FRS 102 managed service vs self-service: Which model fits your business?

Two UK businesses, same starting point: both adopting FRS 102 Section 20 for the first time, both signed up to a lease accounting platform. At one, there's a three-person finance team, 60 leases, and a financial controller who spent four years on IFRS 16 at a listed company before joining. At the other, there's a single financial controller working alone, 120 leases, a property portfolio across six sites, and an audit in six months. They're looking at the same self-service software. For one of them, it's the right answer. For the other, it's a risk their current situation doesn't support. This piece sets out the framework that tells you which camp your business is in.

The decision isn't primarily about cost, despite what most software comparisons imply. It's about whether your team has the in-house capacity to run the calculations correctly, catch errors before the auditor does, and sustain that quality through a year of lease modifications, rent reviews, and fleet renewals. For some teams, that bar is realistic. For others, it isn't, and the consequences of misjudging it are asymmetric. See FRS 102 lease accounting for an overview of what the standard requires and how LOIS supports it.

Written with input from Maeve O'Connell, LOIS Head of EMEA and CA-qualified accountant with over 25 years of leasing finance experience. Updated August 2026.

What self-service FRS 102 software actually involves

Self-service is the right model for many teams, and it's worth being clear about what it involves before framing it as a limitation. You log in, you manage your own lease data, you run the calculations, and you produce the journals and reports your team needs each period. A well-designed platform handles the FRS 102 Section 20 mechanics automatically: ROU asset recognition, lease liability amortisation, discount rate application, modification remeasurements. Your team configures the leases, reviews the outputs, and posts the journals.

What the software doesn't do is check whether the inputs are correct. That's your team's job. If a lease has been loaded with the wrong term, the wrong payment date, or the wrong discount rate, the system will produce entirely coherent, entirely wrong output. The calculations are only as good as the data behind them, and for a first-year FRS 102 adopter working from a lease register they've built from scratch, the scope for silent error is real.

Self-service also requires your team to handle ongoing compliance: every lease modification, every rent review, every fleet renewal has to be processed correctly and on time. Under FRS 102, lease accounting isn't a one-time transition exercise. It's a monthly workflow that compounds: errors in month three don't just affect month three, they carry forward into every subsequent period.

None of these requirements are unreasonable for a team with the right experience and capacity. They're just worth stating clearly, because the marketing for self-service software often skips them. For teams that already have IFRS 16 experience, the model works well. For teams adopting on-balance-sheet lease accounting for the first time, it requires a level of in-house expertise that not every team has.

What LOIS Managed Service actually does each month

LOIS Managed Service delivers a fully managed monthly compliance cycle: CA-qualified lease accountants validate all data, review every FRS 102 Section 20 calculation, prepare journals ready for posting, and issue an audit-ready reporting pack. Your finance team reviews and posts; the compliance work is done. A financial controller using LOIS Managed Service receives that pack each month with a timestamped audit trail behind every figure, disclosure outputs ready for the notes to the accounts, and nothing rekeyed from a spreadsheet. The controller who entered the original lease data in LOIS also has live visibility over the property portfolio (upcoming rent reviews, expiry dates, break options) because the managed service runs on the same platform.

A dedicated LOIS CA-qualified accountant provides ongoing guidance and catches issues before they become audit findings.

What the managed service doesn't do is remove your team from the process. Your finance team still owns the lease data: you're the ones who know about the new lease signed last month, the rent review triggered by the landlord, the fleet renewal that came through from the facilities team. The LOIS experts validate what you provide and handle the accounting compliance layer. The decision-making and commercial awareness remain with your team. For a full picture of what the service covers, see the LOIS Managed Service page.

Self-service vs managed service: five criteria that drive the decision

The right model depends on five things. None of them is about cost in isolation, because the true cost of self-service includes the time your team spends on it and the risk of errors that don't surface until audit fieldwork. Here's how to read the table: if you fall on the self-service side of most rows, self-service is probably right. If you're in the managed service column more often than not, that's the signal.

Going back to the two businesses from the opening: the three-person team with 60 leases and an experienced IFRS 16 controller is a strong candidate for self-service. The single controller with 120 leases and six months to audit is a different picture entirely. The capacity isn't there, the experience may not be, and the cost of a miscalculation caught in fieldwork is significantly higher than the cost of having the LOIS team catch it in month two.

For a broader view of how prior IFRS 16 experience shapes your FRS 102 readiness, see how prior IFRS 16 experience shapes your first FRS 102 period.

Why first-year risk is different from ongoing risk

The IFRS 16 experience taught a consistent lesson: transition calculations were usually completed. The problems came later. Leases changed. Modifications went unprocessed. An auditor asked to trace a journal back through the amortisation schedule, and the spreadsheet didn't hold up.

FRS 102 follows the same pattern. Getting the opening position right is necessary, but a miscalculation in the opening ROU asset doesn't stay localised. It affects depreciation for the full remaining lease term, the lease liability balance, and everything disclosed from it. Sustaining accuracy through 12 months of lease changes is what determines the quality of your first set of FRS 102 accounts, not the transition calculation alone.

Audit risk is also asymmetric. An error caught by your team internally costs a few hours to correct. An error caught by the auditor in fieldwork costs considerably more: additional time, additional scrutiny of adjacent areas, and in some cases a conversation about the reliability of the process as a whole. The first FRS 102 period guide covers exactly what auditors focus on in that first close.

The hybrid reality: same platform, different delivery model

LOIS Managed Service isn't a separate product that replaces the LOIS platform. It uses the same platform your team would use on self-service. The difference is who does what within it. Under managed service, LOIS CA-qualified accountants handle the validation, calculation review, and reporting outputs. Under self-service, your team does. The underlying data, the lease register, the property portfolio visibility, the fleet management: all of it sits in the same system either way.

This matters because teams that start on managed service don't need a migration when they're ready to move to self-service. They already know the platform. They've watched a full year of correct processing run through it. In practice, a meaningful number of teams make that move in their second or third year, once the process is embedded and the learning from the first period is banked.

It works the other way too. Teams that start on self-service and find the ongoing compliance load heavier than anticipated can move to managed service without changing platforms or rebuilding their lease register. The model is a continuum, not a binary choice made once at the start.

What to watch out for when evaluating managed services

Not all managed services are the same, and the difference matters before you commit to one. Some offerings that present as managed services are, in practice, a data collection exercise: you send over your lease data in a spreadsheet, the provider converts it to journals, and you receive the output. There's no live system, no property or fleet visibility, and no way to query the underlying data between reporting cycles.

A number of managed services are really "Excel as a service" where the bulk of the collection is in Excel from the client, and then these are processed by the vendor. In practice, it's still self-service and none of the value of using a dedicated system is achieved, as the data is entered into a format that cannot be used for anything else or even audited. In contrast, using a specialist program means you can still get the commercial benefits of reporting, alerts, and control without having to worry about IFRS 16/FRS 102 expertise.

The distinction matters particularly for businesses with property portfolios. A managed service that just processes accounting entries gives your finance team the numbers, but it doesn't give your property team visibility over what's coming: rent reviews, lease expiries, options to break or renew. A platform-based managed service gives both. For more on how the FRS 102 Section 20 disclosure requirements shape what your outputs need to contain, see FRS 102 Section 20 disclosure requirements.

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