Why a price list update is more than a supplier email
In a Swiss SME that buys raw materials, components or recurring services, the supplier price list is the silent reference underpinning quotes, purchase orders and selling prices. When the supplier announces a price increase, introduces new item codes or changes quantity discounts, year-end rebates and payment terms, the effect ripples through multiple documents: open order, partial delivery, credit note, VAT invoice and, finally, gross margin by customer or product line.
Without a reconciliation process, mismatches appear between what was ordered and what was invoiced, manual accounting adjustments and commercial decisions based on outdated costs. In a typical Swiss B2B context — framework contracts, the supplier’s general terms of sale, indexation clauses and invoicing in francs with correct VAT rates — documentary accuracy protects both liquidity (disputed or delayed payments) and credibility with customers who received fixed-price offers.
This guide explains how to structure the management of price list changes: from notification through to accounting verification, with attention to operational deadlines and VAT treatment compliant with federal law.
Types of change and impact on documents
Not every price change behaves the same way across the order-to-invoice cycle. Classifying it immediately avoids applying the new list in the wrong place:
| Type of change | Effective date | Documents to align | Typical SME risk |
|---|---|---|---|
| General catalogue price increase | Stated date (e.g. 1st of the month) | Internal price list, open orders, customer quotes | New price applied to orders confirmed before the effective date, or invoicing not matching the agreed price |
| New code / item substitution | Immediate or when stock is exhausted | Item master data, bills of materials, warehouse | Double posting or inconsistent stock valuation |
| Quantity discount or revenue tier | Retroactive or prospective (contract) | Cumulative orders, credit notes, accruals | Margin overstated until the credit note |
| Indexation (raw materials, energy) | Contract formula (quarter, half-year) | Framework contract, call-off orders, invoices | Wrong index applied or no written proof |
| Transport / packaging surcharge | Per shipment or order threshold | Order, delivery note, invoice (separate line) | Cost hidden in unit price and distorted margins |
| Payment terms change | Next invoice or contract renewal | Payment schedule, cash flow, any cash discount | Loss of cash discount (Skonto) due to new terms not recorded |
B2B contract, price list and proof of applicable price
In Switzerland, price determination in business-to-business relationships depends on the hierarchy between individual contract, accepted general terms and published price list. Reconciliation requires three archived, dated references:
Price locked on the order
If the purchase order shows unit and total prices accepted by the supplier (written order confirmation or email referencing the order number), that price generally binds invoicing for the quantities ordered, unless contract clauses say otherwise (indexation, force majeure).
Keep PDF confirmations and price list attachments “valid for order no. …” in the supplier file: in a dispute, documentary traceability is decisive.
List price on invoice date
With “price of the day” contracts or without explicit confirmation, the price list in force at shipment or invoicing applies, as set out in the supplier’s terms. Here the SME must update the internal list promptly and alert sales staff that quotes in progress may need revision.
Document the price list version (revision number, PDF date) linked to every order created after the update.
Order–delivery–invoice reconciliation: step by step
Reconciliation is not an isolated “end of month” check: it is a three-way match linking quantities, prices and VAT amounts. A workflow suited to SMEs with a lean back office can be structured as follows:
- Change register: on receipt of the supplier notice, open a record (ticket or table row) with effective date, scope (all items or one product family only), reference to the price list file and internal owner.
- Purchasing master data update: import or enter new net prices; during a transition period also keep previous prices with an end validity date, for pending orders and deliveries.
- Open order scan: for each order not yet fully invoiced, check whether the order date or expected delivery date falls before or after the change; renegotiate or issue supplementary orders if the supplier applied the new list without agreement.
- Match on invoice receipt: line by line, compare order price, delivery note price and invoice price; flag variances above a threshold (e.g. 0.5% or CHF 5 per line) before payment approval.
- Credit note or adjustment: for supplier errors, request a corrective document; for commercial agreements (retroactive discount), post the credit note linked to the original order so average inventory cost is not altered arbitrarily.
- Administrative closure: archive the reconciliation with outcome (OK / disputed / adjusted) to support internal review and any tax audits on deductibility and correct period allocation.
Margins and selling prices after a price increase
Updated purchase cost is not limited to accounts payable: it feeds pricing policy and profitability analysis. Two approaches consistent with SME management:
Target margin by item or customer
Define a markup factor (e.g. cost × 1.35) or a minimum margin percentage by category. When the supplier list changes, recalculate catalogue selling prices or flag lines below threshold to sales. Accountex and similar tools let you link updated standard cost and selling price to monitor margin erosion without waiting for year-end close.
Binding quotes already issued
If you guaranteed a price to the customer while the supplier raises prices, quantify the impact per job (cost delta × expected quantity). Management decides whether to absorb, renegotiate with the customer or change specifications. Record the decision: it avoids discovering structurally loss-making jobs at final accounting because an increase was not tracked.
For stocked goods, consider whether to apply the new cost at purchase (FIFO or weighted average cost, per your accounting policy) and whether a period-end inventory value adjustment is needed when increases are widespread and persistent.
VAT, accrual period and accounting entries
Purchase invoices with adjusted prices must show the correct VAT rate (standard 8.1%, reduced 2.6%, special 3.8%, or exempt with justification, under the VAT Act). Price reconciliation does not change the principle: deductible input tax is based on compliant documents; a supplier credit note reduces taxable base and VAT in the period of the corrective document.
In ordinary Swiss accounting, charge purchases to the appropriate expense or fixed-asset account in the invoice period (or delivery period, if you apply the accrual principle consistently). Variances between order and invoice that are not approved should not be paid: record disputed liabilities only if your procedure requires it, so costs are not artificially inflated.
Keep price lists, order confirmations and price update logs for ten years from the end of the financial year, in line with retention obligations under the Code of Obligations (Art. 958f) and the VAT Act; they support dialogue with your trustee and defence of margins and VAT deductions in an audit.
Who does what: purchasing, sales and administration
| Activity | Typical owner | Expected output |
|---|---|---|
| Receipt and validation of price list notice | Purchasing / owner | Change register + versioned price list archived |
| Price update in ERP or accounting | Back office | Master data with validity dates; report of orders to review |
| Review of quotes and sales catalogue | Sales + management | List of prices to adjust; jobs at margin risk |
| Three-way match and payment approval | Administration | Invoice approved or dispute documented |
| Margin impact summary / customer price review | Owner / controller | Decision communicated and tracked before the next active billing cycle |
Quick checklist when a new price list arrives
- 1.Check effective date, currency (CHF/EUR) and whether prices are net or gross of VAT.
- 2.Compare with framework contract: are there caps, minimum notice periods or indexation formulas?
- 3.Update internal price list with version and link open orders and pending deliveries.
- 4.Inform sales and production about obsolete codes or item substitutions.
- 5.Recalculate minimum margins and plan customer price adjustments or temporary absorption.
- 6.On the first invoice cycle after the increase, run a strict match and close disputes within the agreed payment deadline.
Conclusion: treat the price list as master data, not a forgotten attachment
Supplier price list changes are recurring events in an economy where energy, logistics and raw material costs are under pressure. A Swiss SME that systematically reconciles orders, deliveries and invoices — and links every update to its pricing and margins — reduces payment errors, avoidable B2B disputes and balance sheet surprises.
Centralising supplier master data, documents and postings in integrated accounting software such as Accountex makes it easier to maintain price history, approve invoices with awareness of true cost and work with your trustee on figures already aligned with contractual reality.