Short answer: Alternatives include a carrier calculator, a broker quote, a checkout app, or a managed landed-cost service. The right choice depends on SKU count, market coverage, and how often rules change.
Why spreadsheets break
- Rates, thresholds, fees, and product data move independently.
- A blended percentage misses the actual SKU mix in the cart.
How the alternatives compare
- Carrier calculators are lane-specific.
- Checkout apps calculate, but still need clean inputs.
- A managed service combines cleanup, calculation, and monitoring.
Selection checklist
- Ask how classification and origin are maintained.
- Ask whether the total includes duty, tax, and carrier fees.
- Ask what happens when a rule changes.