> ## Documentation Index
> Fetch the complete documentation index at: https://docs.onemrr.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# How MRR is calculated

> The rules OneMRR applies to every source, and the settings that change your numbers.

MRR is the monthly price of every active subscription at month end, after discounts. It excludes tax, usage, one-time charges and free trials. OneMRR applies the same rules to every source and rebuilds its history from your billing, so past months stay consistent.

You can read the rules any time under **Settings → Revenue calculations → MRR rules**.

![The MRR rules in Settings outlined](https://mintcdn.com/one-mrr/q05aXT_0moaoPNhC/images/analytics/mrr-rules.png?fit=max\&auto=format\&n=q05aXT_0moaoPNhC\&q=85\&s=46987388f8281e459884b1d4f2925df4)

| Rule | How it works |
| - | - |
| Annual plans | Divided by 12. $300 a year counts as $25 MRR. |
| Discounts | Applied. MRR is what the customer actually pays. |
| Free trials | \$0 until the first paid invoice or bill. |
| One-time charges | Excluded, such as setup fees and credit packs. |
| Cancellations | MRR stays until the paid term ends, then counts as churn in that month. |
| Past due | Stays in MRR until the subscription is cancelled. |
| Plan switches | Count immediately as expansion or contraction, not as churn plus a new customer. |
| Wix renewals | Inferred from payouts. A missed renewal is churn at the end of the paid term, after a grace period. |
| Currency | Everything is shown in US dollars. When only the exchange rate changes, the difference is a **Currency** movement, never expansion or contraction. |

## Before or after marketplace commissions

By default, MRR is what customers pay, before marketplace commissions. That's the standard definition. Under **Settings → Revenue calculations → Revenue basis**, you can choose **Estimated MRR after marketplace commissions** instead. It takes out Wix's and Shopify's commission at the rates below it.

OneMRR measures each commission rate from the last 12 months of payouts. To use your own agreement's rate, type it under **Marketplace commissions** and select **Save**. Payment processing fees aren't deducted, so this isn't take-home revenue.

You can also switch between the two on any report with **MRR / After commissions** in the filter bar.

## Recalculate history

Every sync already rebuilds your history. If you restored a backup or want to start fresh after changing a rule, select **Settings → Advanced → Recalculate revenue history**. Nothing is fetched from your platforms, and no data is deleted.

Every change to a calculation setting is recorded under **Change history**, with who made it.


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