Flash Sale Margin Guard

Three questions answered instantly: Is this discount profitable? What's the maximum safe discount? What's the max that still hits your target margin? Referral fee formulas verified from TikTok Seller University.

Currency

Product basics

Original / Regular Price ($)iYour normal selling price before any discount. Every calculation flows from this number.

Product Cost / COGS ($)iWhat one unit costs you to source or manufacture.

Product Category (auto-fills referral fee)

TikTok Referral Fee (%)iAuto-filled from category. Standard 6% for most categories. Pre-owned = 5%. Manually override if needed.

Target Profit Margin (%)iThe minimum margin you want to protect during the sale. Used to calculate your recommended max discount.

How is this discount funded? iCritical: the referral fee formula is different for each type. Platform-funded discounts still charge fees on the original price per TikTok Seller University.

Flash sale discount

Discount AmountiTikTok allows 10%–90% for Flash Deals (updated Sept 30 2025). Must be ≤ lowest price paid in past 30 days.

Other costs

Affiliate CommissioniAlways calculated on the sale price — not original price. Per TikTok settlement rules.

Shipping Cost ($)iPer order carrier cost. Disabled when FBT is on.

Packaging Cost ($)

Normal Return Rate (%)iYour baseline return rate outside of sales events. Flash sale rate is auto-set to 1.35× this — adjust manually below.

Flash Sale Return Rate (%)iFlash sale return rates are typically 30–50% higher than normal due to impulse purchases. Default: normal rate × 1.35. Adjust if you know your actual rate.

Expected Orders During Sale (optional)iUnlocks total profit impact section — shows how much profit you give up to run the sale and whether the volume justifies it.

Using Fulfilled by TikTok (FBT)?