Reddit karma is a reputation score that shows how much other users have upvoted your posts and comments

When you post something on Reddit, other users can upvote it (if they like it) or downvote it (if they don't). Your karma is the total of those votes across everything you've posted. It's a public number on your profile that other Redditors can see. Subreddits — the individual communities within Reddit — sometimes use your karma as a filter: a community might require you to have at least 100 karma before you can post there, or 1,000 karma before you can participate in certain threads.

Karma itself doesn't do anything for you outside Reddit. It doesn't earn you money, it doesn't affect your real-world reputation, and Reddit doesn't use it to rank search results. But within Reddit communities, karma signals that you've been around long enough and that other users have found your contributions useful or entertaining. Some people build karma deliberately; others accumulate it without thinking about it.

Key Takeaways

  • Karma comes from upvotes on your posts and comments, and most subreddits require a minimum amount before letting you post or participate in certain threads.
  • The fastest way to build karma is commenting on popular posts in large subreddits where thousands of people will see your comment.
  • Subreddits have different cultures and rules — what gets upvoted in one community will get downvoted in another, so read the community guidelines before posting.
  • Posting the same thing repeatedly, asking for upvotes, or copying other people's comments will get you downvoted and may get you banned from communities.
  • Karma thresholds exist to prevent spam and low-effort posts, but they're not the same across Reddit — check each subreddit's rules to see what it requires.

Why subreddits use karma thresholds

Many subreddits set minimum karma requirements because new accounts are often used for spam, scams, or harassment. If you just created an account and when ready try to post promotional links or ask for money, moderators want to slow you down. A karma requirement forces you to spend time in the community first, contributing things that other users actually want to see.

The threshold varies wildly. Some subreddits have no requirement at all. Others require 100 karma. Large communities like r/AskReddit or r/funny might require 1,000 or more. A few highly moderated communities require 10,000 karma or higher. The rules are set by each subreddit's moderators, not by Reddit itself, so you need to check the sidebar or "About" section of any community before you try to post there.

The fastest way to build karma: commenting on popular posts

Posting original content takes time and often gets buried. Commenting on posts that are already popular is much faster. When a post reaches the front page of a large subreddit, thousands of people will see it. If you leave a thoughtful, funny, or useful comment early (in the first hour after the post goes up), you have a real chance of getting hundreds or thousands of upvotes.

The key is timing and relevance. Sort a large subreddit by "New" and watch for posts that are starting to gain traction. Read the post carefully, understand what people are responding to, and add something that fits the conversation. A one-liner joke that lands well can earn 500 upvotes in an hour. A detailed answer to someone's question can earn even more. Avoid generic comments like "This" or "Came here to say this" — those get downvoted and don't help you.

If you want to build karma steadily without chasing viral moments, find smaller subreddits related to your actual interests and participate regularly. A comment in r/gardening or r/homerepair might only get 20 upvotes, but if you do that five times a week, you'll hit most karma thresholds within a month or two.

Understanding what gets upvoted in different communities

Reddit communities have completely different cultures. A joke that gets 5,000 upvotes in r/funny will get you banned from r/AskHistorians. A detailed technical explanation will thrive in r/explainlikeimfive but might be ignored in r/memes. Before you post anywhere, spend at least a few days reading the top posts and comments in that subreddit. Look at what people are responding to. Read the community rules — they're usually pinned at the top or listed in the sidebar.

Some communities reward humor. Others reward informed. Some want personal stories; others want data and sources. r/science requires citations and removes jokes. r/Showerthoughts wants brief, clever observations. r/IAmA (Ask Me Anything) wants people with interesting experiences or credentials. If you post the wrong type of content in the wrong place, you won't get upvotes — you'll get downvotes or a removal from moderators.

What not to do when building karma

Asking for upvotes directly is against Reddit's rules and will get your post removed. Posting the same comment multiple times, copying comments from other threads, or using multiple accounts to upvote your own posts will get you shadowbanned (your posts become invisible to everyone except you). Moderators take this seriously because it ruins the voting system for everyone else.

Don't post low-effort content just to hit a karma threshold. Subreddits that require karma are trying to filter out spam and throwaway accounts. If you post "upvote me" or "need karma" repeatedly, you'll be downvoted into negative karma, which actually makes it harder to post anywhere. Some subreddits will even ban you for karma-farming behavior.

Avoid controversial topics when you're new. If you're trying to build karma quickly, don't jump into heated political or religious debates in your first week. Stick to communities where your interests align with the community's interests, and contribute things you actually know about or care about.

How comment karma and post karma are tracked separately

Reddit shows you two karma numbers: comment karma (from comments you've made) and post karma (from posts you've submitted). They're added together to make your total karma, which is what most subreddits check. Some communities care about one more than the other — a subreddit for writers might care more about post karma, while a community for casual discussion might care more about comment karma.

For most people building karma from scratch, comment karma is easier and faster to accumulate. You can leave dozens of comments in a day if you're active. Posts take longer to write and are easier to downvote if they don't fit the community. Once you have enough total karma to post in the communities you want, you can focus on whatever type of content you actually enjoy.

Building karma in niche communities versus large ones

Large subreddits like r/AskReddit, r/funny, and r/pics have millions of members. A single upvote from thousands of people can happen fast, but competition is fierce. Your comment might be one of 10,000 in a popular thread. Smaller subreddits — communities with 10,000 to 100,000 members — are often easier to build karma in because there's less competition and moderators are more active in fostering discussion.

If you're interested in a specific topic, find the subreddit for it and start there. A thoughtful comment in r/HomeImprovement or r/Cooking might get 50 upvotes consistently, which adds up. You'll also build genuine connections with people who share your interests, which makes Reddit more enjoyable than just chasing upvotes in massive communities.

Frequently Asked Questions

How long does it take to build enough karma to post in most subreddits?

Most subreddits that have a karma requirement ask for 100 to 500 karma, which you can hit in a few weeks of regular commenting. Larger communities might require 1,000 or more, which could take a month or two depending on how active you are. If you comment on popular posts in large subreddits, you can hit 1,000 karma in a few days.

Can I lose karma if my posts get downvoted?

Yes. If a post or comment gets more downvotes than upvotes, your karma decreases. However, Reddit has a system where downvotes on a single post can only take you so far negative — you won't lose thousands of karma from one bad post. But if you consistently post things the community doesn't like, your karma will go down.

Do I need karma to create a subreddit?

No. You can create a subreddit with a brand-new account. However, Reddit requires you to be at least 30 days old and have some activity before you can create a community. This is to prevent spam and throwaway communities.

What happens if I have negative karma?

Negative karma doesn't ban you from Reddit, but some subreddits will automatically filter out posts from accounts with very low karma. You can still post and comment, but you might face longer delays between posts (Reddit slows down posting for accounts with negative karma in some communities).

Is there a maximum karma I can earn?

No. There's no cap on karma. Some Reddit accounts have millions of karma from years of active posting. Once you've built enough karma to post in the communities you care about, the number itself stops mattering — it's just a reflection of how much the community has valued your contributions.