Tax Rates 2024 2025. In the u.s., there are seven marginal rates — 10%, 12%,. For dividends, ireland’s top integrated tax rate was the highest among european oecd countries (57.1 percent), followed by denmark (54.8 percent) and the united kingdom.

Here’s how those break out by filing status: Asked about the impact of increasing ni contributions for employers by 1.2% from april 2025, she says: