Kindness Thank you Letters

Dear {Recipient},

Thank you for the kindness you showed me while {what you were doing when it happened}. I really appreciate what you did for me—it's not every day that someone {what they did for you}.

You're such a great {friend/sibling/etc.} and I'm very lucky to have you. Please let me treat you to {lunch/a movie/etc.} this weekend.

Best,
{Your Name}

Hi {Recipient},

I don't think I've ever told you how grateful I am to have you as my {friend/neighbor/colleague/etc.}. You're one of the most trustworthy people I know, and I can always count on you to lend me a hand when I need it. In other words, you're awesome. Thanks for everything!

Warmly,
{Your Name}

Dear {Lender},

Thank you so much for lending me the money for {purpose}. I wouldn't have been able to {desired outcome that was achieved} if it weren't for your kindness. I promise to pay you back by {date}.

With gratitude,
{Your Name}

Dear {Customer},

Thank you for the generous tip you left our staff during your most recent {visit to/stay at} {establishment}. It was our pleasure to serve you and we hope to see you again soon!

Sincerely,
{Your Name}
{Your Role}

Hi {Recipient},

Thank you so much for helping me with {situation/issue}. I couldn't have {end result that was achieved} if you hadn't come to my rescue. I truly appreciate your kindness!

{Your Name}