The short version: Square Online's free plan has no subscription, and it charges 3.3% plus 30 cents on online card payments. Square's paid plans charge 2.9% plus 30 cents for the same transaction. That 0.4% difference is what the free plan actually costs you, and it scales with every sale you make. Square Plus is $49 a month per location and Premium is $149 per location, both with a 30-day trial and lower in-person rates too. The free plan is genuinely the right choice at low online volume. Past roughly $12,250 a month in online sales, the rate difference alone covers the Plus subscription. Between those two points, you are paying a premium for a plan that advertises itself as free.
All figures came off Square's own pricing and payment-fee pages in July 2026.
Nothing monthly, and more per transaction. Those are the two halves of the same deal.
Square publishes its processing rates by plan, and the online rate is the one that moves:
| Plan | Monthly | Online card rate | In-person card rate |
|---|---|---|---|
| Square Free | $0 per location | 3.3% + 30¢ | 2.6% + 15¢ |
| Square Plus | $49 per location | 2.9% + 30¢ | 2.5% + 15¢ |
| Square Premium | $149 per location | 2.9% + 30¢ | 2.4% + 15¢ |
Two things to notice. The online gap between Free and Plus is 0.4 percentage points. The in-person gap is smaller, a tenth of a point plus the same 15 cents. And Premium buys no further online discount over Plus, only better in-person rates and 24/7 support.
So the free plan is not a stripped-down version of the paid one that costs you features. It is the same checkout at a higher rate.
That rate difference is the entire cost of "free," and the break-even against a paid plan is worked through below. The same comparison against a flat $10/mo storefront is worth running while you are at it, since the free plan is only cheap below a specific monthly volume.
Two different break-evens, and mixing them up is how people get this wrong.
Against Square Plus. The question is when 0.4% of your online sales exceeds $49 a month. That is at $12,250 a month in online sales. Below that, Free is cheaper than Plus even though Plus has the better rate. Above it, you are paying Square extra for the privilege of not subscribing.
Against a flat-fee storefront elsewhere. If another platform charges $10 a month at 2.9% plus 30 cents, the question is when 0.4% exceeds $10. That is at $2,500 a month in online sales, which a great many vendors clear.
Worked at three volumes, using a $20 average order and online sales only:
That is a long runway, and it is why Square's free plan is a genuinely good deal for a small seller rather than a trap. The trap is only in the word "free," which suggests a cost of zero rather than a cost you cannot see.
Because percentages compound against you in exactly the months you are doing well.
None of those figures ever appears as a line on a bill. There is no invoice that says "free plan surcharge." It arrives as a slightly smaller deposit, every single day, which is the hardest kind of cost to notice and the easiest kind to carry for years.
This is worth understanding structurally rather than just accepting. Card processing rates are built on interchange, the wholesale cost a processor pays the card networks on every transaction, plus network assessments, plus the processor's own margin. The Federal Trade Commission's resources for small businesses cover the broader set of costs and obligations a small operator carries, and payment acceptance is one of the few that is charged as a share of revenue rather than as a fixed bill. That is precisely why it deserves more attention than its size suggests: a fixed cost is a decision you make once, and a percentage is a decision that keeps charging you.
The general principle is worth holding on to beyond Square: a free plan is usually not free, it is priced differently. Sometimes that pricing is better for you. It is worth finding out which, rather than assuming that no subscription means no cost.
You see the same structure across the category once you know to look for it. One platform charges no subscription and takes a percentage of every order at checkout. Another charges a low monthly price and adds a store transaction fee on top of processing. A third publishes a cheap entry tier and puts the features you need one tier up. None of that is dishonest, and in every case the numbers are on the page. But the headline price and the actual cost are different quantities, and only one of them is designed to be memorable. Our comparison of Homegrown against Hotplate works through the no-subscription version of this trade, where the fee lands on your customer rather than on you.
One number, applied consistently: what does this cost me per month at my actual volume? Not the headline, not the rate, the monthly total.
That exercise takes about ten minutes with a calculator and it settles arguments that people otherwise have with themselves for months. It also produces a number you can re-run next year, which matters more than getting it exactly right today.
The rate is the main thing, but not the only thing. Moving from Free to Plus also adds:
If any of those matter to you, the $49 is buying more than a rate reduction and the break-even calculation above is the wrong question. Price the features you need, then treat the rate difference as a discount on top.
Only slightly, and this is where Square's free plan is genuinely excellent.
The in-person rate on Square Free is 2.6% plus 15 cents, which is one of the best card-present rates available to a small business anywhere. Plus improves it to 2.5% plus 15 cents and Premium to 2.4%, but those are tenths of a point rather than the 0.4 the online rate moves.
So a vendor whose sales are mostly taps at a market booth is barely affected by any of this. If you take $4,000 a month at a booth and $500 online, the free plan is costing you $2 a month and you should stop thinking about it.
Split your sales before you calculate anything. Card-present and card-not-present are priced differently and the free plan's penalty only applies to the online half. Vendors who run the sum on total revenue reach the wrong answer, usually in the direction of upgrading a plan they did not need.
Most vendors who run this properly find the free plan is still correct, and that is a fine outcome. The point of the exercise is not to talk you into a subscription, it is to make sure you know what you are paying rather than assuming it is nothing. A vendor who has consciously decided to accept 0.4% because their online volume is small is in a completely different position from one who believes the plan is free, even though they are on the same plan paying the same amount. The first will notice when their online share grows. The second will not.
Step five is the one that catches market vendors. Per-location pricing means a seller at three Saturday markets who wants them tracked separately is looking at a very different number from the $49 headline, and that is worth pricing against your real setup rather than a single-location example.
Because the $2,500 break-even is so much lower than the $12,250 one, this is the comparison most small vendors are really making.
At $4,000 a month across 200 online orders:
That is only $6 a month, or $72 a year, which is not a reason to move anything on its own. What is worth pricing alongside it is what each one does: whether sales tax gets filed for you, whether pickup can be scheduled at more than one location, whether local delivery has a route, and whether you pay per location. Our full comparison of Homegrown against Square Online works that through, and our roundup of the best e-commerce platforms for local vendors covers the wider field.
The IRS treats all of these as ordinary business expenses either way, and its guidance on recordkeeping for small businesses is worth reading on keeping processing fees itemized, which is the only way you will be able to run this calculation on your own numbers next year.
The plan is free to have. It is not free to use. Square Free charges 3.3% plus 30 cents on online card payments against 2.9% plus 30 cents on its paid plans. That 0.4% difference is the cost of the free plan, and it scales with your sales.
0.4% of your online sales. At $1,000 a month that is $4. At $5,000 a month it is $20, or $240 a year. At $10,000 a month it is $480 a year.
On rate alone, at about $12,250 a month in online sales, where the 0.4% saving covers the $49 subscription. Before that, upgrade only if you need what else is on the plan: loyalty, email and text marketing, staff management, or the advanced point-of-sale features.
Barely. Square Free charges 2.6% plus 15 cents in person against 2.5% on Plus, a tenth of a point. If most of your sales happen at a booth, the free plan costs you almost nothing.
Yes. Square Plus is $49 a month per location and Premium is $149 per location. If you sell at several markets and want them tracked separately, multiply accordingly before comparing anything.
It is a straightforward pricing choice rather than anything underhanded, and Square publishes both rates openly. Free plans have to be paid for somewhere, and a slightly higher transaction rate is a common way to do it. The rate is on their public fee page, so it is disclosed rather than hidden.
Under about $12,250 a month in online sales, the free plan, despite the higher rate. Above that, Square Plus. If you are also weighing platforms outside Square, the relevant break-even against a $10 flat-fee storefront is much lower, at around $2,500 a month.
Square Online's free plan is a good product and, for most small vendors, the correct choice. The 0.4% online surcharge takes a long time to add up to $49 a month, and the in-person rates are excellent throughout.
What it is not, is free. It is a plan with the cost moved from a subscription line onto every transaction, which means you pay most when you are selling most and you never see it itemized. Run the one calculation that matters, your online sales times 0.4%, and you will know within a minute whether the free plan is saving you money or quietly costing you a few hundred a year. If the number is uncomfortable and you are also tired of filing your own sales tax, it is worth seeing what a flat-fee storefront does with the same orders before you upgrade anything.
