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Acceleration meaning

What does Acceleration mean?
Acceleration is the contractual mechanism by which a lender (or bond trustee) can require immediate repayment of all sums outstanding after an event of default. It is not defined by statute; its content is set by the facility agreement, trust deed or other finance documents and applied under contract law. Acceleration is typically either (i) optional, exercised by written notice (an acceleration notice), or (ii) automatic on specified triggers, commonly non‑payment, insolvency, breach of covenants, misrepresentation, illegality or cross‑default. Once declared, amounts due include outstanding principal, accrued and default interest, fees, break costs and any “all monies” liabilities (including under guarantees and hedging). Its practical effect is to permit enforcement steps: demanding payment, crystallising floating charges, enforcing security, set‑off and calling guarantees. Intercreditor or standstill provisions may restrict who can accelerate and when; in bond issues, acceleration is normally by the trustee acting on instructions of the requisite majority. Usage and effect are broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland, though enforcement procedures differ (for example, a Scottish standard security may require a statutory calling‑up or default notice). Insolvency moratoria may limit enforcement even where acceleration has occurred.
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NEWS
UK corporate crime weekly: SFO UWO, OFSI counter-terrorism disclosure, HMCTS AI plan, ICO prosecution, Ofwat penalties, FCA actions, fraud strategy, Law Commission reform—11 September 2025

In this issue: Cross border criminal investigations Criminal procedure and evidence Proceeds of crime Bribery, corruption, sanctions and export controls Cybercrime and data protection offences Environmental offences Financial services and pensions offences Fraud, forgery, tax and theft offences Insolvency Local authority prosecutions Money laundering Corporate Crime in Scotland Other corporate crime and crime related news Daily and weekly news alerts New and updated content Dates for your diary Trackers Useful information Cross border criminal investigations Companies should act as corporate enforcement develops. In late June 2025, SFO Director Nick Ephgrave met with Matthew Galeotti, head of the criminal division at the US Department of Justice (DOJ), and both reiterated a pledge to work together on prominent transnational investigations. Hayley Lund, partner, and Frankie Cowl, counsel, at Weil Gotshal & Manges LLP, consider the UK’s shifting corporate enforcement landscape. See News Analysis: Companies must take action as...

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NEWS
England and Wales WFOs: corporate-held property, equitable interests and narrow non-enforcement undertakings; BVI injunction permissible — Segulah Medical Acceleration AB v Tripathi [2025] EWHC 632 (Ch)

Segulah Medical Acceleration AB v Tripathi [2025] EWHC 632 (Ch) What are the practical implications of this case? This ruling will interest practitioners advising on applications for a WFO, especially where a proprietary strand is present and cross‑border issues arise. The emphasis is on the baseline obligations placed on a WFO applicant. The court analysed the reach of the applicants’ non‑enforcement undertaking, limiting enforcement to England and Wales (the NEU); the degree to which the order could attach to assets held through a corporate vehicle; and how a cap on the injuncted sum functions when there is a mixture of cash reserves and real property within the jurisdiction exceeding the injunction limit. In relation to the NEU, the court had to determine whether a broad or narrow reading was appropriate where the applicants had taken injunctive steps in other jurisdictions to preserve the defendants’ assets. The judgment thus provides guidance on whether asset‑preservation proceedings in other jurisdictions amount to enforcement contrary to the NEU, on the WFO’s potential...

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NEWS
UK securities settlement acceleration: industry group urges automation and a market-wide code of conduct

Report is enclosed. This piece was originally published by...

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View the related Practice Notes about Acceleration

PRACTICE NOTES
UK AI in life sciences and digital health: tracker of legislation, regulatory guidance, medical devices (SaMD/AIaMD), government initiatives and consultations

This Practice Note tracks key legislative and regulatory developments, government initiatives and strategies, and consultations relating to the use of artificial intelligence (AI) in life sciences and digital health in the UK. The rapid acceleration of AI within life sciences and digital health is spotlighting its power to transform research, fuel innovation and enhance patient care, whilst at the same time presenting intricate regulatory challenges. Across the UK, AI cuts across multiple established legal and regulatory frameworks, with the Medical Devices Regulations 2002 (MDR 2002), SI 2002/618 (as amended) being a central point of intersection. The UK Medicines and Healthcare products Regulatory Agency (MHRA) is advancing a suite of reforms to the UK medical device framework, with notable consequences for AI and digital health—particularly for Software as a Medical Device (SaMD), AI as a Medical Device (AIaMD) and cybersecurity expectations. See News Analyses: Life Sciences UK—key developments in 2025 and horizon scanning for 2026—AI and digital health UK medical devices regulatory reform—where are...

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PRACTICE NOTES
Ancillary facilities via RCFs under LMA SFAs in acquisition finance: structure, terms, repayment, pro rata sharing, documentation, and links to hedging and third-party banking facilities

Acquisition finance transactions In an acquisition finance transaction, beyond the debt—whether constituted by loans or bonds—needed to finance the deal, the borrower group will commonly require additional banking facilities. These might include, for example, an overdraft, a stand-by letter of credit facility or a foreign exchange facility, and can frequently all be delivered under the umbrella of a revolving credit facility (RCF) in the senior facilities agreement (SFA). The RCF will usually be capable of being drawn in three distinct ways: in cash (by way of revolving loans) as syndicated, non-cash facilities, eg letters of credit—these will be identified in the documentation; and in the form of bilateral lines known as ancillary facilities Unlike a revolving credit facility drawn in cash, ancillary facilities are not typically of a kind that lends itself to division amongst several lenders, so the documentation caters for their provision on a bilateral basis. For more on the revolving credit facility, in particular how revolving loans...

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PRACTICE NOTES
Acceleration in Construction Projects: Express and Implied Measures, JCT/NEC Processes, Pricing and Bonuses, Extensions of Time, Liquidated Damages Risk and Record-Keeping

What is acceleration? In construction law, acceleration is commonly taken to mean adopting steps to increase the pace of the works so completion occurs sooner than it otherwise would. However, there is no settled legal definition of the term. In Ascon v Alfred McAlpine, the court remarked that ‘acceleration’ is often bandied about as if it were a precise term of art, yet nothing persuaded the judge that this was so. The root idea behind the metaphor is, no doubt, that of increasing speed and, in the context of a construction contract, finishing earlier than planned. On that basis, ‘accelerative measures’ are actions taken—assumed to be at increased expense—with a view to achieving that aim and bringing completion forward. The Society of Construction Law’s Delay and Disruption Protocol (SCL Protocol) describes acceleration as the application of additional resources or alternative construction sequences or methodologies, seeking to realise the planned scope of work in a shorter time than planned, or the execution of additional scope of work within the...

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View the related Precedents about Acceleration

PRECEDENTS
Defendant’s counter-schedule of loss (low multi-track personal injury) – precedent covering heads of loss, Judicial College Guidelines brackets, earnings, care and interest (England and Wales)

In the County Court at [ insert ] or in the High Court of Justice [ Specify division ] [ Specify Specialist court ] [ INSERT LOCATION ] District Registry Claim No: Between [ A B ] (Claimant) and [ X Y ] (Defendant) COUNTER SCHEDULE OF LOSS The Defendant reserves the liberty to revise, adjust, or supplement this counter schedule at any time up to and including trial. 1 General Damages 1.1 The dates put forward by the Claimant are accepted. 1.2 The Defendant relies upon the opinion of Mr. T. Magnum, Consultant Spinal Surgeon, that the notable decline approximately 12 months after the accident was probably not attributable to it. If there was any acceleration, Mr Magnum’s view is that it did not exceed two years. 1.3 The Defendant’s position regarding the accident’s effect on the Claimant’s employment is set out in section 2 below. As for leisure pursuits, the Claimant reported to Mr Magnum...

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PRECEDENTS
Precedent: demand, acceleration and security enforcement letter to borrower following Events of Default under facility agreement and debenture (English law)

[ To be produced on the headed paper of the lender issuing the demand ] To: [ Insert name of individual and/or position ] [ insert name of the Borrower or other relevant entity ] [ insert address ] [ insert facsimile/fax number ] [ insert email address ] [ copy [ specify to whom ] ] Sent by [ Hand OR First class post OR Facsimile OR Email ] [ Insert date of letter ] Letter of demand Facility Agreement dated [ insert date ] between [ insert name of lender ] (the Lender) and [ name of borrower ] (the Borrower) (the Facility Agreement). [ Debenture ] dated [ insert date ] executed by the Borrower in favour of the Lender (the Debenture). Unless stated otherwise, terms and expressions defined in the Facility Agreement bear the same meanings in this letter of demand. References to “you” mean the Borrower, and references...

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PRECEDENTS
Building Contract Acceleration Deed (English law): Programme, Completion Date and Payment Adjustments

Date [ insert date of Agreement ] Parties [ insert name of Employer ] of [ insert address ], a company registered in England and Wales under number [ insert company registration number ] (the 'Employer') [ insert name of Contractor ] of [ insert address ], a company registered in England and Wales under number [ insert company registration number ] (the 'Contractor') Whereas The Employer and the Contractor have concluded a contract for the [ design and ] construction of a [ insert brief description of the project ] at [ insert location of site ] (the 'Building Contract'). [ There has been a delay to the progress of the works under the Building Contract OR The Employer has increased the scope of works under the Building Contract OR The Employer wishes to shorten the period for the completion of the works ]. Accordingly, the parties agree to expedite the progress of the works...

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