How to Read Validator Commission History Before You Delegate

By Margaret Okonkwo

When you delegate SOL to a validator, a portion of your inflation rewards goes to that validator as commission. The rate is set by the validator operator and can be changed. A validator advertising 5% commission today might have charged 8% six months ago — and could raise it again without warning you directly.

Where to find commission data

Every validator has a vote account on Solana. Block explorers list the current commission percentage on the validator’s page. To see historical changes, look for the “commission history” or “config changes” section, depending on the explorer you use.

The key fields are:

• Current commission — the percentage taken from inflation rewards before they reach delegators
• Last update slot — when the commission was last modified
• Previous values — some explorers chart changes over time

Why history matters more than the current number

A validator with a stable 7% commission over two years tells a different story than one that dropped from 10% to 3% last week. The recent drop might attract new delegators, but it could also be reversed once stake flows in.

Look for patterns:

• Gradual increases suggest rising operational costs or a shift in business model
• Sudden drops before epoch boundaries may be promotional
• Frequent toggling is a red flag for long-term delegators

Cross-referencing with stake changes

Commission changes often correlate with stake inflows or outflows. If a validator lowered commission and their active stake jumped 20% in the same epoch, the lower rate may have been a deliberate strategy to attract delegators.

Check the validator’s stake history alongside commission history. A validator losing stake while keeping commission steady might be struggling with uptime or reputation rather than pricing.

What to do with this information

Commission is one factor among several — uptime, skip rate, and stake concentration matter too. Use commission history to narrow your shortlist, then book a reference session if you want help interpreting the full picture for validators you are considering.

This article is for educational purposes. It does not recommend any specific validator.