Mercury vs Wise for a Non-Resident US LLC (2026)
Non-resident founders almost always ask "Mercury or Wise" as if it's an either/or choice, but the smarter question is what each one is actually good for and in what order to open them.
Why this comparison keeps coming up
Once your US LLC has an EIN, the next step is a business bank account, and Mercury and Wise Business are the two names every non-resident founder finds first. Both let you apply remotely with no US visit, no SSN, and no US address of your own required. Both are used constantly by European founders running SaaS, agencies, ecommerce, and consulting businesses through US LLCs. But they are not interchangeable, and treating them as competitors misses the point that most serious non-resident founders end up using both, just for different jobs.
What Mercury actually is
Mercury is a US business banking platform (deposits held via partner banks, not a bank itself) built specifically for startups and online businesses. For non-residents, its strengths are:
- A genuine US bank account with routing and account numbers, useful for Stripe, Amazon, and US payment processors that want to see a real US bank.
- Free USD wires in many cases, and a debit/credit card program (Mercury IO) with some cashback perks for qualifying accounts.
- A cleaner fit if you plan to raise funding, since Mercury is well known in the US startup ecosystem and integrates with tools like QuickBooks and Bill.com.
The tradeoff is approval. Mercury has tightened underwriting over the past couple of years and is selective about industries and countries. Some non-resident founders get approved in a day, others get asked for extra documentation or are declined outright with limited explanation. There is no guaranteed acceptance.
What Wise Business actually is
Wise Business is not a US bank. It's a global payments account that gives you US account details (along with GBP, EUR, and other currency details) alongside its core strength, which is currency conversion. For non-residents, Wise tends to win on:
- Approval consistency. Wise has processed non-resident and cross-border business applications for years and is generally more predictable for solo founders and small teams than Mercury.
- FX cost. If you're invoicing in USD but living and spending in EUR or GBP, Wise's exchange rates are close to the real mid-market rate with a transparent percentage fee, which usually beats what a bank spread would cost you.
- Multi-currency simplicity. You get one account that can hold and send in dozens of currencies without opening separate accounts per country.
The tradeoff is that Wise is not a full US bank account in the traditional sense, some US platforms and processors are pickier about accepts details from Wise versus Mercury, and its card and credit-building features are more limited than Mercury's.
Side-by-side comparison
| Factor | Mercury | Wise Business |
|---|---|---|
| Account type | US bank account via partner banks | Global multi-currency account with US details |
| Non-resident approval | Selective, can decline without much explanation | Generally more consistent for non-residents |
| USD wires | Often free domestically, good for US-side payments | Fee applies, usually low and transparent |
| FX to EUR/GBP | Not its strength, limited currency conversion tools | Near mid-market rate, main selling point |
| Card program | Debit and credit-style cards, some cashback | Debit card, fewer perks |
| Startup ecosystem fit | Strong, recognized by investors and US SaaS tools | Less relevant unless you're fundraising |
| Best for | US-facing operations, Stripe/Amazon payouts, building US financial history | Getting paid internationally and converting currency cheaply |
So which one should you actually open first
If you can only get one, apply for Mercury first, since it gives you the more "bank-like" US presence that platforms like Stripe, Amazon, and US clients expect to see. If Mercury declines you or you need a working account faster, Wise Business is the reliable fallback, and plenty of founders use it as their primary account with no issues at all.
If your business genuinely spends most of its life converting USD revenue into euros or pounds for personal use, Wise's FX pricing alone can justify holding it permanently, even if you also keep Mercury open for US-side transactions. Many founders end up running both in parallel: Mercury for US invoicing, payment processor payouts, and card spend, Wise for cheap international transfers and holding multiple currencies at once.
Where non-residents actually get stuck
The account choice is rarely the hard part. What trips up non-resident founders is the sequencing before it: getting the LLC formed correctly (Wyoming is a common low-cost default for a single-member LLC with no local tax exposure of its own), getting an EIN from the IRS without a US Social Security Number (the SS-4 fax route works for non-residents but takes patience), and, if you need one personally, applying for an ITIN, which does not require a US visa or immigration status. Only once those pieces exist can you actually open Mercury or Wise in the LLC's name rather than your own.
It's also worth remembering that opening a US bank account does not remove your US tax filing obligations. A foreign-owned single-member LLC must file Form 5472 along with a pro-forma Form 1120 every year, even if the company had zero income or activity. Form 5472 is purely informational, it reports transactions between the LLC and its foreign owner, and it does not calculate any tax owed on its own. Skipping it is expensive: the IRS penalty starts at $25,000 for a late or missing filing, regardless of how small the business is.
This is the part of the process Founders Credit handles end to end for European founders: LLC formation, EIN, ITIN if needed, and remote setup of Mercury or Wise (or both), done-for-you and 100% remote, so you're not guessing at forms while trying to also compare bank features.
Practical takeaway
Don't think of Mercury vs Wise as a single decision you make once. Think of it as two different tools solving two different problems: Mercury for looking and operating like a US business, Wise for moving money cheaply across borders. Most non-resident founders who scale past their first year end up with both, and the ones who start with the right entity paperwork in place have a far easier time getting approved by either.
Frequently asked questions
Can a non-resident open Mercury or Wise without visiting the US?
Yes, both platforms are designed for remote onboarding and routinely approve non-resident founders with no US visit required.
Does Mercury require an SSN or ITIN to apply?
No, Mercury accepts an EIN and passport for non-resident LLC owners, though additional verification is sometimes requested during underwriting.
Is Wise Business a real bank account?
Not exactly. It's a regulated payments account that provides US account and routing details, which most platforms accept, but it isn't a chartered bank account in the traditional sense.
Do I still need to file US taxes if I only use Wise and never open Mercury?
Yes. Your filing obligations, including Form 5472 and a pro-forma 1120 for a foreign-owned single-member LLC, are tied to the LLC's existence, not to which bank account you use.
What happens if my Mercury application gets declined?
Many non-resident founders simply apply to Wise Business instead, or reapply to Mercury later with cleaner documentation once the LLC has more operating history.
Want this done for you?
Founders Credit sets up your US LLC, ITIN, banking and credit cards end to end, 100% remote. Skip the guesswork.
Book a free strategy call →