An Online Brokerage Application That Ends With… Postal Mail?

A practical guide to employer fields, account types, margin trading, and the eKYC trap

Opening one brokerage account sounds simple.

Then the form turns into a surprise exam.

“Which tax account?” “Who is your current employer?” “What if you are between jobs but still officially employed?” “Cash equities or margin trading?” “Take a live photo or upload an image file?”

And after entering everything online, one final surprise can appear:

Wait for registered postal mail.

The application looked digital all the way through, but the final boss is the mail carrier.

This article reconstructs the confusing points from a real account-opening experience, with all personal details removed. The concrete service examined is Mitsubishi UFJ eSmart Securities as of October 2026, but the decision framework is useful for many financial onboarding flows.

0. The 30-second version

1. For an ordinary individual investor, start with the standard securities account.
2. If you want simpler tax administration, a specified account with withholding can be convenient, although tax filing may still be needed in some cases.
3. If you are using paid leave before resignation, you are still employed until the actual resignation date. Use the employer that is current on the application date.
4. If the form explicitly says the “type of transaction” answer does not affect available services, choose the option closest to your intended use.
5. Margin trading usually requires a separate application and screening.
6. Live smartphone eKYC and uploading image files are not the same identity-verification route.
7. Smartphone selfie eKYC can end with the account number being sent by email.
8. File upload can end with the account number and password being delivered by non-forwardable registered mail.
9. If you chose the wrong route, do not blindly submit a duplicate application. Ask support about the current processing status.
10. In the anonymized case behind this article, verification review had not yet been completed, so support allowed cancellation and a fresh smartphone eKYC application.

The key question is not:

“Did I apply online?”

It is:

“Which identity-verification route did I actually enter?”

1. Which account do you actually need?

Brokerage FAQ pages can present a wall of categories:

• securities account
• margin account
• futures and options
• U.S. stocks
• FX
• CFDs
• NISA
• specified tax account

It can look like a character-class selection screen in a game.

But you generally do not need everything at once.

For domestic stocks, the standard securities account is the base. If you later want short selling or margin trading, you apply separately for a margin account.

Mitsubishi UFJ eSmart Securities states that its kabu Station Professional plan includes conditions such as having a margin or futures/options account, and kabu Station API is one of the additional services available under that plan.^[1][2]

A simple mental model is:

standard securities account = the entrance margin account = an additional door for people who need it

Do not open every advanced product merely because one future feature sounds useful.

2. A specified account with withholding is convenient, not magical

A Japanese specified account lets the brokerage calculate annual trading gains and losses.

Mitsubishi UFJ eSmart Securities explains that with the withholding option, the brokerage calculates and pays the tax, so a tax return is generally unnecessary.^[3]

That can remove a great deal of administrative work.

But it is not a “never file taxes again” switch.

For example, offsetting gains and losses across brokerages or carrying forward losses can still create reasons to file a return.^[3]

Think of it as:

a major reduction in routine tax work, not a deletion of every tax decision.

3. Changing jobs soon? Enter today’s employer, not the future one

This field becomes unexpectedly confusing when someone is near a job change.

You may have stopped going to the office. You may be taking paid leave. Mentally, you may already be at the next employer.

But if the employment relationship has not ended on the application date, the current employer is still the current employer.

Paid leave is not resignation.

So the clean rule is:

enter the employer you actually belong to on the date of application.

After the job change becomes effective, update the brokerage registration.

Financial forms are usually easier when you use facts that are true today rather than facts that will become true soon.

4. What should you choose for “type of transaction”?

Some applications ask you to select one expected trading type, such as:

• cash equities
• margin equities
• bonds
• investment trusts
• foreign securities
• futures
• options
• FX
• other

If the screen explicitly says the choice does not affect which services you can actually use, it is not an unlock button.

Choosing “margin trading” does not itself create a margin account.

If margin trading or long/short strategies are your intended use, selecting “margin equities” can accurately describe your purpose. But the actual margin account still requires a separate application and screening.

Do not confuse a questionnaire answer with product eligibility.

5. The big trap: smartphone eKYC and image upload are both “online,” but they do not end the same way

This is the heart of the problem.

The brokerage offers more than one identity-verification path that can begin online.

A. Smartphone selfie eKYC

You use the smartphone camera to capture:

• an identity document
• your face

The official flow says the user sets an initial password and, once account opening is completed, receives the account number by email.^[4][5]

No need to wait for postal delivery.

B. Uploading image files

This also feels digital.

But when identity documents are submitted as uploaded image files, the official flow says the account-opening notice containing the account number and password is sent to the registered address.^[4]

It is sent by non-forwardable registered mail.

So:

the input is online, but the finish line is postal.

That distinction is easy to miss.

When eKYC was introduced, the company itself highlighted “no need to wait for postal mail” as one of its advantages.^[6]

That tells you the two routes are operationally different even if both begin in a web browser.

6. How to tell which route you are on

You do not need to memorize fintech vocabulary.

Look at what the application is actually asking you to do.

Signs of the eKYC route

• the smartphone camera opens
• you photograph the identity document live
• you photograph your face
• you create the initial password yourself
• the completion explanation says the account number will be sent by email

Signs of the file-upload route

• you select saved image files
• you upload those files
• there is no live face-capture step
• the completion explanation mentions registered or non-forwardable postal mail

The important lesson is:

using a smartphone does not automatically mean you used eKYC.

The process matters more than the device.

7. What if you already submitted the postal route?

In the anonymized case behind this article, the applicant finished the image-upload application and only then noticed the delivery method.

The reaction was essentially:

“Wait. I have to wait for a letter before I can log in?”

The applicant contacted support.

At that moment, the identity documents had not yet completed review. Support therefore explained that:

• the current application could be cancelled
• a fresh application could be made from a smartphone
• a warning about an existing similar application might appear, but in this specific case the applicant had been instructed to continue

That solved the problem.

But this must not be generalized into:

“Just submit duplicates whenever you dislike the delivery method.”

The answer can depend on processing status and internal workflow.

The safer sequence is:

1. confirm which route you used
2. tell support you want to switch to eKYC
3. ask whether the current application can be cancelled
4. submit again only when support confirms that you should

8. Reapplication checklist

When retrying with smartphone eKYC:

• open the application from a smartphone
• use a supported browser
• choose the live selfie / document-capture route
• make sure you are not merely uploading existing photo files
• confirm there is a face-capture step
• confirm there is a step where you set the initial password
• read the final screen and verify that the account number will be delivered by email

The final screen matters.

After filling in a long financial form, people naturally stop reading carefully once they see “application complete.”

But for identity verification, the completion screen is the route confirmation screen.

9. The UX lesson is bigger than brokerage accounts

This is not merely a story about a user overlooking a sentence.

From a UX perspective, the structure is interesting:

• both routes look like online applications
• both use identity documents
• one ends by email
• the other ends by postal mail
• the time-to-access can differ materially

The user does not really care whether the internal label is “eKYC.”

The user wants to know:

“If I choose this now, when and how will I receive the credentials I need?”

A clearer interface would present the consequence at the moment of choice:

• selfie verification: no postal wait / email notification
• image upload: registered mail required

Show outcomes, not just process names.

That is a general UX principle far beyond financial services.

10. Conclusion: ask whether the entire process is online, not whether the application starts online

“Online application” is too vague.

Is only the form online? Is identity verification online? Is the account approval online? Are the login credentials delivered online?

Unless you check the whole chain, the final screen can suddenly say:

“Please wait several business days for registered mail.”

A useful sequence is:

account type → tax setup → current employer → intended trading → identity-verification route → final delivery method

And if you discover too late that you entered the postal route, it may still be fixable depending on processing status.

But do not solve it by creating duplicate applications on your own.

Confirm the status first.

The simplest rule is:

Before you submit, check whether the end of this route is email or postal mail.

Do not let the mail carrier become the final boss of your “fully online” onboarding.

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References (6)

1. Mitsubishi UFJ eSmart Securities — kabu Station API kabu.com
2. Mitsubishi UFJ eSmart Securities — kabu Station service plans kabu.com
3. Mitsubishi UFJ eSmart Securities — Specified accounts kabu.com
4. Mitsubishi UFJ eSmart Securities — Account-opening flow kabu.com
5. Mitsubishi UFJ eSmart Securities — Open an account kabu.com
6. Mitsubishi UFJ eSmart Securities — eKYC announcement kabu.com