Part I — Situation overview

At the government briefing on 18 May 2026 the Tisza government declared: the previous Orbán cabinet concealed HUF 286 billion in budgetary items — meaning that the budgetary situation officially communicated by the government gave a substantively more favourable picture than the actual balance. Within hours of the new cabinet’s announcement, István Tényi filed a complaint against persons unknown on suspicion of forgery of public documents — an offence under Section 342 of Act C of 2012 (Penal Code). The legal and the political thread thus ran in parallel on the same day; the Fidesz group — Gergely Gulyás, Bence Tuzson, Bence Rétvári — issued a statement that same evening: “The Fidesz–KDNP government concealed no budgetary item whatsoever.” (Telex, 24.hu, Mandiner, 18 May 2026; Portfolio: “Tisza government: the previous government falsified this year’s budget”.)

The numerical background emerges from the 24.hu (18 May 2026) and 444.hu (18 May 2026) analyses: the Hungarian sovereign-debt ratio was 77.9% of GDP at the end of March 2026 — rising in the final months of the Orbán cabinet. According to MIAK ground-truth fact data, Hungarian GDP grew by +0.5% in 2024 and by +2.1% in 2025 (preliminary data); inflation was 3.7% in 2024 and 4.3% in December 2025 — the context is therefore a moderate-stagnating growth path, on which the 77.9% debt ratio sits about 18 percentage points above the EU Maastricht threshold (60% of GDP). A discrepancy of HUF 286 billion in relation to 2025 GDP (around HUF 86,000 billion) is around 0.33% of GDP — not in itself a system-crisis, but a structural precedent, because if confirmed, it will cast doubt over the budget communications of every future Hungarian government in the eyes of markets and EU bodies.

The topic is the new government’s first major fiscal information dispute test. In the first measure package of 15 May 2026 (wealth-tax preparation, EPPO accession, public-media screening, clemency files), the wealth tax was a revenue-side step and the EPPO accession an EU financial-supervisory step — now, however, the question of expenditure-side transparency has come to the fore. The legal-evidentiary part of the HUF 286 billion claim enters a long process (criminal proceedings); the public-policy reading, however, will be decided in the short term: either an institutional reform package closes a chapter, or a political mutual accusation anchors a permanent narrative conflict.

Part II — Literature-based grounding

Before turning to MIAK’s concrete proposals, it is worth fixing the scientific frame. János Kornai (1980) in Economics of Shortage introduces the concept of the soft budget constraint: in paternalistic state systems, lower-level units (firms, institutions, sectors) know that the state will bail them out if they become indebted — and therefore there is no real disciplining mechanism. Budget falsification at the macro level is the extension of the same logic: if the government knows that the numbers can be hidden or re-booked afterwards, the disciplining pressure disappears. Reinhart and Rogoff (2008) in This Time Is Different analyse 8 centuries of financial crises and show: “hidden debt” — including domestic, off-balance-sheet items denominated in domestic currency — is one of the most consistent harbingers of sovereign defaults. Acemoglu–Robinson (2012) in Why Nations Fail identify budgetary transparency as a fundamental inclusive institutional hallmark. The detailed literature discussion can be found in section 6.4 Literature audit detail.

Part III — MIAK’s concrete proposal

MIAK proposes three measurable measures — instead of political mutual accusation, an institutional reform package that structurally addresses the extended questions of the HUF 286 billion case (what happened, why, how would it be prevented in future).

3.1 Setting up an Independent Fiscal Council at statutory level (within 180 days)

Transform the existing — often ineffective — Fiscal Council, or set up alongside it an Independent Fiscal Council with substantive independence (IFI — Independent Fiscal Institution, the European-model independent fiscal-policy analysis body) that:

  • quarterly publishes the independent assessment of the government’s budgetary figures and trajectory in ESA-2010 European standard;
  • issues a mandatory statement on every new budget law and government decision before it is debated in the National Assembly;
  • has an independent expert body (5 members, confirmed by a two-thirds parliamentary majority, 6-year rotational cycle), its own budget, and direct Eurostat and EU Fiscal Board coordination.

The proposal is the direct operationalisation of programme points G1 (data-driven budget), G19 (radical transparency in economic decision-making) and G23 (sovereign-debt sustainability framework). The “hidden debt” pattern documented by Reinhart-Rogoff (see 6.4.2) is only caught when assessing debt capacity if an independent body calculates separately from the government’s numbers. Responsible: Ministry of Finance (legislative preparation) + National Assembly (statutory fixing).

3.2 Parliamentary investigative committee for an audit of 2024–2026 budget items (to be set up within 60 days)

The National Assembly should set up an independent parliamentary investigative committee for an independent expert audit of the budget items of the 2024–2026 period. The task of the committee is not to establish political responsibility (that is within the competence of the independent prosecutorial and judicial line), but:

  • expert audit down to the concrete sub-account of the HUF 286 billion item (which portfolio, which legal title, which date);
  • system-level exploration: through which institutional channels did the 2014–2026 Fidesz era make practical circumvention of the ESA-2010 standard possible (off-balance-sheet entities, state guarantees, delayed payments);
  • legislative proposals for prevention (mandatory Eurostat-protocol pre-qualification for every government decision above HUF 1 million).

The proposal builds on programme points A6 (strengthening checks and balances) and A8 (cohesion-policy accountability). Mapped to the Klitgaard C = M + D − A framework: the investigative committee uncovers the structure of D (discretion) and prepares the future institutionalisation of A (accountability). Responsible: Budget Committee of the National Assembly (formally) + external expert body (KSH, State Audit Office, Eurostat).

3.3 Mandatory quarterly budget publication in ESA-2010 standard (within 90 days)

The Ministry of Finance should publish, quarterly — within 30 days of the end of each quarter — the budgetary position of the central budget and the individual portfolios in the ESA-2010 European accounting standard, in machine-readable form (CSV, JSON, XBRL). The mandatory parts of the publication should be:

  • every new expenditure undertaken on a commitment basis in the given quarter (even if the payment is later);
  • the consolidated budgetary position of every off-balance-sheet entity (state-owned enterprises, public-trust foundations [KEKVAs], public foundations);
  • the deviation explanation structure — if the actual figure deviates from the originally planned value by more than 5%, a mandatory explanatory note.

The proposal is the extension of programme points G16 (algorithmisation of Smith’s tax principles) and G20 (Drucker audit). Responsible: Ministry of Finance, coordination partner: Hungarian State Treasury + KSH.

The three proposals share a common principle: budgetary transparency is not a political achievement but an institutional rulebook, kept working by the combined action of independent bodies, mandatory time cycles and machine readability. The legal-evidentiary part of the HUF 286 billion case will play out over a long process — but the system-level answer must be prepared now, so that the question does not remain only at the level of political mutual accusation.

Part IV — Expected effects and risks

Dimension Expected effect Risk
Public finances Predictability of budget policy grows; CDS spreads (sovereign credit default swap, the market price of country risk) decrease. In the short term (6–12 months) a fresh independent audit may uncover further hidden items — temporary market shock, higher financing costs.
Political system Information continuity between successor governments stabilises; the “post-election budgetary revision” becomes a systemic, not political, event. If the leadership of the independent fiscal council becomes politicised (despite two-thirds confirmation), the trust mark may erode.
Accountability The HUF 286 billion case becomes the subject of a structured investigation; political mutual accusation can be channelled into a track. If the complaint (Tényi István’s step on 18 May 2026) does not proceed on an independent prosecutorial track, the process can fall into political tribute. EPPO accession (the 15 May 2026 package) eases this in the long run.

The main dilemma is clear: short-term market risk (discovery of new items) versus long-term reputational gain (predictable government finances). The proposal works if the independent fiscal council really remains independent — its guarantees being: two-thirds parliamentary confirmation, 6-year rotational cycle, direct Eurostat coordination authority, and its own budget. If any element is missing, the Independent Fiscal Council may slide into a sham institution — exactly what, according to press analyses, the present Fiscal Council has been over the past decade. In Acemoglu and Robinson’s (see 6.4.3) words: the formally inclusive, substantively extractive institutional trap.

Part V — Measurability and summary

5.1 What is worth tracking? (proposed KPIs)

The success of the reform — at the level of proposal, not government decision — can be tracked over 6/12/24-month horizons with four performance indicators (KPIs):

  1. Budgetary transparency index: the Hungarian central state budget’s IBP (International Budget Partnership) Open Budget Index score. Baseline 2025: around 45–50 points on the 100-point scale (low-medium transparency level). Target: ≥ 75 points by 2028.
  2. Eurostat compliance deadline: the deadline compliance rate of submission of quarterly reports under the ESA-2010 standard. Target: 100% from month 12.
  3. Independent fiscal council publication cycle: the proportion of quarterly reports of the Independent Fiscal Council appearing according to the timing rule. Target: ≥ 95% from month 18.
  4. Sovereign-debt sustainability trajectory: Hungarian gross sovereign debt as a share of GDP. Baseline March 2026: 77.9%. Target (proposal, not government decision): declining trajectory, ≤ 70% by 2030.

5.2 Summary

The HUF 286 billion case can go in two directions. One is the political mutual accusation path: at every change of government, the successor uncovers hidden items, and the previous government denies them — endless narrative conflict. The other is the institutional reform package path: independent fiscal council, mandatory quarterly publication, parliamentary investigative committee. MIAK’s request to the government and the National Assembly: do not target only proof or rebuttal of the HUF 286 billion case, but also the system-level answer — in the next 180 days prepare the statutory framework of the Independent Fiscal Council, on day 60 set up the parliamentary investigative committee, on day 90 bring the quarterly ESA-2010 publication protocol into force. This reform is directly linked to two of MIAK’s foundational values: data-drivenness, because the basis of institutional defence is accessible, verifiable data — not political goodwill; and transparency, because in a functioning democracy the government’s budget communication must be externally verifiable, not internally certified.

Part VI — Justifications and further sources

6.1 Framing in the press across the spectrum

In the left-liberal band (Telex, HVG, 444.hu) the frame is the institutional-legal reading. Telex (18 May 2026) brings to the fore the ÉKM (Ministry of Construction and Transport) Vitézy-line detail: concrete portfolio-level deficit focus. HVG (18 May 2026) reinforces the political fear around the term austerity: “Fidesz says they did not falsify the budgetary data, and Tisza is preparing for austerity measures.” — drawing the structure of the accusation frame. 444.hu (18 May 2026) gives a separate article to the 77.9% sovereign-debt ratio, deepening the factual basis. Népszava on this day gave only a portal-level reference.

In the mainstream-market band (24.hu, Portfolio, ATV), Portfolio (18 May 2026) conveys the original statement — “Tisza government: the previous government falsified this year’s budget” — giving an economy-market reading (drawing the attention of market players and investors to the fiscal risk). 24.hu (18 May 2026) covers the growth of sovereign debt in a separate article: “Sovereign debt soared in the last months of the Orbán government”. ATV (18 May 2026) gives the time frame and the government narrative.

In the conservative / government-critical band (Magyar Nemzet, Mandiner), the focus is on the rebuttals and the Tényi complaint: Magyar Nemzet (18 May 2026) put István Tényi’s complaint on the front page — “István Tényi filed a complaint after Magyar Péter and others said the previous government falsified the budget” — signalling that the legal-accusation thread is launched as a counter-attack from the Fidesz side. Mandiner (18 May 2026) presents the same: “Here is the rebuttal: the Fidesz–KDNP government concealed no budgetary item whatsoever.”. The difference between the two bands is not in the facts but in the placement of the burden of proof: in the left-liberal reading on Fidesz, in the conservative reading on Tisza.

6.2 Facts and data

The key data of Hungarian public finances are fixed by MIAK ground-truth fact data (based on KSH, Eurostat 2025-26 reports):

  • GDP growth: 2024: +0.5%, 2025 (preliminary): +2.1%.
  • Inflation (CPI): 2024: 3.7%, December 2025: 4.3%.
  • Unemployment: December 2025: 4.1%.
  • Gross sovereign debt to GDP: March 2026: 77.9% (24.hu 18 May 2026, 444.hu 18 May 2026).
  • Maastricht debt threshold: 60% (EU treaty-level reference).

The context of the HUF 286 billion: in relation to 2025 GDP (around HUF 86,000 billion) it is around 0.33%; in relation to the annual health budget (around HUF 2,500 billion) it is around 11.4%; in relation to the annual pharmaceutical-subsidy sub-budget within health (around HUF 250 billion) the sub-budget is larger than the full annual volume. The order of magnitude from a policy perspective is therefore not a system crisis, but a structural precedent — which is exactly why an institutional response is warranted.

6.3 Policy dimensions

The topic directly touches the following MIAK policy areas:

  • Economy (programme points) — direct link with G1 (data-driven budget), G19 (radical transparency in economic decision-making), G23 (sovereign-debt sustainability framework) programme points.
  • Transparency and anti-corruption policy (programme points) — A1 public-money dashboard and A8 cohesion-policy accountability framework.
  • Justice (background) — procedural framework of the public-document forgery allegation, EPPO coordination.

6.4 Literature audit detail

6.4.1 János Kornai: Economics of Shortage

In his classic work, Kornai (1980) analyses the components of the paternalistic state: he types the state–microorganisation relationship system on five levels (chapter 22). In subsection 22.4 he details how, at higher levels of paternalism, the budget constraint softens — i.e. for economic actors, keeping balance between their own revenue and expenditure is not a vital obligation, because “someone” — the state — will bail them out in case of trouble. This is the soft budget constraint, one of Kornai’s most famous concepts.

“The softening of the budget constraint is not simply a technical phenomenon. It reflects the fundamental unresolved questions of responsibility and autonomy in the given system.” (Chapter 22, paraphrase)

In MIAK’s reading, the macro-level soft budget constraint is the same logic, only extended to the relationship between the state and the voters (as public principals): if the government knows that the numbers can be hidden or re-booked afterwards (and the political actor of the next cycle inherits the problem), the disciplining mechanism disappears. The Independent Fiscal Council (proposal 3.1) narrows exactly this “subsequent bailing-out” — or concealing — possibility.

📖 Source: János Kornai: Economics of Shortage (1980), Chapter 22 “Degrees of paternalism”

6.4.2 Reinhart–Rogoff: This Time Is Different

Carmen M. Reinhart and Kenneth S. Rogoff (2008) in their study “This Time is Different: A Panoramic View of Eight Centuries of Financial Crises” analyse 800 years of financial-historical data of 66 countries. One of their central lessons:

“Serial default is a nearly universal phenomenon as countries struggle to transform themselves from emerging markets to advanced economies. Major default episodes are typically spaced some years (or decades) apart, creating an illusion that ’this time is different’ among policymakers and investors.”

The concrete manifestation of the “this time is different” illusion: governments are inclined to not fully communicate to markets the off-balance-sheet debt denominated in domestic currency, because traditional “crisis-warning” systems focus on a significant part of foreign debt. Reinhart-Rogoff document that hidden domestic debt gives a consistent harbinger of eventually erupting crises. The HUF 286 billion Hungarian case is not a system crisis, but fits its pattern into the global-economic arc drawn by Reinhart-Rogoff — and that is precisely why it warrants the structured audit protocol carried out by independent bodies.

📖 Source: Carmen M. Reinhart — Kenneth S. Rogoff: This Time is Different: A Panoramic View of Eight Centuries of Financial Crises (NBER Working Paper No. 13882, 2008); also the 2009 book version This Time is Different: Eight Centuries of Financial Folly

6.4.3 Acemoglu–Robinson: Why Nations Fail

Acemoglu and Robinson (2012) in Why Nations Fail draw the duality of inclusive and extractive institutions. Budgetary transparency is one of the basic hallmarks of an inclusive institutional system: the political class in power is subject to the same transparency as private-economy actors. In extractive systems — even if formally democratically elected governments are involved — budgetary information becomes an internal political tool: a government applying selective access to data is able to persistently mislead voters, and put markets at risk. The structural question of the Hungarian 2014–2026 period (independently of whether the legal proof of the HUF 286 billion case succeeds or not) is whether the substantive enforcement of the ESA-2010 standard has been ensured in a way that is externally verifiable.

📖 Source: Daron Acemoglu — James A. Robinson: Why Nations Fail (2012)

6.5 International comparison

The Independent Fiscal Institution (IFI) is a canonised form in European practice: in most OECD member states (28 of 38) it operates in some form. The highest independence-rated benchmarks (based on the OECD IFI Database 2024): the Office for Budget Responsibility (United Kingdom, since 2010), the Congressional Budget Office (USA, since 1974), the Productivity Commission’s budget unit (Australia), and the Centraal Planbureau (Netherlands, since 1945). Their common elements: two-thirds parliamentary confirmation for leadership, own budget from a source independent of the executive, and mandatory parliamentary hearing right before the debate of every new budget law. The Hungarian proposal 3.1 is directly integrable with this template — extending the existing Fiscal Council or setting up a new institution alongside it.

Economy

  • G1 — Data-driven budget
  • G19 — Radical transparency in economic decision-making
  • G20 — Economic-policy impact assessment system (Drucker audit)
  • G23 — Sovereign-debt sustainability framework

Transparency and anti-corruption policy

  • A1 — Public-money dashboard
  • A6 — Strengthening checks and balances
  • A8 — Cohesion-policy accountability

Proposed new programme point: Mandatory ESA-2010 quarterly publication protocol — for the Economy area, as a supplementary detail to programme point G1 (data-driven budget).

6.7 List of sources

Press sources (MIAK press monitor, 19 May 2026 — topic 2):

Knowledge-base references (literature):

  • 📖 János Kornai: Economics of Shortage (1980)
  • 📖 Carmen M. Reinhart — Kenneth S. Rogoff: This Time is Different: Eight Centuries of Financial Folly (2009)
  • 📖 Daron Acemoglu — James A. Robinson: Why Nations Fail (2012)
  • 📖 Robert Klitgaard: Controlling Corruption (1988)

MIAK internal materials:

  • MIAK policy area: Economy (programme points; programme point IDs: G1, G19, G23)
  • MIAK policy area: Transparency and anti-corruption policy (programme points; programme point IDs: A1, A6, A8)
  • MIAK press monitor, 19 May 2026 — topic 2, score: 88/100

Supplementary public data sources:

  • Eurostat ESA-2010 Hungarian public-finance time series
  • KSH gross domestic product and sovereign-debt statistics
  • IBP (International Budget Partnership) Open Budget Index 2025 — Hungarian score
  • OECD IFI Database 2024 — international practice of independent fiscal institutions

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