40th Birthday T-shirts

Turning 40 deserves a T-shirt that matches the mood of the day, whether that means cheeky humour, confident attitude or a more personal nod to favourite pastimes. The 40th Birthday T-shirts in this category focus on milestone-ready slogans and easy-to-wear designs that work for parties, casual gatherings and gift giving.

Styles for different personalities

Some designs lean into classic birthday humour with phrases like “Not old just 40”, “40 and still crushing it” and “Never 39 Again”. Others have a more proud, reflective feel, with messages about wisdom, experience and still going strong. There are also options with a more playful tone, including wine-themed and kiss-me styles.

Hobby and interest themes

If you want something beyond a standard age slogan, this range also includes 40th birthday tops inspired by interests such as hiking, fishing, coffee and gym life. These are useful when you want the gift to feel more specific to the wearer rather than simply focused on their age.

Choosing the right fit and design

Across the category, you can select from men’s and women’s size options, and T-shirt colour choices are available. Some designs also offer text colour choices, while one style includes a field to change the year wording. If you are buying as a gift, matching the slogan or hobby theme to the wearer is usually the easiest way to choose well.

For designs with a printed birth year, check that the year and birthday age match the recipient and the year of the celebration. A fixed birth year does not represent the same age every year.