yatin wo harau kouza wo kaetai node, ginkou ni ikimasu.

Because they mark two different verbs:

• 家賃を払う = to pay rent
• 口座を変えたい = want to change the account

So the structure is:

• 家賃を払う modifies 口座
• then 口座を変えたい is the main idea before ので

In other words, the sentence contains a smaller verb phrase inside a bigger one:

• [家賃を払う] 口座 = the account used to pay rent
• その口座を変えたい = I want to change that account

So each を belongs to a different verb.

Yes. This is a very common Japanese pattern where a plain-form verb phrase directly modifies a noun.

• 家賃を払う = pay rent
• 口座 = account

Together:

• 家賃を払う口座 = the account from which I pay rent / the account used to pay rent

Japanese does not need words like that, which, or used to here. The verb phrase comes before the noun and modifies it directly.

Other examples of the same pattern:

• 日本語を勉強する学生 = a student who studies Japanese
• 昨日買った本 = the book I bought yesterday
• よく行く店 = the store I often go to

So 家賃を払う口座 is very natural Japanese.

変えたい is the -tai form, which expresses wanting to do something.

• 変える = to change
• 変えたい = want to change

So:

• 口座を変える = change the account
• 口座を変えたい = want to change the account

The -tai form is made from the verb stem:

• 変える → stem 変え → 変えたい

It behaves a lot like an i-adjective grammatically, which is why you can say things like:

• 変えたくない = do not want to change
• 変えたかった = wanted to change

Both ので and から can mean because, but the nuance is different.

• ので sounds a little softer, more explanatory, and more polite
• から can sound more direct, assertive, or personal

So:

• 変えたいので、銀行に行きます。 = Because I want to change it, I’m going to the bank.

This sounds natural when giving a reason in a calm, explanatory way.

If you used から:

• 変えたいから、銀行に行きます。

This is also grammatical, but it feels a bit more straightforward and conversational.

In many practical, polite situations—especially when explaining your reason to someone—ので is very common.

Because 行く normally takes に or へ to mark the destination.

• 銀行に行く = go to the bank
• 銀行へ行く = go to the bank

Both are possible, but:

• に often focuses more on the destination itself
• へ can feel a little more like toward

In everyday Japanese, に is extremely common with 行く.

So 銀行に行きます is just the standard way to say I’m going to the bank.

Japanese does not have a separate future tense like English. The non-past form can refer to:

• present habits
• near future
• general facts

So 銀行に行きます can naturally mean:

• I am going to the bank
• I will go to the bank

depending on context.

Here it refers to a future or planned action, and that is completely normal in Japanese.

If you wanted to stress intention more clearly, you could say:

• 銀行に行くつもりです = I intend to go to the bank

But that is not necessary here.

The subject is omitted, which is very common in Japanese.

From context, the understood subject is probably I:

• (私は) 家賃を払う口座を変えたいので、銀行に行きます。

Japanese often leaves out things that are already clear from the situation, especially:

• I
• you
• topics already mentioned

So even though 私は is not written, the sentence is still perfectly natural.

Yes, in this context 口座 means account, and it is naturally understood as a bank account.

By itself, 口座 can mean an account of some kind, but with:

• 家賃を払う
• 銀行に行きます

it is very clear that this is a bank account used for rent payments.

Depending on context, English might translate it as:

• account
• bank account
• the account I use to pay rent

They are similar, but not exactly the same in style.

• 家賃を払う口座 is a very natural verb-based expression
• 家賃の支払い口座 is more noun-based and sounds a bit more formal or technical

Compare:

• 家賃を払う口座 = the account used to pay rent
• 家賃の支払い口座 = the account for rent payment

The first one sounds very natural in ordinary speech. The second might appear in more formal writing, banking language, or documents.

Yes, but the nuance changes slightly.

• 払う is the everyday, common verb for pay
• 支払う is a bit more formal or businesslike

So:

• 家賃を払う口座 = natural everyday phrasing
• 家賃を支払う口座 = also correct, slightly more formal

In casual conversation, 払う is usually the more natural choice.

Because Japanese typically puts the reason before the result/action.

So the structure is:

• [Reason] ので、 [result/action]

Here:

• 家賃を払う口座を変えたいので = because I want to change the account used to pay rent
• 銀行に行きます = I’m going to the bank

This is a very standard Japanese sentence pattern.

English can also do this:

• Because I want to change the account I use to pay rent, I’m going to the bank.

But in Japanese, this order is especially common.

It is understandable and basically natural, but a native speaker might also say it in a slightly more specific way depending on the situation.

For example:

• 家賃の引き落とし口座を変えたいので、銀行に行きます。

This can sound even more precise if you mean:

• the account used for automatic rent withdrawal

Why?

• 引き落とし口座 = debit account / account for automatic withdrawal

If the rent is being automatically withdrawn from a bank account, this phrasing may be more exact than 家賃を払う口座.

Still, 家賃を払う口座を変えたいので、銀行に行きます is perfectly understandable and natural enough for a learner sentence.

The main statement is:

• 銀行に行きます = I’m going to the bank

Everything before ので gives the reason:

• 家賃を払う口座を変えたいので = because I want to change the account used to pay rent

So the core meaning is:

1. I want to change the account used for rent payment.
2. Because of that, I’m going to the bank.

This is useful to notice because in Japanese, the main verb often comes at the end of the sentence.