Backcom là gì? How Back Commission (hoàn phí) Works in Forex
An independent explainer of forex rebates: where the money comes from, how percent-of-spread and per-lot crediting works, and the red flags to check before using any backcom service.
Open Exness Account →Backcom (back commission, hoàn phí in Vietnamese) is a partial refund of trading costs that an introducing partner returns to a referred trader. Done honestly, the money comes from the share the broker already pays the partner — not from extra client fees. Through Exness's official rebate system, a partner can pass up to 100% of that share back to the client, with daily, weekly or monthly payouts (source: Exness Partners Help Centre).
How backcom works: key facts
- "Backcom" is short for back commission (hoàn phí in Vietnamese): a partial refund of trading costs that an introducing partner returns to a referred trader, lowering the effective cost per closed lot below the account's published spread or commission.
- Exness pays its introducing partners a share of the trading costs of clients they refer — up to 40% of those costs at the top tier (source: Exness affiliates site) — and through the broker's official rebate system a partner can pass part or all of that share back to the client (source: Exness Partners Help Centre, "All about the rebate system").
- Published rebate offers on the Vietnamese market are quoted either as a percentage of the spread — roughly 36–40% on Standard-type accounts — or as a fixed per-lot amount, such as about $14.4 per lot on XAU/USD and about $3.2 per lot on EURUSD (sources: backcom.vn; bluesnyaiper.com).
- In the official Exness rebate system payouts run daily, weekly or monthly, rebates are calculated on closed lots regardless of an individual trade's result, and reputable local services credit the amount automatically every day straight to the trading account, like a deposit, with the daily cut-off around 04:00 server time (sources: Exness Partners Help Centre; traderviet.blog; duynenfx.com).
- A backcom is a partner-side cost refund, not broker credit: Exness does not run promotional credit schemes, so any refund reaching a trader comes out of the introducing partner's reward share rather than a marketing scheme run by the broker (source: Exness Help Centre).
- The backcom/hoàn phí niche in Vietnam includes 20+ services — the backcom.vn family, VnRebates, the TraderViet wing — plus active Zalo and Facebook groups and long-running forum threads on VOZ and tinhte (research, July 2026).
- A bigger per-lot rebate does not automatically mean a lower total cost: fntradinglab.com lists about $18 per lot of XAU/USD at XM, about $16.5 at Vantage and about $14.4 at Exness, and XM's figure is higher mainly because a wider Standard spread produces a bigger partner share — total cost is the spread paid minus the rebate.
- Dishonest IBs sometimes enable partner spread markup and pay the "rebate" out of the client's own widened spread — community guides advise comparing live spreads against the broker's published ones (source: backcomhub.com) — while rebates generated by artificial churning volume are voided and self-rebate registration is auto-detected, after which payments stop (sources: PaybackFX; Exness Partners Help Centre).
Rebate models compared: % of spread vs fixed per lot
| Model | How it is calculated | Published example | Source |
|---|---|---|---|
| % of spread | Share of the spread on each closed lot | Standard ≈ 36–40% of spread (≈ $14.4/lot gold, $3.2/lot EURUSD) | backcom.vn; bluesnyaiper.com |
| Fixed per lot | Flat $ amount per each closed lot | Raw Spread / Zero ≈ $2/lot FX, $2.7–3.25/lot gold | bluesnyaiper.com; tinhte.vn |
| Direct crediting to the trading account | Daily deposit-style entry on the trading account (cut-off ≈ 04:00 server time) | Daily crediting described by Vietnamese-market guides | traderviet.blog; duynenfx.com |
| Crediting via a service's internal balance | Accrues on the rebate service's own balance before it reaches the trader | Used by some third-party rebate services | research, July 2026 |
Frequently asked questions
Where does the backcom money come from — is it an extra fee added to trading costs?
When done honestly, no extra fee is involved: the refund comes out of the share the broker already pays its introducing partner for referred trading activity, so the trader pays the same published spread or commission either way. The exception is the markup scam, in which a dishonest IB switches on partner spread markup and pays the "rebate" out of the client's own overpayment (source: backcomhub.com). Comparing live spreads against the broker's published ones is the standard way to detect this.
How is a backcom different from a credit offered by a broker?
A backcom is a partner-side cost refund, while broker credit would be funded by the broker itself. Exness does not run promotional credit schemes; a rebate is a partner-side cost refund taken from the partner's reward share (source: Exness Help Centre). Published rates on the Vietnamese market for Standard-type accounts cluster around 36–40% of the spread, but exact terms vary between partners (per backcom.vn).
Do rebates depend on whether a trade wins or loses?
Rebates are calculated on closed lots regardless of an individual trade's result (source: Exness Partners Help Centre). That reduces effective trading costs, but it does not offset the market risk of leveraged CFD trading — a rebate is a cost refund, not protection against losses. Brokers also void rebates generated by artificial churning volume opened only to farm refunds, and self-rebate registration is auto-detected (sources: PaybackFX; Exness Partners Help Centre).
Can an existing trading account receive backcom?
A rebate applies only to accounts opened under a partner's link. To move an existing profile, a client contacts Exness support via Live Chat with a "Change Partner" request; approval typically takes 24–72 hours, and the rebate then applies only to a new trading account created after the change (sources: traderviet.blog; duynenfx.com; nududo.com). The broker's Help Centre also confirms that a client can ask support to identify the partner a profile is registered under (source: Exness Help Centre).