Is a soccer player's annual salary before or after taxes? Let's say for La Liga for example!

Generally speaking, salaries in the Premier League and Bundesliga refer to pre-tax if there is no other note attached.

Salaries in Serie A, La Liga, and Ligue 1 are after-tax if nothing else is attached to them.

But the Premier League is about weekly salaries, La Liga, Bundesliga, Serie A and Ligue 1 are about annual salaries. And the Premier League unit is the pound, the others are usually the euro.

For the clubs, it is the pre-tax wages of the players that need to be considered, as it is the clubs that have to bear the expenses, including the tax payment. For the players, it's how much they actually get after paying personal income tax that's fundamental to consider.

why the Premier League counts weekly wages:

In fact, the UK and some Commonwealth countries maintain the tradition of weekly salaries to this day, and some businesses do pay weekly wages. However, because most contracts between footballers and clubs are on a yearly basis (from the signing date to June 30 of a given year, to be precise), and to simplify the workload, many teams in the Premier League still pay their players on a monthly basis.

Converting a weekly salary to an annual salary is actually quite simple, just multiply the weekly salary by 52. Even though they don't play every week, Premier League players still get paid for a full year, or 52 weeks. Therefore, Rooney's annual salary is also 30 * 52 = 15.6 million pounds, then equivalent to about 18.9 million euros. Due to the recent appreciation of the pound against the euro, this translates to about 21.6 million euros at the current exchange rate.

Tell you about the top tax rates in the top five league countries (not much more about the various brackets):

United Kingdom: since April 2013, the top rate of personal income tax has been reduced from the previous 50% to 45%

Spain: since January 2015, the top rate of personal income tax has been reduced in most regions from the previous 52% to 47%

Italy: from 2005 to the present, the top rate of personal income tax in Italy is 43%

Germany: from 2007 to the present, the top rate of personal income tax in Germany is 45%

France: in 2015, the top rate of personal income tax in France is 45%

But Monaco is a special team:

Because Monaco is an independent sovereign state, it does not belong to France. As a result, FC Monaco, which plays in Ligue 1, has a huge advantage that is unique in all of Europe.

It is well known that Monaco is known as Europe's "tax-free paradise", where expatriates can enjoy tax-free privileges. Specifically for the club, non-French players who play for Monaco do not pay personal income tax, and are only required to pay a percentage of their social security contributions for their pensions and healthcare, which can be withdrawn if they leave in the future.

French players who play for Monaco are not so lucky, as they still have to pay personal income tax to the French government like their compatriots at other Ligue 1 teams, according to a reciprocal agreement between France and Monaco.

That is precisely why Monaco's wealthy owners were able to offer the likes of Falcao tempting contracts in his first two years and quickly build a luxury squad.

Additionally:

The personal tax rates in Turkey and Russia are 15 percent and 13 percent, respectively, making playing in their leagues uniquely attractive. It's not too hard to understand why so many powerful players and talented youngsters from South American soccer would choose to go to the Turkish and Russian Premier Leagues to seek gold.

In China, the top end of the personal income tax scale is 45 percent on anything over 80,000 yuan a month.

Also, Germany has a church tax:

Germany is one of the few countries in Europe that still maintains a church tax. The church tax is not calculated on income, but on the income tax payable. All members of the Roman Catholic Church and Evangelical Protestant Churches are required to pay a church tax of 8-9% of their personal income tax (i.e., 1-4% of their income), which is collected by the treasury and given directly to the church. The number of people who pay church tax is around 70% of the entire German population. Therefore, in most cases Germans will be taxed as church taxpayers by default, but this tax burden will no longer be withheld if they indicate that they are atheists in the beliefs section of their household registration.

Some policies to limit wages:

Along with the enormous pressure on clubs from rising player wages, managers in national leagues have begun to impose some policy restrictions.

Premier League:

The Premier League has introduced new wage regulation rules since 2013, all clubs with a wage bill of more than 52 million pounds can only increase their wage bill by up to 4 million pounds more per season in the future, on top of the increase in commercial revenue in that season. The penalty for violating this rule is that the next transfer period can only "sell one to buy one", and the wages of the sold player must reach more than 75% of the imported player. Serious cases will be directly deducted from the league points.

The rule applies to all Premier League and Championship clubs, with the likes of Queens Park Rangers having been penalized for breaching it, and a stricter wage policy was proposed in 2014 but rejected in a pilot vote by Championship clubs.

La Liga:

Spanish soccer's professional league, La Liga and La Liga B have had a mandatory "salary cap" system since 2012. The specifics of the system are that the sum of players' wages and transfer fees is limited to 70% of a club's revenue per season.

For the 2014-2015 season, the La Liga league gave Barcelona a salary cap of 348 million euros, Real Madrid 328 million euros, and Getafe only 18.7 million euros. Therefore, if Getafe registers Pedro Leon, who earns €2.2 million a year, in the 25-man roster for La Liga entry, the club will inevitably exceed the salary cap.

In the end, Pedro Leon failed to register and no other team made an offer that would have satisfied Getafe. The former wind-chaser waited in the stands for four months before making his season debut in the 13th round of the league.

Additionally, if you're talking about La Liga, let me tell you about La Liga's "guaranteed minimum wage":

Every La Liga player with a professional contract receives at least 240,000 euros per year (120,000 euros per year for each player in La Liga B). Clubs are required to pay social security contributions to their players, a right that was also acquired by Spanish players through strikes, the first of which took place in La Liga in 1979, and which had the benefit of the players' successful enrollment in social security. But the money pales in comparison to the wage bill, with clubs contributing just tens of thousands of euros a year to each player.

That's all there is after an hour of organizing, you must be a small fan, I hope this helps.