Best Amazon 99p Kindle Deals for September 2025

September is here! Autumn is my favourite time of year so I’m excited to see the start of the ‘ber months!

Plus a new month can only mean one thing. New 99p kindle deals!

There are so many great 99p kindle deals for September 2025 but it can be a bit of a struggle to find all the best books without scrolling through pages and pages of irrelevant books. So I’ve done the hard work for you! I’ve scoured Amazon’s pages to find you what I think are the best buys of the month.

From gripping thrillers that will have you on the edge of your seat to heart-warming romances that’ll give you all the feels, there’s something for everyone.

I’ve tried to limit it to 20 picks per genre. Hopefully, it’s a bit easier to find the books you may be interested in under each section. If you scroll to the end of the post I’ve also included my own personal recommendations.

I update this post each month with the best 99p kindle deals so be sure to bookmark this page for next month!

Here are what I think are the best 99p Kindle deals for September 2025.

Disclosure: This post may include affiliate links. As an Amazon Associate, I earn from qualifying purchases.

Kindle deals for September 2025: Thriller/Mystery

Kindle deals for September 2025: General/Literary Fiction

Kindle deals for September 2025: Romance

Kindle deals for September 2025: Science Fiction / Fantasy

Kindle deals for September 2025: Historical Fiction

Kindle deals for September 2025: Recommendations

The below list contains 99p kindle deals for this month which I’ve read and enjoyed:

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