I can’t speak for the EU, but in the US charities are federally recognized and there are tax deductions available for donating to them. This being said, it depends on what specific “Planned Parenthood” you donate to.
Planned Parenthood Federation of America (PPFA) works to support health care providers at Planned Parenthood health centers across the country, educate the public on issues of reproductive and sexual health, and advocate for policy to expand access to health care. PPFA is a 501(c)(3) organization, and donations are tax-deductible to the fullest extent allowable under the law.
Planned Parenthood Action Fund (PPAF) is the advocacy and political arm of Planned Parenthood, fighting to advance and expand access to sexual health care and defend reproductive rights. PPAF is a 501(c)(4) organization, and donations are not tax-deductible as a charitable contribution or business expense.