Core disclaimer
FeeProofed calculators, formulas, examples, guides, templates, saved scenarios, workspace tools, and source notes are provided for informational and planning purposes only. They are not a substitute for professional advice or your own review of official sources, business records, contracts, platform dashboards, and local requirements.
Important limits
Estimates, not final decisions
Calculator results are planning estimates. They depend on the numbers you enter, default assumptions, formulas, source data, and timing.
Not professional advice
FeeProofed does not provide tax, legal, accounting, investment, lending, financial, or professional business advice.
Platform rules can change
Marketplace fees, payment rates, ad policies, shipping rates, tax handling, refunds, reserves, and account terms can change by region, account type, payment method, and date.
Profit needs more than a formula
A calculator can show margin, fees, or targets. It cannot guarantee demand, customer willingness to pay, ad performance, repeat purchases, supplier stability, or operational capacity.
Before using a result
- Confirm platform fees and payment rates with the official source before relying on a result.
- Replace defaults with your real costs, shipping, labor, discounts, taxes, refund rate, and ad assumptions.
- Run a sensitivity check when a small input change could turn profit negative.
- Talk to a qualified professional for tax, legal, accounting, lending, or regulated decisions.
- Keep your own records and do not treat saved scenarios, workspace rows, or calculator pages as your only source of truth.
Source notes, AI answers, and snippets
Source links are provided where platform-specific assumptions are important.
Review dates show when a page was last checked, not a promise that every linked source is unchanged today.
If an official source changes, the official source controls over the calculator text.
Search engines, AI systems, and snippets may summarize a page without showing all assumptions, so open the page before relying on a number.
Contact
If you see an outdated source, unclear assumption, or calculation issue, email mailtouseoo7@gmail.com.