Which Is Better for sole traders and small limited companies weighing FreeAgent bookkeeping against no-credit-check FSCS banking?
For sole traders and small limited companies choosing here, Zempler wins if the barrier is acceptance, cash deposits, or an overdraft. Mettle wins if you use FreeAgent, send more than a handful of payments a month, or want your balance to earn.
Zempler is the account for the declined. It holds a full banking licence, so you get the statutory FSCS guarantee and overdraft access without a credit search on your file. Few accounts open that door.
Mettle is the simpler case where credit isn’t the issue. NatWest plc underneath, FreeAgent bundled free, 0.95% AER on a savings pot up to £1m, and zero per-payment fees. For a consultant filing quarterly VAT through FreeAgent, that bundle is most of the product.
Here’s how to whittle it down. If a credit check is what’s stopping you elsewhere, or you need somewhere to bank physical notes, Zempler is built for exactly that. If your books already run on FreeAgent and you push plenty of supplier payments, Mettle wins on economics.
One caveat on Zempler’s fees. Above roughly 15 outgoing payments a month, the 35p charge starts to bite against Mettle’s zero. Zempler’s case rests on access, cash handling, and the overdraft, not on payment volume and not on interest.
Zempler vs Mettle Fees and Charges
Zempler’s tiers are Business Go at £0, Business Extra at £9, and Business Pro at £19 a month. Free payment allowances rise with the plan: 3 on Go, 20 on Extra, 500 on Pro, then 35p each. ATM withdrawals cost £2 in the UK, £3 abroad. Verified July 2026.
Mettle is about as close to free as business banking gets. £0 a month, £0 per payment, with a flat £1 the only charge when you draw cash at an ATM. The optional Mettle+ tier is £4 a month for extras.
For a sole trader running 80 payments a month and no ATM runs, the running cost is nothing.
We priced out the break-even ourselves. At 10 outgoing payments, Zempler costs £2.45 against Mettle’s £0. At 30, it’s £9.45 against zero. Mettle is cheaper on fees at any volume past your three free payments.
Cash is the one thing Zempler can do and Mettle cannot. You bank notes through the Post Office at 0.55% of the amount, minimum £4. Mettle has no cash channel at all. For a plumber banking a fifty on a Friday callout, that gap is the whole decision.
Watch out for how interest is sold here, because the headline is easy to misread. Neither account pays anything on the current-account balance itself.
Zempler’s 0.5% savings pot is locked to Business Pro at £19 a month, so you pay £228 a year for the privilege. Mettle’s pot pays 0.95% AER and costs nothing. On interest alone, Mettle wins twice over.
| Cost | Zempler Business Go | Zempler Extra (£9/mo) | Mettle |
|---|---|---|---|
| Monthly fee | £0 | £9 | £0 |
| Outgoing UK payment | 3 free, then 35p | 20 free, then 35p | £0 at any volume |
| ATM withdrawal | £2 (£3 abroad) | £2 (£3 abroad) | £1 |
| Cash deposit | 0.55% Post Office (£4 min) | 0.55% Post Office (£4 min) | Not available |
| Credit check to open | None | None | Standard checks (not confirmed as credit check) |
| Interest on current account balance | None | None | None |
| Savings pot | None (Business Pro only, 0.5%) | None (Business Pro only, 0.5%) | 0.95% AER up to £1m |
| FreeAgent included | No (via Open Banking) | No (via Open Banking) | Yes (1+ tx/mo) |
| Overdraft | On application | On application | None |
| FSCS protection | £120k on own licence | £120k on own licence | £120k via NatWest licence (shared) |
| Representative costs verified from provider websites, July 2026. | |||
Zempler vs Mettle Features and Tools
Past pricing, the two split on what they do for you on a working Tuesday. Zempler leans on banking substance: an overdraft, a Post Office cash channel, FSCS on its own licence. Mettle leans on software: FreeAgent bundled, a better-paying savings pot, tighter accounting feeds.
Mettle’s headline is FreeAgent, included free for any account making one transaction a month. That’s rolling tax estimates, VAT returns that meet Making Tax Digital (MTD) rules, self-assessment filing, full bookkeeping. Standalone it’s £14.50 a month, so you keep about £150 a year.
Mettle also gives you a savings pot at 0.95% AER up to £1m, instant-access. Ring-fence your VAT or Corporation Tax there between returns and it earns while it sits.
Zempler has a pot too, but it pays 0.5% and it is walled behind Business Pro at £19 a month, so Mettle pays nearly double for nothing.
Zempler’s answer is the banking itself. You can apply for an overdraft and get an instant decision, you can bank cash over a Post Office counter, and the FSCS guarantee sits on its own PRA licence.
For working-capital flexibility, that overdraft route matters. Mettle has no overdraft at all.
On accounting software, both connect to Xero and QuickBooks. We verified that Zempler adds Sage, but over Open Banking rather than a native feed, so the link can drop and need reconnecting. Mettle skips Sage entirely and builds around FreeAgent.
One structural limit on Mettle. It caps at sole traders or limited companies with up to two owners, one user per account, and no staff cards. Zempler’s public materials don’t confirm team-card issuance either, so verify before you rely on it.
Zempler vs Mettle International Payments
Neither account is built for cross-border trading, and both are honest about it. If you invoice in euros or pay dollar suppliers each month, you’re on the wrong page. Wise, Revolut, or Airwallex solve that properly.
Mettle is the firmer no. It has no IBAN and sends no international bank transfers at all. You cannot receive a foreign-currency payment into the account either, so an inbound euro transfer would simply bounce.
The Mettle Mastercard does work abroad. Card spending in a foreign currency carries a 0% non-sterling fee at the Mastercard rate. That covers a supplier trip, but it can’t send money to an overseas account.
Zempler is domestic-first too. Card spending abroad is fee-free on Business Extra and Business Pro, but the free Business Go plan stings you with a non-sterling fee. Its international bank-transfer support isn’t confirmed from primary sources, so verify before you rely on it.
If foreign payments are a real part of your business, we’d run Zempler or Mettle as the GBP account and a specialist like Wise alongside for currency flows. Two accounts beat one doing a job it wasn’t built for.
Zempler vs Mettle Customer Reviews and Reputation
When we last checked, Mettle sat at 4.7 stars on Trustpilot across about 6,000 reviews, and 4.92 on Smart Money People across roughly 4,000. Zempler sits around 4 stars. Mettle scores higher on the raw numbers.
The gap matters less than it looks, because the audiences differ. Zempler pulls in businesses turned down elsewhere, so its praise skews toward gratitude for access rather than delight at features. That’s a different signal from Mettle’s.
Mettle’s positive themes cluster on the FreeAgent integration, ease of use, and the savings pot. Negative reviews are thinner, but they mention occasional support delays and the flat absence of any cash-deposit option.
Zempler’s reviewers value the no-credit-check open and the FSCS protection most, and a fair number single out getting a real person on the phone. The complaints still land on support speed: the line keeps office hours, so a Friday-evening payroll snag waits on in-app chat until Saturday.
Don’t let the score gap alone decide it. Mettle scores higher because it serves a narrower, more satisfied audience. Zempler serves people who couldn’t get an account at all, and that’s a harder crowd to please.
Zempler vs Mettle for No-Credit-Check Banking and Credit Building
This is Zempler’s structural edge. It runs no credit check to open, and it says so plainly: CCJs, defaults, and thin credit history don’t block acceptance. For a business the high street keeps knocking back over a bruised credit file, that’s the whole proposition.
The important part is what you get alongside the open door. This isn’t a stripped-down second-chance wallet. It’s a full PRA-licensed bank account with the statutory FSCS guarantee, a Post Office cash channel, and overdraft access with an instant decision.
That combination carries real weight. If your business has just registered and has no trading record, you can still hold your first supplier invoices and VAT reserve under FSCS protection from day one. Zempler opens the door a credit check would slam shut.
Mettle sits on the other side of this factor. We read its eligibility criteria line by line: they don’t advertise a credit check, but Mettle isn’t positioned as a declined-elsewhere solution the way Zempler is. Without a primary source, we won’t claim it needs one.
So the split is clean. If a credit check is the blocker elsewhere, Zempler is built for exactly that. If it isn’t, this factor favours neither, and the decision reverts to fees and FreeAgent.
Downsides of Zempler and Mettle
Start with Zempler’s fees. On Business Go those 3 free payments run out fast, and 35p a go after that is a drip charge that nags. At 30 outgoing payments you’re £9.45 down against £0 on Mettle. For high-volume payers, that’s the weak spot.
Zempler’s phone line is a genuine plus, but it keeps office hours: 8am to 6pm on weekdays, 8am to 4pm Saturday, nothing on Sunday. A supplier payment that stalls late on a Friday leaves you on in-app chat until the lines reopen. Worth knowing before you switch your main account.
Its accounting feeds run over Open Banking, not native connections. That authorisation expires periodically, and when it lapses the Xero or Sage sync stops until you log back in. A small recurring chore rather than a dealbreaker.
Mettle’s biggest gap is cash. No Post Office, no PayPoint, no branch deposits, nowhere for physical notes to go. For any business with regular cash receipts, that rules it out on its own.
Mettle also caps hard on structure. Sole trader or limited company only, up to two owners, one user, no employee cards. Add a third director or a staff member who needs a card and you’ve hit the ceiling before features even come into it.
One more on Mettle’s FSCS, and it’s easy to miss. That £120,000 isn’t yours alone: it’s shared across the NatWest group, NatWest, NatWest Premier, Ulster Bank, NatWest Boxed, and Mettle combined. Hold another and the limit spans the lot. Zempler’s sits alone on its own licence.
Alternatives to Zempler and Mettle
Zempler and Mettle aren’t the only options. Here are the three alternatives we’d weigh first, depending on whether your priority is free payments, invoicing, or savings:
- Starling Business, PRA-licensed since 2018, FSCS-protected, zero domestic transfer fees at any volume, and overdraft on application. Pick this if you want the free-banking benchmark with FSCS cover and no ownership cap, but you don’t need Zempler’s no-credit-check open.
- Tide, built-in invoicing plus FreeAgent, Xero, and Sage integrations inside the app. Pick this over Mettle if invoicing sits at the centre of your day and your bookkeeper runs Sage. Note Tide is e-money safeguarded via ClearBank, not FSCS on its own licence.
- Allica Bank, FSCS-protected with competitive business savings rates and relationship managers. Pick this if you’re an established SME holding significant cash and want the balance working harder than a challenger current account allows.
Final Verdict: Zempler or Mettle?
Zempler wins if acceptance, cash deposits, or an overdraft is what you need. Mettle wins for FreeAgent users, anyone sending more than a handful of payments a month, and anyone who wants their balance to earn. The decision splits on credit access, cash handling, FreeAgent, and payment volume.
Choose Zempler if a credit check is stopping you elsewhere. It opens without one, on a full banking licence, with the statutory FSCS guarantee from day one. If you’ve been turned down, this is the account built for exactly that.
Choose Zempler if you need an overdraft route. It offers one with an instant decision, subject to eligibility; Mettle has none at all. For a business riding out a late-paying customer, that facility is the difference between a bridged month and a bounced direct debit.
Or choose Zempler if you bank cash. The Post Office channel at 0.55% is the only route in this matchup. Mettle has none. For a trades business or market trader banking notes each week, that fact alone decides it.
Choose Mettle if you use or want FreeAgent. It’s bundled free with any active account, the full product rather than a cut-down version. That’s about £150 a year you keep, and a tax workflow you don’t rebuild every quarter. The FreeAgent bundle pays for itself.
Choose Mettle if you send more than a handful of payments a month. It charges nothing per payment, ever, at any volume. For a small builder pushing thirty supplier payments on the 28th, the zero-fee structure beats Zempler’s 35p every time.
Or choose Mettle if you want your money to earn while it waits. Its pot pays 0.95% AER up to £1m, instant-access, walled off from the current account, and it costs nothing.
That is handy for setting aside VAT and Corporation Tax as you earn it. Zempler’s pot pays 0.5% and only on the £19-a-month Pro plan, so Mettle beats it on the rate and on the fee.
Frequently Asked Questions
Is Zempler Bank FSCS-protected?
Yes. Zempler Bank (formerly Cashplus) holds a full UK banking licence, taken in 2021, and is regulated by the PRA and FCA. Eligible deposits are protected by the Financial Services Compensation Scheme up to £120,000 per eligible depositor.
The useful detail here is that Zempler’s cover sits directly on its own banking licence, not shared with any other brand. That’s the statutory deposit guarantee, the same class of protection as a high-street bank. We confirmed the licence and FSCS status against Zempler’s published terms in July 2026.
Is Mettle FSCS-protected?
Yes. Mettle is a National Westminster Bank plc account (FCA FRN 121878, PRA-authorised). FSCS cover up to £120,000 per eligible depositor applies through the NatWest banking licence.
One thing to know: the £120,000 limit is shared across the NatWest group, NatWest, NatWest Premier, Ulster Bank, NatWest Boxed, and Mettle combined. If you hold accounts at any of those brands alongside Mettle, the cover applies to the combined balance, not £120,000 per brand. Zempler’s FSCS pool, by contrast, sits alone on its own licence.
Does Zempler run a credit check to open an account?
No. Zempler runs no credit check as part of the application. CCJs, previous defaults, and a thin or damaged credit file don’t block acceptance, which is structurally unusual for an FSCS-protected bank. We confirmed the no-credit-check open from Zempler’s published eligibility pages in July 2026. It’s the feature that makes Zempler useful for newly registered businesses, or businesses declined elsewhere, that still want a full bank account with the statutory FSCS guarantee. Verify current eligibility at zemplerbank.com before applying, as criteria can change.
Does Mettle charge per transaction?
No. Mettle charges nothing per payment at any volume: no fee for outgoing UK faster payments, incoming payments, standing orders, or direct debits. The optional Mettle+ tier is £4 a month for extras, but the core account stays free on transactions. Zempler works differently: on the free Business Go plan you get 3 free outgoing payments a month, then 35p each. At 30 payments a month that’s £9.45 against Mettle’s zero, so above roughly 15 payments Mettle is cheaper on fees alone.
Can you deposit cash with Zempler or Mettle?
Zempler yes, Mettle no. Zempler lets you bank cash through the Post Office at 0.55% of the amount, with a £4 minimum. Mettle has no cash deposit channel at all, no Post Office, no PayPoint, no branch deposits. If you regularly take physical notes, a plumber banking a fifty on a Friday or a market trader banking Monday takings, Zempler is the only option in this matchup, and that one fact often decides the page.
Is FreeAgent really free with Mettle?
Yes. Mettle includes FreeAgent free for any account making at least one transaction a month, and it’s the full FreeAgent product: rolling tax estimates, MTD-compatible VAT returns, self-assessment filing, full bookkeeping. Standalone FreeAgent is £14.50 a month, about £150 a year, so the bundle is a real saving. Zempler connects to Xero, QuickBooks, and Sage over Open Banking, but it doesn’t bundle a FreeAgent subscription. If FreeAgent is central to your books, Mettle is the cheaper route by a clear margin.
Can I have both Zempler and Mettle at the same time?
Yes. There’s no restriction on holding accounts with more than one business banking provider. A workable dual setup is Mettle as the primary account for FreeAgent, zero-fee payments, and the savings pot, with Zempler alongside for cash deposits and the overdraft option Mettle doesn’t offer. Both are free to open on their base plans, so there’s no cost to running both until you decide which fits your main workflow.
How we reviewed Zempler vs Mettle
Ranking criteria. We compared Zempler and Mettle on pricing, fees, feature set, eligibility, and contract terms. We also verified regulatory status and how FSCS deposit protection reaches each account.
Data sources. We ran the numbers a sole trader actually hits: the per-payment break-even, the Post Office cash cost, and the FreeAgent bundle. Pricing, eligibility, and both FSCS routes were checked against primary sources and the FCA register in July 2026.
Update cadence. We re-verify every provider on this page at least monthly, and whenever pricing, eligibility, or terms change. The verification date reflects the most recent full review. Some links here are affiliate links, including Zempler, see our editorial policy.