages, and mileage if the vehicle is not brand new. Small discrepancies can cascade into plate fees or disclosure issues later.

Before signing, ask the finance manager to walk through the calculation aloud. Hearing the steps helps catch mistakes and ensures you understand the numbers you are authorizing.

Supplement added Sep 29, 2025

Red Flags to Watch For on a Buyer's Order

  • Duplicate fees that appear under different labels.
  • Add‑on products you did not request but are pre‑checked or pre‑printed.
  • Numbers that don't match your agreed purchase price, trade‑in value, or incentives.
  • Missing line items for taxes or registration that will appear later.

If something looks off, pause and ask the finance manager to explain the line before you sign.

Organizing Your Notes While You Review a Buyer's Order

Having a simple note structure helps you catch discrepancies without losing track of what you've checked.

  • Create sections in your notes for price, taxes, fees, add-ons, and lender terms.
  • Write down the numbers you expected from your own calculations before looking at the document.
  • Mark each line as "matches," "different," or "needs explanation" as you go.

That way, you can quickly tell whether the document aligns with what you agreed to earlier.

Choosing the Right Moment to Review Your Buyer's Order

The timing of your review can shape how clearly you think and how much you notice.

  • Aim to review when you're not rushed, hungry, or exhausted from a long workday.
  • Ask for a printed or emailed copy so you can step away from the desk if needed.
  • Give yourself explicit permission to pause and come back the next day if something feels off.

Good decisions are easier when your mind and body have enough bandwidth.

When to Ask for a Second Set of Eyes

Sometimes another person can spot details you're too tired or stressed to notice.

  • Consider asking a trusted friend or family member to review the buyer's order with you.
  • Walk them through your understanding of each major section before you ask what they see.
  • Use their questions as a guide for what to clarify with the dealership.

You're still the decision maker—the extra perspective simply helps you see more clearly.

Storing Your Buyer's Order and Related Documents

Good recordkeeping helps if questions or issues show up later.

  • Keep digital and paper copies of your buyer's order and finance contract together.
  • Attach your own notes about what each major number represents.
  • Store everything in a place you'll remember when it's time to buy again.

Future you will be glad you left a clear trail.

Common Questions to Ask While You Review a Buyer's Order

You never have to apologize for wanting clarity before you sign.

  • "Can you walk me through how you got from the sale price to this OTD figure?"
  • "Which of these fees are required, and which are optional products or services?"
  • "If I removed this add-on, what would my new OTD and payment look like?"

Questions like these keep the focus on understanding rather than pressure.

Doing a Quick Body Check While You Review

Your body can signal when something in the paperwork doesn't sit right.

  • Notice if your shoulders tense or your breathing gets shallow as you read certain sections.
  • Use that as a cue to slow down, ask a question, or take a short break.
  • Remember that physical stress is a valid reason to pause before signing.

Combining your logical and physical reactions can help you catch details that deserve more attention.

A Simple Checklist to Use While You Read

This checklist doesn't replace professional advice, but it helps you stay organized.

  • Confirm that the vehicle details—VIN, trim, and options—match what you agreed to.
  • Check that trade-in values, rebates, and down payments appear correctly.
  • Scan for any add-ons you don't recognize and mark them for questions.

Working through a short list like this can make dense paperwork feel more manageable.

Buyer's order line items explained
Line itemWhat it isNegotiable?
Selling priceFinal agreed vehicle priceYes — negotiate before finance office
Trade-in allowanceDealer's offer for your tradeYes — get competing offers
Sales taxState/local tax on taxable amountNo — set by law
Title feeState title transfer feeNo — set by state
RegistrationState/county registration feeNo — set by government
Doc feeDealer paperwork feeSometimes — varies by state
Add-on productsProtection plans, warrantiesYes — decline or negotiate

Frequently Asked Questions

What is a buyer's order?

A buyer's order (also called a purchase agreement or sales contract) is the itemized document that lists every charge in your vehicle purchase: selling price, trade-in credit, discounts, taxes, title, registration, documentation fee, and any add-on products. It's the most important document in a car deal — review every line before signing. Ask for it before you enter the finance office and take your time reviewing it.

What line items should I look for on a buyer's order?

Key lines to verify: vehicle selling price (matches what you negotiated), sales tax (correct rate and taxable base), title fee (state-set amount), registration fee (state and county amount), documentation fee (matches what dealer disclosed), and any add-on products (paint protection, GAP insurance, extended warranty). Look specifically for anything you didn't agree to — these are often added by the finance office as a default.

What add-ons should I decline on a buyer's order?

Common add-ons with high markup and low value: paint/fabric protection ($200–$800 charged, worth $50 of actual product), nitrogen tire fill ($150–$300, air is free), VIN etching ($200–$400, DIY kits cost $20), paint/dent protection plans (often duplicated by warranty), credit life/disability insurance (usually poor value — shop separately if needed). GAP insurance and extended warranties have genuine value for some buyers but should be priced against third-party alternatives first.

How do I verify the sales tax calculation on my buyer's order?

Sales tax = taxable amount × tax rate. The taxable amount is usually the vehicle selling price minus your trade-in value (in most states), minus any pre-tax rebates. Verify the tax rate matches your state and city/county — rates vary significantly by locality. If you have a trade-in, confirm it's reducing the taxable base, not just the total. Use the OTD calculator on this site to cross-check the tax calculation before signing.

Can I change my mind after signing a buyer's order?

In most states, a signed buyer's order is a binding contract — there is typically no "cooling off" period for vehicle purchases as there is for some other consumer contracts. Review everything carefully before signing. If you discover an error after signing, contact the dealer immediately — most will correct genuine mistakes. If you discover add-ons you didn't agree to, you have grounds to request cancellation of those specific items, though the dealer's willingness varies.