Locked Box vs Completion Accounts in the Czech Republic 2026: Price Mechanisms, Leakage & Interest Explained

Locked box vs completion accounts czech republic is the single most consequential pricing decision that private equity sponsors, sell-side advisers and CFOs confront when structuring a Czech share purchase agreement in 2026. Sustained financing costs and valuation volatility across Central and Eastern Europe have made the trade-off between price certainty and accounting-based true-ups a live commercial negotiation rather than a procedural afterthought. This guide sets out, in practical detail, how each mechanism works under Czech law, how leakage is defined and evidenced, how ticking fees and interim interest are calculated, and how working capital adjustments play out in local deals. It is written for deal teams who need a clear, jurisdiction-specific framework for choosing and drafting the right price mechanism.

Throughout, we anchor commercial points to Czech statutory sources and current market practice.

Quick comparison, locked box vs completion accounts czech republic (executive summary)

A locked box fixes the equity price by reference to a historic, agreed balance sheet (the “locked box accounts”) at a defined locked date (rozhodný den). From that date the economic risk and reward of the target pass to the buyer, and the seller undertakes not to extract value, “leakage”, from the business before closing. The headline consideration is known at signing, so there is no post-completion recalculation of the price itself.

A completion accounts mechanism, by contrast, fixes an estimated price at signing and then adjusts it after closing by reference to accounts drawn up as at the completion date. The adjustment typically turns on net debt and a working capital peg, so the final consideration is only known weeks after the deal closes. The mechanism rewards accuracy at the cost of certainty, and it introduces a post-closing review, determination and potential dispute phase.

When weighing locked box vs completion accounts czech republic, the commercial choice reduces to a familiar tension: certainty and speed versus precision and protection against balance-sheet movement. The table below summarises the differences that matter most to Czech deal teams.

How each mechanism works (detailed mechanics)

Understanding the mechanics is essential before negotiating either structure. Both are contractual constructs supported by general Czech contract law under the Civil Code (Act No. 89/2012 Coll.), which governs how the parties’ obligations, remedies and interpretation principles operate. The differences lie in timing, the accounting basis and the allocation of risk between signing and closing.

Locked box mechanics in locked box vs completion accounts czech republic

The defining feature of a locked box is the locked date (rozhodný den), a historic balance sheet date, usually the last audited or management year-end or quarter-end, by reference to which the equity price is calculated. From the locked date onwards, the buyer is treated as the economic owner. The seller warrants the condition of the locked box accounts and covenants that no value will leave the business other than through agreed “permitted leakage”.

Between the locked date and closing sits the leakage period. This is the window during which the seller must run the business in the ordinary course and refrain from extracting value. Any prohibited extraction is captured by a leakage indemnity: the buyer is typically entitled to a koruna-for-koruna (or euro-for-euro) indemnity for leakage, usually without caps or baskets, reflecting that leakage is a direct reduction of the fixed price the buyer agreed to pay.

The seller’s protection is the leakage claim period, a defined window after closing within which the buyer must notify leakage claims. The length is a matter of negotiation. After this period the seller’s exposure falls away, giving sellers the certainty they prize.

Because the buyer carries the economic benefit from the locked date but pays only at closing, sellers frequently negotiate a ticking fee or interim interest to compensate for the value accrued but not yet paid. A short, typical formulation reads: “The Purchaser shall pay interest on the Locked Box Price at [X]% per annum, accruing daily from the Locked Date to Completion, payable at Completion.” This clause converts the time value of the deferred consideration into a measurable payment.

Czech-specific issues deserve attention. Distributions, dividends and intra-group transfers that may constitute leakage are also constrained by the Business Corporations Act (Act No. 90/2012 Coll.), which regulates corporate distributions and the duties of members of corporate bodies. A dividend that is permitted leakage under the SPA must still comply with the statutory solvency and distribution rules, and the statutory duty of care (péče řádného hospodáře) may be engaged where value is extracted close to a change of control. Sample seller representations will confirm that the locked box accounts were prepared in accordance with the stated accounting policies and that no leakage has occurred since the locked date.

Completion accounts mechanics under completion accounts czech law

Completion accounts run on a timetable rather than a single historic snapshot. The typical sequence is: the buyer (or seller, depending on who controls preparation) draws up draft completion accounts as at the completion date within an agreed period after closing, delivers them for review, the other party reviews and raises objections within a defined window, and any unresolved items are referred to determination.

The economic heart of the mechanism is the working capital peg (or target) and the net debt position. The final price is adjusted up or down depending on how actual completion-date working capital compares with the agreed peg, and how actual net debt compares with the assumed figure. A simple true-up formula might provide that the consideration is increased by the amount by which completion working capital exceeds the peg, and decreased by any shortfall, with a corresponding koruna-for-koruna adjustment for net debt.

Disputes are commonly resolved by expert determination, typically an independent accounting firm acting as expert and not as arbitrator, or, less commonly, by arbitration or the courts. Czech case law on contractual interpretation and the standards applicable to determinations by a third party informs how such clauses are construed, so the drafting must be precise about the accountant’s mandate, the accounting policies to be applied, and the finality of the determination. Timelines are negotiated between the parties: a common pattern allows a defined number of days for preparation, a further period for review, and an additional period for expert determination.

Leakage in Czech SPAs, definition, permissibles and evidence

Leakage is the concept that makes or breaks a locked box. It denotes any transfer of value from the target to the seller or its connected parties during the leakage period. In Czech SPAs, leakage categories typically include:

• Dividends and distributions. Any dividend, return of capital or other distribution declared or paid to the seller after the locked date.
• Management and monitoring charges. Fees paid to the seller or its affiliates for management, advisory or monitoring services.
• Related-party transactions. Payments under contracts with seller-connected entities on non-arm’s-length terms.
• Value extraction. Asset transfers, waivers of amounts owed to the target, or the assumption of seller liabilities.
• Transaction costs. The seller’s advisory, legal or bonus costs borne by the target.

Against this sits the permitted leakage list, payments the parties agree are acceptable and will not trigger an indemnity. These commonly include ordinary-course trading payments, salaries and benefits consistent with past practice, and specifically agreed dividends. Czech drafting usually sets out permitted leakage as an exhaustive schedule with defined amounts or caps and clear time windows, so there is no ambiguity about what the buyer has priced in.

The evidence standard is critical. To prove leakage, the buyer relies on accounting entries in the target’s ledgers, board and shareholder minutes authorising distributions, bank statements evidencing payments, and intercompany reconciliations. Because leakage claims are contractual, the buyer must establish the breach and quantify the loss. The remedies flow from the SPA and from general contract principles in the Civil Code (Act No. 89/2012 Coll.), which provide for damages and, where agreed, set-off against consideration. Where distributions are involved, the Business Corporations Act (Act No. 90/2012 Coll.) can also be relevant to whether the distribution was lawfully made in the first place.

Industry observers note that the sharpest leakage disputes in Czech deals tend to arise not from obvious dividends but from subtle related-party arrangements and management charges that straddle the ordinary-course line. The practical lesson is to define permitted leakage tightly and to require the seller to deliver a leakage statement shortly before closing, supported by underlying documentation.

Interest, ticking fees and interim economics (locked box focus)

Ticking fees and interim interest are where the locked box vs completion accounts czech republic debate becomes an arithmetic negotiation. Because the buyer takes the economic benefit from the locked date but settles at closing, the seller argues it is effectively financing the buyer during the leakage period. The ticking fee compensates for that.

There are three common market approaches:

• Flat percentage. A fixed annual rate applied to the equity price, accruing daily from the locked date to closing.
• Stepped rate. A rate that increases if closing is delayed beyond a target date, incentivising a prompt completion.
• Reference-linked rate. A rate anchored to a market benchmark plus a spread, reflecting the seller’s cost of capital or the target’s borrowing cost.

The legal basis for charging a ticking fee is purely contractual: there is no statutory default entitling a seller to interim interest, so the clause must be expressly drafted. The Civil Code (Act No. 89/2012 Coll.) governs how the contractual interest obligation is interpreted and enforced. Parties increasingly look to the Czech National Bank’s published rates and macro commentary as a neutral reference point for financing costs when calibrating the fee.

Negotiation points that materially affect value include whether interest compounds or is simple, the exact accrual start date (locked date versus signing), whether there is a cap on the total fee, and how the fee interacts with permitted dividends, a dividend paid during the period should usually reduce the base on which the fee accrues to avoid double compensation. The likely practical effect of higher sustained financing costs is that sellers press harder for reference-linked rates while buyers push for caps and stepped structures tied to a long-stop date.

Working capital adjustments and accounting considerations

Working capital adjustments are the engine of completion accounts and a frequent source of disagreement. The central choice is between a peg (a fixed agreed figure derived from historic normalised working capital) and a target (a defined level the business should carry at completion). In either case the adjustment moves the price up or down by the difference between actual and reference working capital.

Normalisation is key. The parties strip out non-recurring, seasonal or exceptional items so that the peg reflects the genuine ongoing working capital needs of the business. Seasonality matters acutely in Czech industrial and consumer targets, where a completion date near a seasonal peak or trough can distort the figure unless the peg is set on a comparable basis.

Accounting policies drive outcomes. Whether the accounts are prepared under IFRS or Czech accounting standards affects the treatment of provisions, revenue recognition, lease accounting and inventory valuation. A completion accounts clause should specify a hierarchy, the SPA-defined policies first, then the target’s consistent historic policies, then the applicable accounting framework, so there is no gap for the parties to exploit.

A simplified worked example illustrates the mechanics. Suppose the agreed working capital peg is CZK 50 million and completion accounts show actual working capital of CZK 56 million. The buyer has received CZK 6 million more working capital than priced, so the consideration is increased by CZK 6 million. If, instead, completion working capital were CZK 44 million, the price would fall by CZK 6 million. Net debt is adjusted on the same koruna-for-koruna basis: higher-than-assumed debt reduces the equity price koruna for koruna.

Localised traps deserve a flag. Withholding tax on intercompany balances, VAT timing, and the correct treatment of debt-like items such as pension-style liabilities or deferred payments can swing the adjustment significantly. Deal teams should map these items to a clear debt-like / working capital allocation schedule in the SPA to prevent re-characterisation arguments in the review phase.

Commercial trade-offs, who prefers which and why (decision checklist)

The locked box vs completion accounts czech republic decision rarely has a single right answer; it depends on the deal profile. Sellers generally prefer a locked box because it delivers price certainty, a clean exit and no post-closing adjustment risk, particularly attractive in competitive auctions where sellers can dictate terms. Buyers often prefer completion accounts when they want precision, when diligence has been limited, or when the balance sheet is volatile and a fixed historic price could overstate value.

The following factors should steer the choice:

• Diligence depth. Thorough financial diligence and reliable, recent audited accounts favour a locked box; thin diligence favours completion accounts.
• Balance-sheet volatility. Stable, predictable working capital supports a locked box; large swings favour completion accounts.
• Leverage sensitivity. Where debt financing is tightly sized, a buyer may want completion accounts to true up net debt precisely.
• Price certainty needs. Sellers seeking a clean break and buyers wanting no surprises both lean toward a locked box.
• Deal tension and timing. Competitive, time-pressured auctions tend to produce locked box outcomes.

As a default heuristic, a well-diligenced, stable target in a competitive process points to a locked box; a complex carve-out or a business with seasonal or volatile working capital points to completion accounts. Many Czech deals land on a hybrid, a locked box for the bulk of the price with a narrow, specific adjustment for one volatile line item.

Drafting checklist & sample clauses (practical toolbox)

Whichever mechanism is chosen, disciplined drafting prevents disputes. The following checklist captures the points negotiators should confirm. The sample clause extracts below are for negotiation use only and do not constitute legal advice.

• Locked date. Define the rozhodný den precisely and tie it to a specified set of accounts.
• Leakage definition. Set out an exhaustive list of leakage categories with no gaps.
• Permitted leakage. Schedule agreed amounts, caps and time windows exhaustively.
• Release mechanics. Specify how and when the seller’s leakage liability falls away.
• Ticking fee clause. State the rate, accrual start, compounding and any cap.
• Interest and payment. Define interest on late or deferred amounts under the Civil Code.
• Accountant appointment. Name the mechanism for appointing the expert and define the mandate.
• Dispute escalation. Set clear timelines for review, objection and determination.

Short illustrative extracts, for negotiation use only, not legal advice:

• Leakage. “The Seller shall pay to the Purchaser on a koruna-for-koruna basis an amount equal to any Leakage occurring between the Locked Date and Completion, other than Permitted Leakage.”
• Permitted leakage. “‘Permitted Leakage’ means the items set out in Schedule [X], up to the amounts and within the periods specified.”
• Ticking fee. “Interest accrues on the Equity Price at [X]% per annum daily from the Locked Date to Completion and is payable at Completion.”
• Working capital peg. “If Completion Working Capital exceeds the Target, the Consideration is increased by the excess; if it is less, the Consideration is reduced by the shortfall.”
• Expert determination. “Any dispute on the Completion Accounts is referred to the Independent Accountant acting as expert and not as arbitrator, whose determination is final and binding save for manifest error.”
• Red flag to avoid. Do not leave the accounting policy hierarchy undefined, silence invites a dispute over whether IFRS, Czech accounting standards or historic practice governs.

Negotiation tactics and dispute prevention (practical tips)

Protection packages differ by mechanism. In a locked box, the buyer’s leakage indemnity is the primary tool, often supported by a short escrow or holdback to secure the seller’s exposure during the leakage claim period. In completion accounts, a retention against the estimated adjustment can bridge the gap until the true-up crystallises.

Covenants between the locked date (or signing) and closing should require the seller to operate in the ordinary course and to avoid any action that would constitute leakage or distort working capital. Sellers, for their part, should insist on anti-double-counting language so that an item captured as leakage is not also recovered through a warranty claim, and vice versa. Where completion accounts are used, the choice between an accounting expert and an independent auditor should be made deliberately, an expert determination is quicker and typically final, whereas a broader audit may invite re-litigation of settled points.

Czech market practice 2024–26 (brief case patterns)

Across 2024 to 2026, Czech buyers and sellers have been increasingly explicit about splitting interim interest risk, reflecting the higher cost of money captured in Czech National Bank rate data. Locked boxes remain common in competitive processes with clean, well-audited targets, while completion accounts have held their place in carve-outs and businesses with seasonal working capital. Typical leakage items in the Czech market are driven by local corporate practice, management charges within family-owned groups and intra-group financing arrangements feature prominently in anonymised precedents. The practical takeaway is that early, precise definition of permitted leakage and a clearly calibrated ticking fee reduce friction at closing.

Conclusion and recommended next steps

The locked box vs completion accounts czech republic choice is a commercial and legal decision that shapes price certainty, cash timing and post-closing risk. A locked box delivers a fixed price and a clean exit, protected by a tightly drafted leakage regime and, where agreed, a ticking fee. Completion accounts deliver precision through a working capital and net debt true-up, at the cost of a post-closing review and potential dispute. The right answer turns on diligence depth, balance-sheet volatility, leverage sensitivity and deal tension. Deal teams should define the mechanism early, draft the leakage, interest and adjustment clauses with precision, and pressure-test the accounting policy hierarchy before signing.

For bespoke advice on structuring a Czech SPA price mechanism, contact Global Law Experts, and consult the Private Equity, Czech Republic practice area page and the GLE lawyer directory for Private Equity lawyers in Czech Republic.

Sources

1. Civil Code (Act No. 89/2012 Coll.), consolidated text
2. Act No. 90/2012 Coll., on Business Corporations and Cooperatives
3. Supreme Court of the Czech Republic, official site
4. Ministry of Justice of the Czech Republic
5. Czech National Bank (CNB), statistics and interest rates
6. Czech Bar Association (Česká advokátní komora)
7. European Commission, Competition