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Invoice Late Fee Calculator

Work out the late fee and total due on an overdue invoice from annual, monthly or flat charges, with grace period, minimum and cap.

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Invoice Late Fee Calculator is free to use as often as you like, directly from this page. Its place is under Pricing & margins; eBay Fee Calculator and Etsy Fee Calculator answer the questions closest to this one.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What is Invoice Late Fee Calculator?

Work out the late fee and total due on an overdue invoice from annual, monthly or flat charges, with grace period, minimum and cap.

When would I actually use this?

Setting a price that survives contact with reality: covering costs, hitting a target margin, and checking what the marketplace and payment fees leave behind.

What is the most common mistake?

Confusing margin with markup. A 50% markup is a 33% margin, and pricing as if they were the same undercharges by a third on every unit sold.

How is Invoice Late Fee Calculator different from eBay Fee Calculator?

They sit next to each other but answer different questions: eBay Fee Calculator is the one to open when you need it to compute eBay final value, fixed and promoted listing fees to see what you actually keep on a sale. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

Etsy Fee Calculator is the closest one after this: Break down Etsy listing, transaction, processing and offsite ads fees, with a target-margin price.

What else is worth having open alongside it?

Patent Filing Fee Calculator and PayPal Fee Calculator — they come up in the same task often enough to be worth a second tab.

Where do the figures come from?

Margin arithmetic is universal; the fee schedules are not. Marketplace and payment rates are read from published tariffs, which each provider revises on its own calendar — re-check them before pricing a new line.

Further reading

All guides →
GuideAn Unpaid Invoice: The Late-Payment Interest the Law Already Grants YouYou do not need a penalty clause. A European directive gives every business creditor a statutory interest rate and a fixed recovery sum, both due automatically, and a term in the contract trying to take them away is void or presumed unfair. Here are the current rates and what they produce on a real invoice.ExplainerA Quotation: What Commits You Legally, and What Must Appear On ItThe same document has opposite default effects on either side of the Rhine: in France a signed fixed-price quotation forbids any increase, in Germany an estimate carries no guarantee of correctness unless the contractor took one on. Plus the particulars that are general, the ones that are trade rules, and why a free quotation is not free.GuideInvoicing a Client in Another EU Country: VAT, the Reverse Charge and the One Stop ShopTwo regimes get merged into one paragraph everywhere, and they behave nothing alike. Selling a service to a business abroad and selling to a private customer abroad are governed by different articles, different thresholds and different filings. Here is the split, with the current figures.ExplainerHow Etsy Fees Work: The 6.5 Percent Is About a Third of the BillThe famous transaction fee is one of five layers. On a $40 item with $6 shipping, Etsy's order fees come to $4.62 — and $11.52 if the sale came through Offsite Ads.ExplainerHow eBay Fees Work: The Percentage Is Not on the Price You SeteBay charges its final value fee on the item plus the postage the buyer paid. A 13.6 percent rate on a $100 item with $10 shipping costs $15.36 — 15.4 percent of the price you actually set.ComparisonStripe vs PayPal Fees: What Each One Actually TakesOn a $100 domestic card sale the gap is $0.78. On the same sale from abroad with a currency conversion it is $2.78. The headline rate is the part that matters least.