The EU's historic stimulus fund is a major topic of controversy and decisions for the autumn term of Parliament.

A sensitive topic will enter the Great Hall of Parliament, as long as Prime Minister Sanna Marin (sd) introduces the topic with her announcement by the Prime Minister.

Marin will update Parliament on the progress of the project, and will open a debate on the subject with his announcement, but Parliament will probably receive bills later in the autumn and the end of the year.

This is a € 750 billion stimulus package to be set up outside the EU budget, to be financed by the largest debt financing in the EU's history, to be distributed to EU countries in the form of free grants and semi-free subsidies.

This is the first time in the Union's history that the EU intends to finance its budget expenditure with debt financing.

Debt financing is a politically and legally difficult issue for the Recovery Fund, as the financing model for the Recovery Fund may be prohibited - or barely allowed - debt financing under the EU Treaties.

In the past, the EU's own institutions, such as the Commission and the Council, have considered debt financing for EU budget expenditure to be prohibited.

The Finnish Parliament also faces the difficult question of whether the stimulus fund should be interpreted as a prohibited debt arrangement - or whether it will look through the ban and accept the stimulus fund model, in which debt financing circulates outside the budget and is simply recorded in the budget as revenue.

Another difficult interpretation concerns receivables and payments from Finland and other countries - and is crystallized in the question of how much Finland receives and how much it pays.

Parliament hears exact figures on the subject, which, however, are not as accurate and reliable as one would think of the number of decimals.

The structure and conditions of the recovery fund are such that it is not possible to determine the exact receipts or payments of Finland or other member states until Parliament has to make billion-dollar decisions on the arrangement.

In practice, Parliament has to approve - or reject - joining the EU Recovery Fund without precise information on the distribution of money or costs between EU countries.

Even Finland's receivables, payments and the resulting position of the net payer or payee cannot be estimated.

Decisions must be taken on the basis of good faith and speculation, because the exact targeting of grants from the stimulus fund by country will not be locked in until a couple of years.

Debt repayment, on the other hand, will run until 2058, and there is still no certainty as to how it will be paid, let alone final contributions between countries.

In due course, the debts will be paid off with some new EU taxes or other types of revenue that will be invented over time, but there are still only suggestions and outlines.

Or they are paid with increases in membership fees.

According to an estimate made in July, the government expects Finland to receive grants of about three billion euros from the stimulus fund and to pay six billion euros for them in due course.

The numbers may keep itching, but they may as well grow or shrink.

More uncertainty will come to the recovery fund's figures if its cash flows are to be subject to the EU's established budgeting practice - and an automatic annual inflation increase of 2%.

The amount of EUR 750 billion in the headings could turn out to be more than EUR 100 billion.

Perhaps the precise demarcation of responsibilities emphasized in Finland's negotiating objectives did not quite mean such uncertainty about the receivables and payments of the largest EU project in years.