How BigCommerce Fee Calculation Works
BigCommerce processing fees have two components: a percentage fee (2.9%) and a fixed per-transaction fee ($0.30).
The formula is:
Fee Per Transaction = (Order Total x 0.029) + $0.30
Total Monthly Fees = (Fee Per Transaction x Transactions) + Plan Fee
Net Revenue = (Order Total x Transactions) - Total Monthly Fees
For a $500 order: ($500 x 0.029) + $0.30 = $14.80 per transaction.
With 50 monthly transactions and a $29.95 Standard plan, total fees are ($14.80 x 50) + $29.95 = $769.95, leaving $24,230.05 in net revenue.
Fee Impact by Order Size
The fixed $0.30 fee means smaller orders pay a proportionally higher effective rate:
| Order Total | Fee Per Transaction | Effective Rate | Monthly Fees (50 txns, Standard) | Net Revenue |
|---|---|---|---|---|
| $50 | $1.75 | 3.50% | $117.45 | $2,382.55 |
| $100 | $3.20 | 3.20% | $189.95 | $4,810.05 |
| $200 | $6.10 | 3.05% | $334.95 | $9,665.05 |
| $500 | $14.80 | 2.96% | $769.95 | $24,230.05 |
Merchants with average orders under $100 should pay close attention to the effective rate — the $0.30 fixed fee pushes it above 3%, which can erode margins on low-ticket items.
Plan Comparison at Scale
At higher volumes, the plan fee becomes a smaller share of total costs.
With 200 monthly transactions at $500 each:
| Plan | Plan Fee | Processing Fees | Total Monthly | Annual Cost |
|---|---|---|---|---|
| Standard | $29.95 | $2,960.00 | $2,989.95 | $35,879.40 |
| Plus | $79.95 | $2,960.00 | $3,039.95 | $36,479.40 |
| Pro | $299.95 | $2,960.00 | $3,259.95 | $39,119.40 |
The processing fees dominate — the difference between Standard and Plus is only $50.00/month.
Choose your plan based on features (abandoned cart, customer segmentation) rather than fee savings alone.
