A rebate you have not confirmed is not a saving. It is a guess sitting in your synergy model. The acquired company may earn a meaningful rebate each year by crossing a volume tier. If you move half its purchases to your master agreement, it drops below the tier and the rebate disappears, along with the saving you were trying to capture.
Co-op marketing funds and growth incentives work the same way. They depend on the buyer's identity and the buyer's history. Both change in an acquisition, often in ways the supplier does not announce. Review the terms before you consolidate, as part of the add-on plan in integrating add-ons into a platform.
Get the rebate terms in writing
Collect every program: volume rebates, growth rebates, early pay discounts, co-op funds, and marketing allowances. For each one, note the tiers, the measurement period, whether it is paid in cash or credit, who qualifies, and how the supplier counts the purchases.
Ask whether the program is based on purchases by legal entity, by account number, or by parent. That detail decides what happens when the entities combine.
Ask how the supplier will treat the acquisition
Some suppliers combine purchases under common ownership and give you the benefit of the higher tier. Some treat the acquired company as a separate account until the next program year. Some reset history. Some use the occasion to reprice.
Ask directly, and get the answer in writing. A supplier who says the rebate will continue is a supplier whose account manager may be gone next year. The written answer is protection.
Model before you move
For each supplier, build a simple model. Current purchases by company, the tier each hits, the rebate earned, and the combined result if you shift volume. Test several scenarios. The best result is often to keep one company's purchases where they are and add volume at the margin.
Include the timing. Rebates are usually paid after the period ends, so a mid year change can hurt the measured year. Consider moving at the start of a program year.
Combine with care
If combining purchases pushes both companies to a higher tier, the gain can be larger than any price negotiation. If the supplier will not combine, consider whether to move volume to one entity. Be careful about creating accounting or legal complications in the process. For the commitments that often accompany rebate programs, read minimum purchase commitments you inherited.
For the broader question of whether the acquired terms should move at all, go to vendor terms better than yours. I count a rebate only when the supplier has confirmed it in writing.
Sequenced list: protect rebates through the integration
Complete before moving volume. Each step has an owner.
- List every rebate, co-op, and incentive program by supplier, with tiers and measurement periods. Owner: the purchasing lead.
- Confirm in writing whether the supplier will combine, split, or reset on the acquisition. Owner: the purchasing lead.
- Build the model: current purchases, tier, rebate, and combined scenarios. Owner: finance.
- Choose the timing, ideally at the start of a program year. Owner: the finance lead.
- Move volume in steps and track against each tier monthly. Owner: the purchasing lead.
- Record expected rebates in the cash plan and the synergy ledger. Owner: finance.
- Confirm payment when due, and chase any shortfall. Owner: finance.
Questions to ask the supplier's account manager
Ask five things in one meeting and write down the answers. Will purchases of both companies be combined for tier purposes, and from what date? Will the history for the acquired company carry over? Does the program change if the entity name or tax ID changes? How and when is the rebate paid, and is it credited or paid in cash? Is anything in the program at the manufacturer's discretion?
That last question matters most. Discretionary funds can be cut with no breach of contract. A rebate that is a written term is far more reliable than a marketing allowance that depends on goodwill.
Follow the meeting with a short email that restates what you understood, and ask the account manager to correct anything wrong. That email is the closest thing you will have to a commitment, and it protects both sides when the account manager changes. File it with the supplier agreement, and put the next program review date on the tracker.
Do not count a rebate you have not confirmed
A rebate that is assumed in the model and not confirmed by the supplier is a wish. Count only what is documented. If an account manager promises it by phone, ask for the email. If the program changes, adjust the plan.
The framework in the post-merger integration playbook separates what is bankable from what is aspirational. Rebates, more than most items, deserve that treatment.
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Questions
Do vendor rebates carry over after an acquisition?
Not automatically. Rebates and co-op funds depend on tiers, on the entity or account that qualifies, and on the supplier's treatment of the acquisition. Get the program terms and the supplier's position in writing, model purchases by tier before you move volume, and consider timing the change for the start of a program year.
Why would a rebate disappear after an acquisition?
Moving purchases can drop a company below its volume tier, or the supplier may reset history or treat the acquired company as a new account.
Should I trust a phone promise about rebates?
Ask for it in writing. Account managers change, and verbal promises are hard to enforce.
When is the best time to move volume?
Often at the start of a program year, so the measured year is clean.