Accountant vs. Treasury: Who Does What in 2026?

If you run a small or medium-sized business, you've probably felt it: you pay your expert-comptable (chartered accountant) every month, yet you still don't know whether you'll cover payroll in six weeks. You get your P&L two months after the fact. Your cash forecast lives in a spreadsheet that was last updated sometime before the summer. Sound familiar?

This isn't a failure of your accountant. It's a structural problem — one that 2026's regulatory changes, new digital tools, and shifting founder expectations are finally forcing businesses to address. The question is no longer whether treasury and accounting are separate functions. The question is: who owns each one, and how do you make sure nothing falls through the cracks?

This guide breaks down the accountant vs. treasury responsibility split in 2026, backed by real data, and shows you exactly how to set up a system where both functions thrive — without doubling your costs or your workload.

What Does an Expert-Comptable Actually Do in 2026?

The chartered accountant's core mandate has always been backward-looking compliance: making sure your books are accurate, your taxes are filed correctly, and your financial statements reflect reality. In 2026, that mandate hasn't changed — but the workload has shifted dramatically.

According to a 2025 Deloitte France study, the average expert-comptable spends 72% of billable hours on compliance work — tax filings, audit preparation, and reconciliation — versus just 28% on forward-looking advisory or cash planning. That's not a criticism; it's a structural reality. Compliance is non-negotiable, time-sensitive, and carries legal liability. Advisory work, by contrast, is optional, flexible, and often the first thing deprioritized when deadlines loom.

The January 2026 e-invoicing mandate (facturation électronique) has added a new layer of complexity. A CNCC member survey from Q1 2026 found that 62% of French chartered accountants report increased client requests for tool integrations since the reform took effect, and 41% now formally recommend or mandate connected treasury and accounting solutions to their clients. The new PDP/PPF workflow alone is stretching capacity: only 29% of expert-comptables report their current software is fully integrated with the new platform, while 58% are still relying on manual exports or third-party middleware.

The bottom line: your accountant is a compliance specialist, not a treasury manager. Expecting real-time cash visibility from a function that's structurally oriented toward monthly or quarterly closings is like asking your tax lawyer to check your bank balance every morning. It's not what they're built for.

The Treasury Gap: Who Owns Cash Flow When There's No Treasurer?

In large corporations, treasury is a dedicated function: a Chief Financial Officer, a treasury team, specialized software, daily cash position reports. In European SMBs, that infrastructure rarely exists.

This creates a dangerous vacuum. Treasury — meaning the active management of cash position, liquidity forecasting, payment timing, and working capital — doesn't disappear just because no one is formally responsible for it. It just gets done badly, late, or reactively. The founder checks the bank account when they remember to. The admin processes payments when asked. Cash forecasts, if they exist at all, are static spreadsheets with a ±25–40% accuracy rate.

Banks and investors have noticed. Post-COVID regulatory and lender pressure has shifted expectations: they now ask founders directly, "How do you track cash weekly?" — not "What does your accountant say?" This shift in accountability is creating urgent demand for founder-facing cash tools that operate outside the traditional accounting stack.

The Real Cost of the Gap: Hours and Euros

The treasury gap isn't just a visibility problem. It has direct, measurable costs — both for your business and for your relationship with your accountant.

According to a 2025 Deloitte SMB Finance Operations Benchmark, SMBs without automated treasury tools spend an average of 6–8 hours per month on manual cash forecasting and bank reconciliation. At a conservative €15/hour administrative wage, that's €1,200–€1,800 per month in indirect labor costs — for a task that modern tools can automate almost entirely.

There's also a data quality problem at the handoff between founders and accountants. An IFAC Global SMB Finance Survey from 2025 found that 47% of SMBs report delays in monthly reporting because of incomplete or miscategorized transaction data submitted from founders. That data mess creates 3–5 extra billing hours per month for expert-comptables — hours that get charged back to you, and that push advisory work further down the queue.

"SMBs that use auto-categorizing treasury tools report 40% faster expert-comptable advisory turnaround, because less time is spent validating and cleaning transaction data before the real work can begin." — Deloitte France, 2025

The math is straightforward. Fixing your data quality upstream — through automated bank sync and AI transaction categorization — directly reduces your accounting bill and unlocks more advisory value from your accountant.

The 2026 Responsibility Matrix: A Clear Division of Labor

The most productive approach in 2026 is to treat accounting and treasury as complementary but distinct functions, each with a clear owner, toolset, and rhythm. Here's how the standard model breaks down:

Notice where the founder appears: invoice coding, cash forecasting, and P&L review. These are the three areas where treasury tools make the biggest difference. When a founder has clean, automated data and a rolling 3–12 month cash forecast at their fingertips, those monthly P&L reviews with the accountant become genuinely strategic conversations — not data archaeology sessions.

How AI-Powered Treasury Tools Bridge the Gap in 2026

The good news is that the technology to close the treasury gap has never been more accessible — or more affordable. In 2026, the market for SMB treasury tools has matured significantly, with AI-powered platforms offering bank-grade forecasting and reporting at a fraction of what dedicated CFO support would cost.

According to a Bpifrance/Banque de France Digital Barometer from Q4 2025, 34% of French SMBs with 10–250 employees now use dedicated cash flow management software, up from just 18% in 2023. That's a near-doubling in two years — driven largely by the e-invoicing mandate and growing founder awareness of the treasury gap.

A platform like Trezy's cash flow management tool connects directly to your bank accounts via Open Banking (2,000+ European bank connections), automatically categorizes transactions with 95% AI accuracy, and generates rolling cash flow forecasts 3–12 months ahead. The result: your accountant receives clean, pre-categorized data, and you get real-time visibility into your cash position without waiting for the quarterly closing.

Trezy also handles OCR-powered document management for invoices and receipts, supplier cost analysis and inflation tracking, and 27+ automated KPIs — all without requiring any accounting background. Setup takes under five minutes, and the design is built for business owners, not finance professionals.

What Expert-Comptables Actually Recommend in 2026

There's a striking data point from the 2025 Pennylane State of French Accounting Tech report: when an expert-comptable actively recommends a treasury or accounting tool, adoption rate among their client base reaches 67% within six months. Without a recommendation, organic adoption is just 12%.

That gap tells you something important: accountants have enormous influence over which tools their clients use — and in 2026, more of them are exercising that influence proactively. The CNCC survey from Q1 2026 confirms that 41% of French chartered accountants now formally recommend or mandate connected treasury solutions to clients.

If your accountant hasn't raised this conversation yet, you can raise it yourself. Ask specifically: "What treasury or cash management tool would you recommend that integrates cleanly with your accounting software?" The answer will likely point you toward tools that sit in an approved ecosystem — and that actively reduce the data-cleaning burden on your accountant's side.

For context on how dedicated treasury platforms compare to generalist alternatives, Trezy has published detailed comparisons against Agicap and Fygr that cover integration depth, pricing, and onboarding complexity — useful reading before your next accountant conversation.

Typical Expert-Comptable Fees vs. Treasury Tool Costs in 2026

One objection we hear regularly: "I'm already paying my accountant — why do I need another tool?" The answer lies in understanding what you're actually paying for, and what you're not getting.

Advisory work — cash planning, tax optimization, working capital strategy — is almost always billed separately from the flat-rate compliance package. If you want your accountant to provide genuine forward-looking guidance, you'll pay extra for it. That's fine; it's valuable. But it's also efficient only when the underlying data is clean and current — which is exactly what a treasury tool provides.

Trezy's pricing starts at €0/month on the free plan, with the Starter plan at €9/month and the Premium plan at €39/month. Compare that to the €1,200–€1,800/month you're currently spending on manual cash management labor, and the ROI calculation writes itself. You can also explore Trezy's break-even analysis tool to model exactly when a treasury tool pays for itself in your specific context.

Frequently Asked Questions

Can my expert-comptable handle cash flow forecasting for me?

Technically yes, but practically no — at least not in real time. Most expert-comptables spend 72% of their billable hours on backward-looking compliance work (Deloitte France, 2025). Cash flow forecasting requires weekly or even daily data inputs and monitoring, which falls outside the scope of a standard compliance engagement. If you want accountant-led cash forecasting, expect to pay advisory rates (€150–€250/hour) on top of your standard monthly fee. A treasury tool automates the underlying data collection and model-building, making those advisory conversations faster and cheaper.

What's the difference between accounting software and a treasury tool?

Accounting software (Sage, Ciel, Cogilog) is designed for your expert-comptable: it records transactions, produces statutory reports, and manages compliance workflows. It looks backward. A treasury tool is designed for you as a founder: it connects to your bank accounts in real time, forecasts your cash position 3–12 months ahead, and tracks KPIs like runway, burn rate, and supplier payment timing. It looks forward. The two tools are complementary, not competing — and the best setups use both, with a clean data handoff between them.

Does the 2026 e-invoicing mandate affect how I manage treasury?

Yes, significantly. The January 2026 e-invoicing mandate creates a continuous, machine-readable flow of invoice data through PDP/PPF platforms. This means your invoice data — income and expenses — can now be automatically ingested by treasury tools without manual entry. It also means your expert-comptable receives cleaner data faster, reducing reconciliation time and freeing up capacity for advisory work. Tools that integrate with the PDP/PPF ecosystem gain a meaningful advantage in data accuracy and timeliness.

How do I introduce a treasury tool to my existing accountant relationship?

The simplest approach is to frame the tool as a data quality improvement, not a replacement. Tell your accountant: "I'm using this tool to keep my transaction data clean and categorized in real time. At month-end, I'll send you a pre-categorized export." Most accountants will welcome this — it directly reduces their reconciliation work. If your accountant is among the 41% who now actively recommend connected tools (CNCC, Q1 2026), ask them which platforms they prefer for clean data handoffs. Trezy supports automated transaction categorization with 95% AI accuracy, making the export process straightforward for any accounting software.