The base rate
The Whir BTC mixer charges a base service fee of 0.5% on every mix — a competitive rate among crypto mixers in this category. The fee is deducted from the deposit before the payout is routed, so the user receives the deposit minus the service fee and minus the Lightning routing cost. There is no separate withdrawal charge, no monthly minimum, and no fee for a mix that fails before the payout is broadcast.
Volume tiers
Larger mixes pay a smaller percentage because the marginal cost of routing a bigger Lightning payment is not linear. The tiers are public and applied automatically — no negotiation, no off-site coupon.
| Mix amount | Service fee | Notes |
|---|---|---|
| 0.001 – 0.05 BTC | 0.50% | Base tier, applied to most retail mixes. |
| 0.05 – 0.25 BTC | 0.40% | Mid tier, applied automatically. |
| 0.25 – 1.00 BTC | 0.30% | Volume tier for larger mixes. |
| 1.00 BTC and up | 0.25% | Maximum discount tier. |
Lightning routing cost
Because the Whir Bitcoin mixer routes payouts over the Lightning Network, each mix also pays a small routing fee to the Lightning nodes that carry the payment. This cost is set by the network, not by the operator, and is typically a fraction of a percent — one reason readers comparing low-fee BTC mixers consistently flag the Lightning model. For very small mixes it can be the dominant cost; for larger mixes it is almost invisible.
Worked example. A 0.10 BTC mix: service fee of 0.40% (0.0004 BTC), plus a Lightning routing cost of roughly 0.0001 BTC, plus the on-chain payout transaction fee. Total cost is approximately 0.0005 BTC, or about half a percent of the mix amount.
Comparison to alternatives
Classic centralized Bitcoin tumblers historically charged 1–3% per mix, sometimes with a randomized component intended to obscure amount-matching. CoinJoin coordinators charge less but require a compatible wallet, a coordination round, and patience. The Whir BTC mixer sits in between: lower than legacy tumblers, slightly higher than do-it-yourself CoinJoin, and available without installing any specialist software.
What you will not pay
- No registration fee — there is no account to open.
- No deposit-address fee — generating a one-time address is free.
- No fee on a cancelled mix — if the deposit never confirms, nothing is owed.
- No referral markup — there is no affiliate program that quietly raises the rate.
Why the rate is published, not hidden
A published rate matters for two reasons. First, it lets a user verify the exact amount that should arrive before broadcasting the payout. Second, it removes the temptation that historically led centralized Bitcoin blenders to skim a few extra basis points and disappear. The Whir Bitcoin mixer commits to the quoted rate at the moment the deposit address is generated.
Next: how Whir compares