JMFC Knowledge Base

Practical knowledge for CFOs,
boards and chief accountants

Articles written in the language of decisions, not standards. Each topic explains what changes, whether it applies to your company and what to do next. With comments from audit practice — not from AI.

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Statutory auditor, PANA no. 12933A conversation with a practitioner, not a call center.
20+
20+ years of experienceBig4 and mid-tier background — rigour with a flexible approach.
25
Articles already available5 thematic pillars, expanded audit cluster.

Materials — current topics for finance and management

Each article starts with an executive summary, a practical example and a comment from practice. Filter by topic or browse everything.

Audit
Your group auditor now has more authority. What CFOs should know before the 2025/26 season

From 2025, the group auditor is responsible for the entire group audit process — not just consolidation. For CFOs this means more questions, higher documentation requirements and one area that almost always causes trouble.

"The company has Excel reconciliations, but no documented elimination procedure. The auditor has to reconstruct it."
Audit
Audit thresholds increased by 25%. Are you sure you should terminate the auditor?

Some companies have dropped out of mandatory audit and are cancelling engagements automatically. Before you do that, consider banks, investors and future transactions.

"I have seen companies cancel an audit in May and sell the business in August. The buyer asked for audited historical data."
CFO decisions
KSeF starts in a few months. Is your invoice workflow really ready?

IT may have integrated the API. But who approves purchase invoices when the PDF from email disappears? Most companies solve the technical problem and miss the process problem.

"An invoice exists in KSeF from the moment it is issued — before your AP team sees it, the tax authority already has it."
CFO decisions
Do you have contracts with retentions? You may be overpaying for frozen capital

At 8% WACC, a 24-month retention of PLN 500k costs PLN 80k per year. A bank guarantee may cost PLN 10k. Many firms never calculate it.

"With five parallel contracts, replacing retentions with guarantees can save PLN 350k per year."
CFO decisions
Is your work in progress valued correctly? Auditors check it in week one

Errors in fixed-cost allocation directly overstate or understate profit. WIP is one of the first audit areas and one of the most common sources of adjustments.

"The most common issue: last year's standard costs, this year's materials and energy. WIP understated, variances unexplained."
IFRS
2026 is already the comparative year for IFRS 18. Does your finance team know?

The standard applies from 2027, but retrospective application means 2026 data must be restated. Companies that start in 2027 will have months to do what should take a year.

"A Polish subsidiary discovered the group IFRS 18 requirement two months before the deadline. It started at the wrong moment."
IFRS
Did you renegotiate leases in 2023–2024? Your IFRS 16 schedule may be wrong for two years

With WIBOR moving from 0.1% to 7%, companies with variable-rate leases should have updated schedules at each rate change. Many did not.

"A 2021 schedule, 1% discount rate and a 2023 renegotiation at 6.5% can move the lease liability by double digits."
Accounting
The tax office can see your accounts in detail. What to update before the first JPK_CIT

JPK_CIT is not just a new file format — it requires tax markers on every accounting entry. If your chart of accounts does not support this, the first report will be wrong.

"Who decides whether a cost is tax-deductible? A bookkeeper cannot decide ad hoc for every invoice."
Accounting
Your company changed size category in 2025. Does the accounting policy still say otherwise?

New Polish Accounting Act thresholds changed the category of many companies. That may unlock simplifications or create new duties. An outdated accounting policy is a formal error auditors will flag.

"Accounting policy from the year the company was founded; the business grew tenfold and nobody updated it."
Tax risk
KSeF gives the tax authority your invoices before JPK_VAT. Can your records withstand it?

Tax systems can compare supplier sales invoices with buyer purchase invoices automatically and in real time. Every mismatch becomes a potential audit signal.

"The invoice date in KSeF is the date for the tax authority — regardless of your internal approval workflow."
Audit
How long does a financial audit take?

Practical timelines by company type and how finance can shorten fieldwork.

"The fastest audit starts before the year-end close."
Audit
How to choose a statutory auditor

Seven selection questions covering independence, sector fit, timetable and governance.

"Auditor selection is governance, not only procurement."
Audit
Management letter from the auditor

How to prioritise recommendations and avoid recurring audit findings.

"A management letter without owners becomes a list of recurring problems."
Audit
Qualified vs unqualified audit opinion

Impact on banks, owners, governance and management actions before signing.

"Banks read the basis for qualification, not only the opinion label."
Audit
Change of auditor - what the new auditor checks first

Opening balances, ISA/KSB 510, predecessor communication and first-year audit risk.

"The first audit after a change usually starts with opening balances."
Audit
Going concern: what the auditor is really asking

Definition, red flags, cash flow scenarios, covenants and material uncertainty impact.

"Liquidity needs evidence, not a management declaration."
Accounting
Inventory count before audit: what auditors expect

Inventory count observation, audit evidence, count documentation and production vs trading differences.

"The auditor does not count for the company, but tests the reliability of the process."
Accounting
KSeF offline mode, outage and emergency invoicing

Governance, numbering controls, archiving and finance responsibilities during failures.

"A KSeF outage is technical, but the risk is process governance."
Tax risk
Minimum income tax in Poland: when to assess CIT risk

Tax profitability, EBITDA, exclusions, CIT-8 and ratio analysis for CFOs.

"Low profitability should be calculated, not guessed."
CFO
Negative equity: board, bank and audit consequences

Polish Commercial Companies Code, covenants, going concern and recovery actions.

"Negative equity needs a recovery plan, not only a note disclosure."
Audit
Audit committee: 12 questions to ask the auditor

Significant risks, KAMs, independence, management letter and TCWG communication.

"An audit committee needs specifics, not ceremonial oversight."
CFO
Bank covenants: waiver before balance sheet date

IAS 1, current vs non-current debt, liquidity risk and audit implications.

"One covenant breach can change the whole balance sheet."
IFRS
Deferred tax explained through practical cases

Depreciation, leases, provisions, tax losses, IAS 12 and JPK_CIT impact.

"Deferred tax affects profit, covenants and group reporting."
Tax risk
Hidden dividend risk in related party transactions

Arm's length principle, transfer pricing, rent example and PLN 15,960 annual error cost.

"Almost every family-owned company has one transaction that deserves review."
Accounting
KSeF permissions and API token: finance access matrix

Employees, API tokens, ERP integrations, segregation of duties and audit trail.

"An API token without control can be riskier than the implementation itself."

Start with the article that fits your role

Editorial selection — not just a filter. Each list contains five articles chosen for the decisions and risks typical for that role.

Core articles — audit, law and reporting

Evergreen topics that return every year during year-end close and before the audit.

Mandatory audit

When is a financial statement audit mandatory?

How to assess statutory thresholds, exceptions and the point when management should start selecting the auditor.

3 minBoard / owner
Company audit

Audit of a limited liability company step by step

Audit scope, timeline, management responsibilities and the documents that usually determine the pace of work.

5 minLimited liability company
Checklists

How to prepare for a financial audit

Checklists for CFOs and chief accountants: data, reconciliations, accounting policies and risk areas to close early.

6 minCFO / finance
Audit scope

What does a statutory auditor check?

From revenue and receivables to provisions, leases, impairment and events after the reporting date.

5 minAudit / scope
IFRS

IFRS vs Polish GAAP: key differences for management

Where differences between IFRS and Polish GAAP most often arise and how they affect profit, EBITDA and group reporting.

7 minGroup reporting
Consolidation

Group consolidation: CFO checklist

How to organise reporting packs, eliminations, intra-group transactions and notes before deadline pressure starts.

7 minCapital groups
Corrections

Lease accounting and error corrections

When a lease correction requires going back to a prior-period error and when a change in estimate is enough.

6 minLeases / IFRS
Reporting quality

Common financial statement errors

Presentation errors, outdated policies, missing disclosures and inconsistent notes that slow down the audit.

6 minFinancial reporting
Board decision

Is a voluntary audit worth it?

When a voluntary review or audit helps clean up finance, supports investor discussions and reduces risk before a major change.

4 minOwner / board
Planning

Audit threshold for 2025 financial statements

How to read thresholds in practice and when it is worth analysing the situation before year-end close.

4 minPolish Accounting Act

Want to apply this topic to your company?

If you need to confirm the audit obligation, organise audit preparation or assess a specific accounting issue, speak directly with a statutory auditor.

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