Why processor fees deserve a side-by-side check
If you invoice clients, run a checkout, or take cards at events, the processor you choose quietly shapes every payout. Stripe, PayPal, and Square all charge a percentage of the transaction plus a small fixed fee, but the published online and in-person rates differ, and the “cheapest” label can flip when your average ticket size changes. A $25 tip jar charge and a $1,000 invoice do not feel the same after fees, even when the headline percentage looks similar.
The Payment Processor Comparison calculator is built for that decision: enter one transaction amount, pick Online or In-person, and see estimated fee dollars, what you keep, and the effective rate for each processor. Rates come from HustleNumbers’ verified processor fee table, sourced from each company’s official pricing pages, with a verification date shown on the results panel. Those published rates change. Always confirm on Stripe, PayPal, and Square before you commit.
What this calculator models
The tool compares three processors using standard card-not-present (online) and card-present (in-person) published rates from the verified table. It applies each rate to your amount, subtracts the fee to show net proceeds, and ranks rows from cheapest to most expensive for that scenario. All math runs in your browser.
What it does not model is equally important:
- Specialty or industry plans, international cards, currency conversion, and chargeback fees
- Negotiated enterprise or volume discounts
- PayPal Goods & Services vs Friends & Family nuances, or subscription-tier marketing add-ons
- Payout timing, dispute tooling, hardware costs, or product fit beyond the fee line
Use the comparison for planning, then verify live pricing for your account type on each processor’s site.
How to use the processor comparison
- Transaction amount: enter a realistic average charge, or use the chip presets ($25, $100, $500, $1,000) to see how fixed per-transaction fees matter more on small tickets.
- Payment channel: choose Online for remote checkout / card-not-present, or In-person for card-present rates (usually lower because fraud risk is lower).
- Read the table: Fee $, You keep $, and Effective rate %. The cheapest row is highlighted as “Best” for that amount and channel only.
Re-run the same amount on both channels if you sell both ways. Many sellers discover that the winner online is not the winner at a pop-up market, or that the gap is small enough that payout speed and dispute tools decide the product choice instead.
How to think about “effective rate”
Published pricing is usually “percent + fixed cents.” On small amounts, the fixed piece looms large; on large invoices, the percentage dominates. Effective rate is total fee divided by the charge amount: the number that lets you compare apples to apples across processors without doing mental math. If your mix is mostly $40 orders, optimize for that ticket. If you occasionally collect $5,000 retainers, check both ends of the range.
Key ideas for freelancers and sellers
Fees are not the only decision. A processor that is a few cents more expensive on a typical invoice may still be the right pick if clients already trust the brand, your invoicing workflow is simpler, or payouts land when you need cash. The calculator answers “what does this charge cost?”, not “which company should you marry.”
Channel mismatch is a common mistake. Quoting “in-person” savings while you only sell through a website will understate real cost. Match the toggle to how the card is actually taken.
Marketplace fees are a different stack. If you sell on eBay, Etsy, or Mercari, platform commissions sit on top of (or instead of) a standalone processor. Compare those with the Marketplace Fee Comparison and the dedicated eBay, Etsy, and Mercari calculators. Amazon’s category referral model has its own tool: the Amazon Referral Fee Calculator.
A simple example
Suppose you usually invoice $500 online. Enter 500, leave the channel on Online, and read the ranked table. Note the fee dollars and what you keep for each processor. Then flip to In-person with the same $500 as if you took a card at a client meeting. The ranking or the gap may change. Finally, try $25 online: the fixed fee portion becomes more visible, and “effective rate” rises even when the published percentage looks unchanged. That pattern is why ticket size belongs in the comparison, not just the brand name on the checkout button.
None of those screens invent unpublished rates. They apply HustleNumbers’ verified table for the date stamped under the results. If a processor updates pricing, expect the stamp and numbers to move after the table is re-verified.
When the cheapest row is not enough
Before you switch processors based on one demo amount, walk through a month of real charges:
- Average ticket and the mix of small vs large payments
- Share of online vs in-person (or remote card entry)
- Refund and dispute frequency. Chargebacks have their own costs outside this tool.
- International buyers or multi-currency needs
- Whether you already rely on a processor’s invoicing, subscriptions, or POS hardware
If you are choosing between “take payments yourself” and “list on a marketplace,” run both worlds: processor comparison for direct sales, marketplace tools for platform listings. Net take-home after fees is the bridge between those decisions.
Next steps checklist
- Open the Payment Processor Comparison and enter your real average invoice or cart total.
- Toggle Online and In-person if you use both; screenshot or note the effective rates.
- Confirm current published pricing on Stripe, PayPal, and Square for your country and account type.
- If you also sell on marketplaces, compare platform take rates with the Marketplace Fee Comparison.
- Decide with fees and operations in mind. Payout timing, disputes, and client experience still matter.
Related tools on HustleNumbers
- Marketplace Fee Comparison: eBay vs Etsy vs Mercari net on the same sale.
- eBay Fee Calculator: category final-value and per-order fee estimates.
- Etsy Fee Calculator: listing, transaction, processing, and optional Offsite Ads.
- Amazon Referral Fee Calculator: category referral only (FBA excluded by design).
- Mercari Fee Calculator: selling fee and estimated net before you list.
Estimates only. This guide is educational and is not financial, tax, investment, or legal advice. Processor rates come from HustleNumbers’ verified tables and official published pricing; they change. Confirm live rates and plan terms with each processor before you rely on a number for business decisions.