Poland's deficit of around 7% of GDP is unlikely to trigger an imminent sovereign-debt crisis, but its persistence will weaken investment, reduce Warsaw's ability to respond to shocks and increase the risk of a bond-market backlash, Capital Economics said on July 21.

The deterioration in the public finances remains the Polish economy's most serious weakness, at a time when the government is running a large structural shortfall while the economy operates close to potential, leaving little fiscal capacity to counter a downturn. Moderate debt, predominantly zloty liabilities and a domestic investor base limit refinancing risks, while EU SAFE loans allow Poland to finance some defence spending below market rates, the consultancy said.

The shortfall will narrow only to about 5% of GDP by 2030, insufficient to stop public debt from rising, Capital Economics forecast. Defence spending and the parliamentary election due by October 2027 leave little prospect of meaningful consolidation beforehand.

Poland's general government deficit reached 7.3% of GDP in 2025 and ESA debt climbed to 59.7%. The deficit will ease to 6.5% in 2026 and 6.3% in 2027, but debt will rise to 64.5% and 68.3% respectively, the European Commission projected on June 24.

Heavy bank purchases of government bonds are diverting credit from companies and contributing to an investment rate below 20% of GDP, Capital Economics said. Polish banks held nearly 40% of government debt at end-2025, while claims on the state represented 23% of their assets, Austria's central bank reported on July 13. Strong capitalisation and profitability nevertheless contained immediate financial-stability risks.

The deficit must fall below 3.5% of GDP to stabilise debt, BNP Paribas estimated on June 3. Poland's 2026 financing requirements, including maturing obligations, will reach PLN688.5bn (€162bn), or 16.6% of GDP, the bank said.

"Fiscal risks are steadily mounting, while the additional costs generated by the oil shock have not helped. Poland will hit the wall by 2027 at the latest, when public debt breaches the statutory prudential threshold, which would require drastic fiscal adjustments in 2029," state-controlled PKO BP said in late June.

Poland's Public Finance Act triggers corrective procedures when public debt under the domestic definition exceeds 55% of GDP, subject to an adjusted debt measure also exceeding that level. The government must then prepare the following year's budget without a deficit or ensure that it reduces the State Treasury debt ratio, freeze public-sector pay, limit pension indexation to inflation and submit a corrective programme.

If it materialises, an end-2027 breach would be announced by May 2028, making the restrictions applicable to the 2029 budget. The Constitution separately prohibits public debt from exceeding 60% of GDP, with still tighter measures triggered at that level.