Fund accounting in Luxembourg, bookkeeping, NAV calculation and investor reporting.
Fund accounting in Luxembourg is the bookkeeping of an investment vehicle and its holding structures, through to the calculation of net asset value (NAV) and investor reporting. FSL, a licensed fiduciary (auth. 10077274), handles investment entries, position valuation, NAV calculation and its controls, the booking of capital calls and distributions, equalisation and carried interest, in Lux GAAP or IFRS, in close coordination with your AIFM, depositary and auditor. This page sets out exactly what fund accounting covers, how it differs from fund administration, and how we run it through to NAV deadlines and the annual close.
Fund accounting is the maintenance of the accounts of a Luxembourg investment vehicle (RAIF, SIF, SICAR, SCSp) and its holding structures, comprising investment entries, position valuation, the calculation of net asset value (NAV) and its controls, the booking of capital calls and distributions, equalisation and carried interest, as well as investor reporting, under Lux GAAP or IFRS. It is distinct from fund administration, which additionally encompasses the transfer agency function (the investor register).
Fund accounting is prepared under Lux GAAP (law of 19 December 2002 as amended) or IFRS, depending on the fund documents and investor expectations. Reporting and valuation obligations stem from the vehicle's own law (RAIF, law of 23 July 2016; SIF, law of 13 February 2007; SICAR, law of 15 June 2004; SCSp, law of 12 July 2013), the AIFM framework (law of 12 July 2013) and the applicable CSSF circulars. FSL is a licensed fiduciary (business licence 10077274, RCS B213987, VAT LU29299810), supervised by the AED under the AML framework: it keeps the fund's books; reserved acts (audit by an approved statutory auditor, depositary functions, AIFM authorisation) remain with the duly qualified professionals.
Key takeaway
- Fund accounting covers the bookkeeping of the vehicle and its SPVs, the calculation of NAV and investor reporting.
- It differs from fund administration: FSL keeps the books; the transfer agency (investor register) belongs to the broader administration service.
- FSL works in either Lux GAAP or IFRS, depending on the fund documents and LP expectations.
- Capital calls, distributions, equalisation, waterfall and carried interest are booked and reported on the fund's schedule.
- FSL coordinates with the AIFM, depositary and auditor; NAV deadlines are met, reserved acts stay with partners.
- Pricing on a quote basis, depending on the vehicle, portfolio complexity and NAV frequency.
What is fund accounting in Luxembourg?
Fund accounting is the bookkeeping of a Luxembourg investment vehicle and its holding structures, through to the calculation of net asset value (NAV) and investor reporting. It is the numerical foundation underpinning the valuation of units, distributions, regulatory reporting and the annual audit. Without rigorous fund accounting, neither the LPs nor the AIFM has a reliable picture of the vehicle's performance and position.
In Luxembourg, Europe's leading fund domicile, this discipline applies across the full range of vehicles: RAIF, SIF, SICAR, and also special limited partnership (SCSp) structures, very common in private equity and private debt. Each vehicle type has its own valuation and reporting constraints, but the heart of the discipline is the same: faithfully record investments, value them, calculate the NAV and deliver clear information to investors.
Fund accounting goes well beyond data entry. It requires understanding the capital structure (commitments, calls, distributions), the profit-sharing mechanics (waterfall, carried interest, equalisation), and the requirements of the chosen accounting framework. It is technical accounting, sitting at the crossroads of fund law, finance and Luxembourg regulation.
FSL handles this fund accounting end to end, as a licensed fiduciary, in coordination with the regulated parties: the AIFM, the depositary and the approved statutory auditor. Our role is to produce numbers that are accurate, on time, and usable by everyone involved in the fund.
Fund accounting or fund administration: do not confuse the two
A common confusion is worth dispelling from the outset: fund accounting is not fund administration. Fund administration is a broader service that encompasses both the bookkeeping of the vehicle and the transfer agency function: maintaining the investor register, processing subscriptions and redemptions, managing investor cash flows, and investor-level KYC/AML.
Fund accounting, by contrast, focuses on the bookkeeping of the vehicle and its structures, the NAV calculation, capital accounts and reporting. It is the "numbers and NAV" block of the whole. Many structures, especially in private equity and private debt, need precisely this solid accounting block, with the AIFM or a dedicated agent handling the register and transfer side.
FSL keeps the fund's books. We produce the entries, value the portfolio, calculate the NAV, manage capital accounts and carried interest, and prepare the reporting. Where the transfer agency function is required, it is provided by the duly qualified partners in the structure, with whom we coordinate. This clear split avoids grey areas and ensures each function is handled by the competent party.
Understanding this distinction matters when structuring your operating model: it determines who does what, where information flows, and how responsibilities are shared between the AIFM, the depositary, the administration and the fund's accounting.
Investment entries and valuation of positions
The day-to-day of fund accounting begins with investment entries: acquisitions and disposals of securities, loans and drawings in private debt, capital calls and repayments on holdings, accrued interest, capitalised acquisition costs. Every portfolio transaction must be recorded accurately, in the right currency, on the right date, with the appropriate accounting treatment under the chosen framework.
Next comes the valuation of positions. This is a decisive step, because the fair value of assets feeds directly into the NAV. In private equity and real estate, assets are unlisted: their valuation relies on models, comparable transactions or appraisals, and valuation responsibility lies with the AIFM under the AIFM framework. Fund accounting integrates these valuations, ensures their traceability and controls them against the entries.
For listed or liquid positions, valuation relies on market prices and reliable price sources. In every case, the fund accountant reconciles accounting positions with the depositary's and counterparties' inventories, identifies discrepancies and documents them. This audit trail is essential to NAV reliability and to a smooth annual audit.
FSL structures these entries and valuations in a consistent, documented way, so that every position of the fund is justified and the NAV rests on a solid base, verifiable by the auditor and the investors alike.
Net asset value (NAV) calculation and its controls
The NAV calculation is the culmination of fund accounting. The NAV represents the value of the fund's assets, less its liabilities and provisions, and is the basis for valuing the units or shares held by investors. It is the number LPs look at, the one underpinning subscriptions, redemptions, distributions and performance measurement.
NAV is calculated at a frequency set by the fund documents: daily for some liquid funds, monthly, quarterly or semi-annual for most private equity, private debt and real estate vehicles. At each NAV date, we aggregate the value of positions, integrate accrued income and expenses, management fees, performance fees and other adjustments, to arrive at a NAV per share class.
But a NAV calculation is only worth as much as its controls. We run consistency checks: cash reconciliation with the depositary and banks, position verification, period-on-period NAV movement review, price and exchange-rate review. These controls catch an anomaly before the NAV is released, rather than after.
Meeting NAV deadlines is non-negotiable: investors and the AIFM expect the NAV on time. FSL organises production to meet these deadlines, securing the upstream (receipt of prices, inventories, AIFM information) so the calculation can be finalised and controlled within the agreed timeframe.
Capital calls, distributions and equalisation
Closed-ended vehicles in private equity, private debt or real estate operate on the basis of commitments drawn down progressively. Fund accounting must faithfully reflect this capital lifecycle: capital calls (drawdowns), investments, income and repayments, then distributions to investors as disposals and cash flows come in.
Each capital call is booked per investor, consistent with their commitments and the called portion. Each distribution is allocated according to the mechanics set out in the LPA. This booking feeds the individual capital accounts, which track for each LP their commitments, capital called, capital repaid, distributions received and share of profit.
Equalisation is a particular mechanism of multi-closing funds. When new investors join the fund after the first closings, equalisation restores fairness between LPs: incoming investors compensate existing LPs for the elapsed period, often with an equalisation interest. Fund accounting calculates and records these equalisation flows, which can be technical and demand great precision.
FSL masters these capital mechanics and reports them transparently. Investors receive clear capital accounts, the AIFM has a reliable view of calls and distributions, and the auditor finds a consistent audit trail between commitments, calls, distributions and equalisation.
Waterfall, carried interest and capital accounts
Profit-sharing between LPs and the general partner follows a contractual mechanism, the distribution waterfall, defined in the LPA. It organises the order in which cash flows are distributed: return of capital, hurdle rate (preferred return), GP catch-up, then sharing of the surplus between LPs and GP. Fund accounting translates this cascade into figures at each distribution.
Carried interest is the share of capital gains accruing to the general partner or management team once the hurdle is met. Its calculation can be complex: deal-by-deal or whole-of-fund carried interest, with or without clawback, subject to escrow or not. Fund accounting calculates the carried interest due or provisioned, consistent with the waterfall and the LPA terms, and documents it for the audit.
Capital accounts are the synthesis, investor by investor, of all this mechanics: commitments, capital called and repaid, distributions, share of profit, interest and carried interest. They are the reference for each LP and a central element of investor reporting. Their accuracy is essential, as they translate directly the economic rights of each party.
FSL configures and produces the waterfall, carried interest and capital accounts based on the precise terms of your fund documents. This demanding accounting modelling is one of the most technical dimensions of fund accounting, and one where rigour makes the difference for investors and auditor alike.
Lux GAAP or IFRS: choosing the fund's accounting framework
Fund accounting can be prepared under Lux GAAP (Luxembourg) or under IFRS. The choice is not neutral: it depends on the fund documents, the type of investors, reporting expectations and, sometimes, the requirements of an institutional investor or a parent consolidating under IFRS.
Lux GAAP, based on the law of 19 December 2002 as amended, offers great flexibility and remains widely used for Luxembourg investment vehicles, particularly when they value their holdings at fair value. IFRS, for its part, are often preferred by funds whose international investors expect a comparable global framework, with precise consolidation and presentation rules.
The choice of framework structures the whole of fund accounting: treatment of financial instruments, fair-value measurement, presentation of equity and units, notes to the accounts. It must be set at set-up and applied consistently from one year to the next. FSL keeps and reports in the chosen framework, and can support the upstream thinking depending on your investor profile.
Where the vehicle sits within a group structure with entities to consolidate, fund accounting dovetails with consolidation work. We ensure consistency between the fund's accounts, those of the SPVs and, where relevant, the consolidated statements expected by investors or the top structure.
Investor reporting and LP reporting
Reporting is the visible purpose of fund accounting. Investors, and in particular the LPs of closed-ended funds, expect regular, clear and reliable information on the value of their units, their capital accounts, fund performance and the period's transactions. Quality reporting is a decisive trust factor in investor relations.
Investor reporting typically includes the NAV per share class, the statement of individual capital accounts, the summary of the period's calls and distributions, performance indicators (IRR, multiples) where expected, and commentary on transactions. Its form and frequency are set by the fund documents and the AIFM, from monthly to semi-annual depending on the vehicle.
Alongside investor reporting sits regulatory reporting, whose responsibility lies primarily with the AIFM, but which relies on the accounting data we produce. Fund accounting thus feeds the reporting chain, providing figures that are accurate, on time, and consistent from one production to the next.
FSL produces investor reporting alongside the AIFM and formats it to your standards. Our aim is that each LP receives crystal-clear information, and that the AIFM has a reliable accounting base for its own reporting obligations to the CSSF and the authorities.
Coordination with the AIFM, depositary and auditor
A regulated Luxembourg fund operates as an ecosystem: the AIFM (manager), the depositary, the administration, the accounting and the auditor. Fund accounting is never an isolated activity: it continually dovetails with these parties, and the quality of coordination drives both meeting NAV deadlines and the smoothness of the close.
With the AIFM, we exchange asset valuations, investment decisions and reporting information. Responsibility for valuation and regulatory reporting lies with the AIFM; we supply the accounting substance and the NAV. With the depositary, we reconcile cash and positions, and take its controls into account. Each reconciliation strengthens NAV reliability.
With the approved statutory auditor, we prepare the annual accounts and audit packs, and respond to its requests during the engagement. FSL is not the fund's auditor: the statutory audit is an act reserved to the approved statutory auditor. Our role is to deliver a complete, documented and consistent accounting file that facilitates and secures its work.
This coordination is precisely the added value of well-kept fund accounting: not just producing figures, but slotting cleanly into the fund's regulated structure, respecting each party's role and meeting shared deadlines. Reserved acts stay with the duly qualified partners; FSL keeps the books and orchestrates the information flows around it.
Annual close, vehicle accounts and deadlines
The annual close is the high point of the fund's accounting cycle. It leads to the vehicle's annual accounts, prepared in the chosen framework (Lux GAAP or IFRS), with the notes and information expected by investors and the auditor. The fund accounting carried out throughout the year prepares this close, which must be both accurate and met on time.
We build the audit packs: justification of positions, valuations and their support, cash reconciliations, the year's NAV calculations, capital accounts, waterfall and carried interest, capital movements. A well-prepared audit file shortens the auditor's engagement and reduces back-and-forth. It is a gain in time and peace of mind for the sponsor and the AIFM.
Deadlines structure the entire year: NAV deadlines during the year, investor reporting deadlines, and the close and filing calendar at year-end. FSL drives this calendar, anticipates activity peaks and secures the upstream so that nothing is produced under pressure. Meeting deadlines protects the investor relationship and the vehicle's compliance.
At the end of the close, the vehicle has audited annual accounts, complete investor reporting and a consistent audit trail. This is the proof of well-controlled fund accounting, and the basis for a calm new year. FSL supports this cycle year after year, as a stable point of contact in your structure.
Why entrust your fund accounting to FSL?
FSL is a licensed fiduciary (authorisation 10077274, RCS B213987, VAT LU29299810), supervised by the AED under the AML framework. We keep the books of Luxembourg fund vehicles (RAIF, SIF, SICAR, SCSp) and their holding structures, in Lux GAAP or IFRS, with an approach that is both technical and coordinated.
Our scope is clear: we keep the books, calculate the NAV, produce the capital accounts, waterfall, carried interest and investor reporting, and prepare the close and audit packs. Reserved acts, statutory audit, depositary functions, AIFM authorisation, remain with the duly qualified professionals, with whom we coordinate. This transparent split is a safeguard for investors.
We work as a dedicated, multilingual point of contact, able to liaise with a sponsor, an AIFM, a depositary and an auditor within a single file. Our demand for responsiveness and respect for deadlines, which characterises all our engagements, applies fully to fund accounting, where NAV punctuality is essential.
The exact scope, NAV frequency and reporting level determine the cost: that is why we work on a quote basis, after a precise scoping of your vehicle. Let's discuss your fund, its structure and its deadlines: we will provide a tailored proposal, with no hidden cost, in connection with our fund structuring, NAV calculation and AIFM support services.
Fund accounting and fund administration: the distinction
| Scope | Fund accounting (FSL) | Fund administration (broader service) |
|---|---|---|
| Bookkeeping of the vehicle | Yes, core of the service | Includes accounting |
| NAV calculation | Yes, with controls | Includes NAV calculation |
| Capital accounts & carried interest | Yes, per investor | Included |
| Transfer agency (investor register) | No, out of scope | Yes, distinct function |
| Investor reporting | Yes, alongside the AIFM | Yes |
| Auditor / depositary coordination | Yes | Yes |
Who this is for
- Private equity, venture capital, private debt and real estate funds
- AIFMs and management companies outsourcing their funds' accounting
- RAIF, SIF and SICAR initiators and sponsors
- SCSp (special limited partnership) structures and their general partners
- Holdings, SPVs and co-investment vehicles of multi-tier structures
- Family offices and managers running one or more dedicated vehicles
What we do
- Bookkeeping of the fund and its holding structures (Lux GAAP, IFRS)
- Investment entries and valuation of portfolio positions
- Net asset value (NAV) calculation and associated controls
- Booking of capital calls, distributions and equalisation
- Per-investor capital accounts, distribution waterfall and carried interest
- Investor and LP reporting, alongside the AIFM
- Preparation of audit packs and coordination with the approved statutory auditor
- Annual accounts of the vehicle, NAV deadlines and regulatory filings
Estimated timelines
Pricing indication
Indicative ranges, excluding disbursements and taxes. Firm quote after scoping.
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Preparation checklist
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The process, step by step
Vehicle scoping
We review the vehicle type (RAIF, SIF, SICAR, SCSp), the chosen accounting framework (Lux GAAP or IFRS), the NAV frequency, the holding structure and the parties involved: AIFM, depositary, auditor. This scoping sets the exact perimeter of the fund accounting and the deadlines to meet.
Set-up
We build the chart of accounts for the fund and its SPVs, take over positions and opening balances, and configure per-investor capital accounts, the distribution waterfall and the carried interest calculation. Information flows with the AIFM and depositary are organised from this stage.
Ongoing production
We post investment entries, value positions, calculate the NAV at each scheduled date and produce investor and regulatory reporting on time. Capital calls, distributions and equalisation are booked as they occur, with reconciliations and controls.
Close & audit
We prepare the vehicle's annual accounts, build the audit packs and coordinate with the approved statutory auditor. We handle regulatory filings and the transmission of information to the depositary and AIFM through to the year-end close.
Frequently asked questions
What is the difference between fund accounting and fund administration?
Which vehicles can you account for?
Do you work in Lux GAAP or IFRS?
Do you calculate the net asset value (NAV)?
Do you handle capital calls, distributions and equalisation?
Do you calculate the waterfall and carried interest?
Are you the fund's auditor?
How do you coordinate with the AIFM and depositary?
Is FSL a chartered accountant (expert-comptable)?
How much does fund accounting cost at FSL?
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