Introduction
A mining pool referral program is a commercial incentive layered on top of a pool's existing services. It rewards an existing user—the referrer—for bringing a new, qualifying miner to the platform. A referral program does not change how a miner's hardware submits shares, how a pool estimates hashrate, or the Bitcoin network's difficulty and block-reward rules. The pool's payout method, such as PPS+ or PPLNS, determines how mining earnings are calculated. The referral program separately defines the qualifying activity, reward calculation, and eligibility period for the referrer.
This article explains those mechanics and uses ViaBTC's publicly documented fee-based, two-tier referral structure as a concrete illustration. Referral terms are set by each pool, so ViaBTC's calculation base and eligibility rules should not be treated as universal. For participation instructions and account steps, see How to Earn Referral Rewards with ViaBTC Mining.
What Is a Mining Pool Referral Program?
In pooled mining, individual miners combine hashrate and submit shares—proofs of partial work measured against a pool-set share target—so that the pool can track each participant's contribution and distribute block rewards more predictably than solo mining would allow. Pools typically charge a service fee on mined output to cover infrastructure, operations, and payout processing. Pooled mining and share accounting are described in the Bitcoin Developer Guide.
A referral program defines how an existing user is rewarded for introducing a qualifying new user. To understand any such program, identify the referral link or code, the new user's qualifying action, the reward rate and calculation base, and the reward validity period. Registration and subsequent mining activity are required under ViaBTC's rules, but other pools set their own terms.
Under a fee-sharing model such as ViaBTC's, the pool redirects a portion of eligible service-fee revenue generated by a referred account's activity to the referrer. The calculation base matters as much as the percentage: a percentage of pool fees is different from the same percentage of a miner's total earnings.
How Mining-Pool Referrals Differ From Mining Rewards
It is worth separating three distinct categories that are sometimes conflated in informal discussion:
- Mining rewards: BTC (or another coin) paid to a miner based on submitted shares under a payout method such as PPS+ or PPLNS, net of the pool's service fee.
- Pool service-fee revenue: the fee the pool retains from a miner's output in exchange for pool services.
- Referral rewards: a separate incentive paid to a referrer under the pool's referral terms. In ViaBTC's current program, this is a share of eligible service-fee revenue.
A referred miner's hashrate, uptime, and chosen coin can indirectly affect how much service-fee revenue is generated, and therefore how much referral reward is possible under a fee-based program. Under ViaBTC's current rules, the referral rate applies to eligible pool fees rather than the miner's total payout. Confusing these categories can lead to inflated expectations about referral income. See ViaBTC's referral documentation.
How ViaBTC's Referral Program Is Structured
ViaBTC operates two referral reward tiers: General Referral, available to registered users, and Ambassador Referral, which requires an application and approval.
Under ViaBTC's General Referral program, a referrer earns 10% of eligible service-fee revenue generated by a qualifying referred user for 12 months from that user's registration date—not from the date hashrate is first connected. The referral relationship is established at the main-account level and extends to sub-accounts. Rewards from merged-mining coins are excluded, and business agents and their referred users are ineligible. These conditions are stated in the official referral rules.
The Ambassador program increases the reward rate to 20% of eligible service-fee revenue, with no fixed expiry while Ambassador status remains valid. Its duration therefore depends on maintaining that status.
Referred users receive a separate benefit: a 30-day coupon with 50% off pool service fees, as described in ViaBTC's referral upgrade announcement. This reduces the new miner's fee cost and is distinct from the referrer's reward. Users should check the coupon's current terms in their account for applicable conditions.
Referral rewards are allocated daily at 08:30 (UTC+8), although actual crediting may be delayed. The general referral rules place no limit on referral numbers. Separately, the Ambassador FAQ specifies no cap on Ambassador referral rewards. Rewards remain conditional on eligible activity and compliance with the program's rules.
How a Referral Reward Is Calculated
For a fee-based program such as ViaBTC's, the calculation is:
Referral reward = eligible service-fee revenue × applicable referral rate
For ViaBTC's documented rates, this means:
- General Referral: eligible service-fee revenue × 10%
- Ambassador Referral: eligible service-fee revenue × 20%
To illustrate the arithmetic only—not to represent typical or expected earnings—consider a hypothetical case in which eligible service-fee revenue attributable to a qualifying referred account over a given period is 0.005 BTC. Under the General Referral rate, the reward would be 0.005 × 0.10 = 0.0005 BTC. Under the Ambassador rate, it would be 0.005 × 0.20 = 0.001 BTC.
The starting figure is already eligible fee revenue. If 0.005 BTC instead represents the referred miner's total mining earnings, applying the referral percentage directly to that amount would use the wrong base for ViaBTC's program. The formula requires eligible fee revenue attributable to that user over the relevant reward period. ViaBTC's referral upgrade announcement confirms that its referral percentages apply to the corresponding service fees.
These figures depend on the referred account's actual mining activity and the pool's fee structure. They are not fixed payouts and should not be treated as a forecast of referral income. When evaluating another pool, first confirm its stated calculation base rather than carrying over ViaBTC's formula automatically.
When a Referral May Not Generate a Reward
Several conditions can prevent a referral from producing a reward under ViaBTC's published rules, even when a link or code has been shared:
- The new user registers without using the referral link or entering the referral code at sign-up. An existing account does not qualify retroactively.
- The referred user registers but never connects hashrate or generates mining profit. Registration alone does not trigger a reward.
- The General Referral period has lapsed. The 10% rate applies only within 12 months of the referred user's registration date.
- The referred user's output is limited to a merged-mining coin excluded from the calculation.
- The referral relationship involves a business agent or their referred user, who falls outside the standard program.
- The activity triggers risk controls, such as self-referral or other abuse patterns, which can invalidate rewards.
These conditions are documented in the referral rules and Ambassador FAQ. A referral link by itself does not guarantee a reward; the outcome depends on qualifying mining activity and compliance with program terms.
Ambassador Status: Application and Ongoing Requirements
ViaBTC requires at least five valid referred users in the preceding month before applying—main-account users with connected hashrate. Approval also requires a valid account without malicious or suspicious behavior, compliance with current invited-hashrate requirements, and completion of all application fields.
As checked on October 8, 2026, the Ambassador FAQ lists thresholds such as BTC ≥ 300 TH/s, LTC ≥ 5 GH/s, or KAS ≥ 10 TH/s. Meeting the current hashrate requirements is mandatory; the displayed thresholds can change. ViaBTC evaluates applications using referral numbers and hashrate performance and states that review takes place within seven business days after all required information is submitted.
Maintaining status requires at least ten valid referred users each month. This measures referred main accounts with connected hashrate, rather than ten new registrations every month. After three consecutive months below that requirement, status is automatically revoked, Ambassador rewards are canceled, and the account is downgraded to General Referral. These conditions make Ambassador status an ongoing qualification.
Practical Takeaways
To evaluate a mining pool referral program, look at four variables together: the reward rate, the calculation base, the validity period or status requirements, and the eligibility and exclusion rules. A high percentage tells you little without knowing what amount it applies to and which activity qualifies.
ViaBTC's current program illustrates a fee-sharing arrangement: the reward is calculated from eligible service-fee revenue, separately from mining payouts. Its registration-based General Referral period and status-based Ambassador duration also show why reward timing and eligibility deserve attention alongside the rate.
Because referral terms are product policies rather than protocol rules, they can change. Consult a pool's current documentation before relying on specific figures. For ViaBTC account steps and participation instructions, use the dedicated referral guide.
FAQ
Does a referral reward reduce the referred miner's mining payout?
Under ViaBTC's fee-sharing model, the referral reward comes from the pool's eligible service-fee revenue. It is not an additional deduction from the referred miner's payout; the usual pool service fee still applies. See the official referral upgrade announcement.
Can a referral reward be earned without the referred user mining actively?
Under ViaBTC's documented rules, registration alone does not generate a reward. The referred user must connect hashrate and generate qualifying mining profit.
Is the Ambassador rate guaranteed permanently once granted?
No. ViaBTC's 20% rate applies while Ambassador status remains valid. Status is automatically revoked after three consecutive months below the monthly valid-referral requirement, according to the Ambassador FAQ.
Do referral programs work the same way across all mining pools?
Not necessarily. Reward rates, calculation bases, eligibility rules, exclusions, and validity periods are set individually by each pool. Confirm the current official terms of the program you are evaluating.