Purchase price adjustment mechanics and dangerous wording

Alena Sharykava

05.04.2026 | 6 min read

Updated: 05.04.2026

I often see strong entrepreneurs lose money not because of bad business, but because of a poorly developed mechanism for purchase price adjustment in the SPA. purchase price adjustment sounds technical, but in practice it is about fairness and manageable risk. Since 2016 the COREDO team has been supporting transactions in the EU, the United Kingdom, Singapore, Dubai, the Czech Republic, Slovakia, Cyprus and Estonia, and my experience has shown: the right PPA structure in M&A deals saves months of disputes, reduces tax and currency risks and provides a predictable final calculation of the deal price.

I write this as a founder who goes through every closing together with clients. At COREDO we have one goal: maximum certainty for the buyer and fair protection of the seller’s position. In this article I will break down the mechanics of deal price adjustment, show real cases from the EU and Asia and give a practical SPA checklist so that your next closing goes without surprises.

Mechanics of PPA purchase price adjustment

Any purchase price adjustment (purchase price adjustment) starts with three blocks: cash-free debt-free, net working capital adjustment and the mechanics of accounting for capex and reserves. Within cash-free debt-free the parties record that the price is calculated without an excessive cash position and taking into account net debt. Defining net debt and cash-free debt-free requires care: whether to include lease liabilities under IFRS 16, deferred tax liabilities, interest accruals, overdraft credit lines — we always set out these items in detail in the SPA.

Working capital adjustment aligns the working capital to an agreed benchmark, which we call the working capital peg. If on the closing date the working capital is below the peg, the price decreases; if above — it increases. In seasonal deals we insist on a 12-month average rather than a single point-in-time date to avoid manipulations with cut-off and the shifting of expenses between periods.

The completion accounts mechanism is the classic post-closing true-up: we prepare a completion balance sheet as at the closing date, agree the accounting policies, and then perform the true-up calculation. The alternative is a locked box mechanism, where the price is fixed to a historical closed balance, and the seller provides a warranty of no leakage up to closing. A locked box suits situations where the business is stable and the buyer wants deal certainty and price protection; completion accounts are more flexible when working capital volatility is high.

Locked box vs completion accounts

The locked box vs completion accounts formula: what to choose depends on the data and the speed of the deal. If you have a strong controlling function and high-quality management accounts, a locked box saves time and reduces costs, but will require clear locked box leakage definitions and strict prohibitions on prohibited payments to the seller. If the reporting is weak or the sales mix is changing, completion accounts will provide a more accurate final calculation of the deal price.

At COREDO we perform sensitivity analysis on changes in net working capital and exchange rates, evaluate the NPV and IRR impact of adjustments, and only then recommend the structure. We often use a hybrid: a locked box for assets with stable margins and completion accounts for divisions with high volatility. This is an honest compromise between deal certainty and a fair PPA.

How to draft a price adjustment in an SPA

How to draft a price adjustment in an SPA is not about «copying a template». I always start with definitions and accounting policies reconciliation. We tie calculations to IFRS or to local standards, and separately record where IFRS vs local standards in a PPA may diverge (for example, revenue under IFRS 15 vs local cash recognition). Accrual accounting vs cash accounting issues we close with an explicit clause that all calculations are done on an accrual basis with normalization of non-recurring items.

Materiality and de minimis criteria in the calculation reduce noise. We specify materiality qualifiers and thresholds, de minimis and single claim thresholds, as well as basket and threshold: the basket and threshold for warranties. This removes unnecessary disputes over minor issues and leaves clear rules for important matters.

Representations and warranties: the skeleton of the SPA. I ask the seller not to hide problems, but to disclose them clearly in the disclosure letter. For the buyer, limitations of the seller’s liability are important: indemnities and caps, limitations of liability clauses, survival period of warranties. Formulations like ‘to the best of knowledge’ and their risks we analyze in detail and limit such qualifiers with facts and specific persons.

Material adverse change (MAC) is another anchor. If we include a MAC, we link it to real metrics: revenue drop of more than X%, loss of a key customer, license revocation. MAC should not become a bargaining tool, but should protect the buyer against severe adverse changes.

Post-closing true-up: timelines and protection

The post-closing true-up procedure relies on discipline of timelines. The purchase price adjustment timetable includes: the closing date, the deadline for preparing completion accounts, the period for the buyer’s questions, an independent expert in case of dispute and the deadline for payment or refund of funds. We fix the cut-off date and the timing of financial statements preparation unambiguously to prevent ‘double’ entries.

The calculation agent can be appointed by the seller, but I always secure post-closing control for the buyer: post-closing audit rights and audit access to books and records guarantee access to source documents and accounting systems. Rules of presentation for management accounts and a management accounts reliance letter protect the buyer from ‘cosmetic’ accounting during the transition period.

The role of an independent auditor in the true-up is important, but I prefer an independent expert determination with a narrow mandate and strict procedure. A dispute escalation ladder shortens the path to a resolution: negotiations CFO → expert → arbitration for PPA disputes. In complex cases we involve a forensic accounting review if the disputed items in the completion accounts go beyond normal accounting.

Taxes and Currencies: Where Money Is Lost

PPA in cross-border deals in the EU and Asia almost always runs up against cross-border tax structuring and transfer pricing adjustments. If a group has transfer pricing agreements in place, adjustments to working capital and margin can trigger additional assessments. Our solution, developed at COREDO,: synchronizing the PPA with current TP policies and adjusting intra-group SLAs before closing.

The impact of exchange rate fluctuations on price adjustment: another trap. The currency fluctuation clause and FX hedging in the purchase price protect the parties from currency swings between signing and closing. In contracts we fix the price currency, the hedge corridor and the rules for recalculation at true-up.

Statutory reporting implications in the EU affect the timing for preparing completion accounts and the process for verifying data. In jurisdictions with mandatory audit oversight we arrange the timetable so that the statutory audit doesn’t hold up the true-up, and we coordinate access to auditors with the seller.

Earn-out, holdbacks, payments: safe?

earn-out and price adjustment: a convenient tool, if synergies depend on the management team. earn-out modelling and KPIs we base them on metrics that are hard to manipulate: gross margin, IFRS revenue, net revenue excluding intercompany transactions, cash conversion. sensitivity analysis for earn-outs immediately shows where risks are embedded in the model.

risk management for contingent payments requires escrow and a holdback of part of the price. escrow release schedule, structuring holdbacks and escrow periods, clawback provisions – all this gives the buyer confidence and transparency to the seller. deferred consideration mechanisms and purchase price tranches need to be synchronized with taxes and bank covenants to avoid blocking payments.

I always include restrictions on changes to accounting policies during the earn-out period: controls to ensure the seller’s accounting policies are complied with, prohibitions on unusual discounts or artificially inflating expenses, as well as clear integration cost assumptions. This way we protect both parties from unfair adjustments.

Where PPA most often breaks

Best practices for preparing completion accounts start with accounting policies reconciliation and non-recurring items normalization. We normalize EBITDA, exclude one-off penalties, deal costs, restructuring expenses and adjustments for extraordinary items. Intercompany eliminations and the accounting for inter-entity transactions in the price calculation must be documented and agreed in advance.

accruals and provisions treatment: a constant source of disputes. We agree how we recognise provisions for doubtful receivables, accrued vacation pay, management bonuses and warranty provisions. A correct net debt calculation methodology resolves issues relating to deferred payments and interest.

Integration, synergies and price in finance

The dynamics of synergies and the impact on the final price should be assessed before signing. normalized EBITDA adjustments, capital expenditures adjustments and integration cost assumptions we build into the model to see NPV and IRR impact of adjustments. If synergies depend on regulatory approvals or IT system migrations, we set milestone payments with clear KPIs.

deal certainty and price protection are important to both. I use currency collars, representations insurance (RWI where available) and strict procedural safeguards for post-closing adjustments. This way the buyer gains price certainty, and the seller – a predictable exit.

COREDO cases from the EU, UK and Asia

Data room: tools and automation

data room diligence for PPA: it’s not just “upload the reports”. We require a breakdown of receivables with aging, inventory detail, a summary of intercompany settlements and confirmation of balances with key suppliers. We verify the accuracy of management representations through samples of source documents and independent inquiries.

Checklist for SPA and PPA

• Definitions: net debt, cash-free debt-free mechanics, net working capital definition and working capital peg with examples.
• Accounting policies reconciliation: IFRS vs local standards in PPA, accrual accounting, non-recurring items normalization.
• completion accounts mechanism: purchase price adjustment timetable, timing of financial statements preparation, completion balance sheet and cut-off date.
• locked box mechanism: locked box leakage definitions, prohibitions on payments to the seller, interest on leakage.
• Earn-out: earn-out modelling and KPIs, sensitivity analysis for earn-outs, clear integration cost assumptions.
• Warranties and liability: representations and warranties, indemnities and caps, limitations of liability clauses, basket and threshold, de minimis and single claim thresholds, survival period of warranties, MAC.
• Taxes and currencies: tax indemnity scope, tax gross-up clauses, cross-border tax structuring, transfer pricing adjustments, currency fluctuation clause, FX hedging in purchase price.
• Procedures and disputes: post-closing audit rights, audit access to books and records, management accounts reliance letter, dispute escalation ladder, independent expert determination vs arbitration.
• Risk control: anti-avoidance and misrepresentation remedies, double-counting and offset risk, intercompany eliminations, accruals and provisions treatment, adjustments for extraordinary items.
• Escrow and holdbacks: escrow and retention of part of the purchase price, escrow release schedule, structuring of holdbacks and escrow periods, clawback provisions.
• Regulatory matters: statutory reporting implications in the EU, regulatory approvals and price adjustments, sanctions screening impact on deals.

How COREDO reduces client risks

COREDO’s practice confirms: robust preparation for a PPA starts long before signing. We combine legal structuring, AML consulting, Licensing and financial modelling into a single workflow so that the price reflects the reality of the business, not illusions. In transactions involving licenses for payment services, crypto and forex we combine assessment of regulatory resilience with price adjustments so as not to pay for assets that will not generate income because of regulatory constraints.

The COREDO team works cross-jurisdictionally, taking into account statutory EU requirements, the practices of the FCA, MAS, DFSA and local regulators in Central Europe. We involve independent auditors when that increases the parties’ confidence, and set up arbitration for PPA disputes where the court system is slow. Our financial analysts use BI tools for PPAs, and our lawyers draft contracts with clear, enforceable wording without “hidden pitfalls”.

It’s important for me to be honest: there is no perfect deal, and risks never disappear entirely. But they can be measured, broken down and tied to a price adjustment, to escrow and to an earn-out so that both parties achieve a predictable outcome.

The deal price must reflect the business.

Adjusting the purchase price is not a formality and not an accounting game. It is a a tool to protect interests and a way to turn uncertainty into manageable deal parameters. When I negotiate on behalf of a client, I secure clear definitions, transparent calculations and procedures that eliminate “surprises” after closing. It’s discipline, not magic.