Thus Far vs So Far (2026): Clear Difference, Simple Rules, and Easy Examples

Many English learners feel confused when they hear phrases like “thus far” and “so far.” At first, they seem to mean the same thing.

In fact, both are often used to talk about something that has happened up to the present moment. Because of this, students sometimes use them in the wrong situations without even realizing it.

The confusion becomes stronger when you start reading books, watching movies, or listening to native speakers.

You might hear “so far” in everyday conversations, but “thus far” appears more in formal writing or speeches. This difference in tone is not always easy to understand, especially for beginners.

Still, learning the difference is very important. These small phrases can change how natural or professional your English sounds. If you use the wrong one, your sentence may feel strange or too formal for the situation.

By the end of this lesson, you will clearly understand what “thus far” and “so far” mean, how they are different, when to use each one, and how to avoid common mistakes.

You will also learn simple tricks and real-life examples to help you use them confidently in daily English.

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What Does “Thus Far” Mean?

“Thus far” means up to this point in time or until now. It is similar in meaning to “so far,” but it sounds more formal and is usually used in writing, reports, or serious speech.

When to Use It

You should use “thus far” when:

• You are writing something formal
• You want to sound professional or academic
• You are summarizing progress or results

It is not very common in casual conversation.

Grammar Rule

“Thus far” is an adverbial phrase. It usually comes at the end of a sentence, but it can also appear in the middle or beginning.

Examples

1. The results have been positive thus far.
2. We have not faced any major problems thus far.
3. Thus far, the project is going very well.
4. She has completed three chapters thus far.
5. The team has performed well thus far in the competition.
6. No serious issues have been reported thus far.
7. Thus far, everything is under control.
8. The research findings are promising thus far.

Common Learner Confusion

Many students try to use “thus far” in everyday speaking, like:

❌ I am enjoying the movie thus far.

While this is not wrong, it sounds too formal for casual talk. Native speakers would usually say “so far” instead.

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What Does “So Far” Mean?

“So far” also means up to now or until this moment. It is very common in everyday English and is used in both speaking and informal writing.

When to Use It

You should use “so far” when:

• You are talking in daily conversations
• You want natural, simple English
• You are describing progress or experiences

Grammar Rule

“So far” is also an adverbial phrase. It often appears at the end of a sentence, but it can also be placed at the beginning for emphasis.

Examples

1. I like this book so far.
2. Everything is going well so far.
3. So far, we haven’t had any problems.
4. The trip has been amazing so far.
5. I have saved some money so far.
6. So far, no one has complained.
7. He has scored two goals so far.
8. The weather has been nice so far.

Common Learner Confusion

Some learners think “so far” is too simple or not correct in formal writing.

❌ “So far” is not correct in reports.

This is not true. You can use “so far” in formal writing, but “thus far” sounds more formal and polished.

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Difference Between Thus Far and So Far (Detailed)

Both phrases share the same basic meaning, but their tone, usage, and context are different.

Comparison Table

Feature	Thus Far	So Far
Meaning	Until now	Until now
Tone	Formal	Neutral / Informal
Usage	Writing, reports	Speaking, everyday English
Frequency	Less common	Very common
Natural in speech	Rare	Very natural

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Usage Difference

• “Thus far” is used when you want to sound more serious or professional.
• “So far” is used in normal conversation and casual writing.

Example:

• The results are satisfactory thus far. (formal)
• The results are good so far. (natural and simple)

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Grammar Logic

Both phrases work as time expressions. They refer to something that started in the past and continues up to now.

They are often used with:

• Present perfect tense
• Present perfect continuous tense

Example:

• We have completed half the work so far.
• We have completed half the work thus far.

Both are correct, but the tone is different.

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Sentence Structure Difference

There is no big structural difference. However, placement can affect style.

• Thus far, the company has grown steadily.
• So far, the company has grown steadily.

Both are correct, but the first sounds more formal.

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Meaning Comparison

There is no difference in meaning. The difference is only in style and tone.

Think of it like this:

• “So far” = everyday English
• “Thus far” = formal English

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Grammar Rules You Must Remember

Rule #1: Use Present Perfect Tense

Both phrases are often used with present perfect tense.

✔ I have finished two chapters so far.
✔ She has done well thus far.

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Rule #2: Place at End or Beginning

You can place both phrases at the end or beginning of a sentence.

✔ So far, everything is fine.
✔ Everything is fine so far.

✔ Thus far, the results are clear.
✔ The results are clear thus far.

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Rule #3: Avoid Overusing “Thus Far” in Speech

“Thus far” sounds too formal in daily conversation.

❌ I am hungry thus far.
✔ I am hungry so far.

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Rule #4: Match the Tone of Your Writing

Use “thus far” in formal writing and “so far” in casual situations.

✔ The experiment has been successful thus far. (report)
✔ The experiment is going well so far. (conversation)

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Common Mistakes Students Make

1. Using “Thus Far” in Casual Conversation

Why it happens: Students want to sound advanced.

❌ I like this game thus far.
✔ I like this game so far.

Tip: Use “so far” when speaking.

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2. Thinking They Have Different Meanings

Why it happens: The words look very different.

❌ “Thus far” means something different from “so far.”
✔ Both mean the same thing.

Tip: Focus on tone, not meaning.

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3. Using with Wrong Tense

Why it happens: Lack of grammar practice.

❌ I finish my work so far.
✔ I have finished my work so far.

Tip: Use present perfect tense.

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4. Avoiding “Thus Far” Completely

Why it happens: Fear of making mistakes.

Tip: It’s okay to use “thus far” in writing. Just don’t use it too much in speaking.

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Easy Trick to Remember the Difference

Here is a simple trick:

👉 “So far” = Speak
👉 “Thus far” = Text (formal writing)

Think of “so” as simple and common.
Think of “thus” as serious and formal.

Real-life logic:

• When talking to a friend → use “so far”
• When writing a report → use “thus far”

This small trick can save you from many mistakes.

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Daily Life Examples (Very Important)

Here are real-life examples you can use in daily conversations:

1. The food is delicious so far.
2. So far, I am enjoying my new job.
3. Everything is going smoothly so far.
4. I haven’t had any issues so far.
5. So far, the teacher is very kind.
6. The movie is interesting so far.
7. I have learned a lot so far.
8. So far, the weather has been great.
9. I feel good about this plan so far.
10. So far, no one has disagreed.

Now compare with formal style:

• The results are acceptable thus far.
• Thus far, the company has met its goals.

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Practice Section

Choose the correct option:

1. I have read three pages ___ (so far / thus far).
2. ___, everything looks fine. (So far / Thus far)
3. The report has been accurate ___ (so far / thus far).
4. I like this song ___ (so far / thus far).
5. ___, the data shows positive results. (So far / Thus far)

Answers

1. so far
2. So far
3. thus far
4. so far
5. Thus far

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FAQs

1. What is the difference between thus far and so far?

Both mean “until now.” The main difference is tone. “So far” is common and informal, while “thus far” is more formal and used in writing or professional contexts.

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2. Can we use “thus far” in conversation?

Yes, but it is not common. It may sound too formal or unnatural in everyday speech. Native speakers usually prefer “so far” when speaking.

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3. Is “so far” correct in formal writing?

Yes, it is correct. However, “thus far” sounds more formal and is often preferred in academic or professional writing.

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4. Can both be used at the beginning of a sentence?

Yes, both can be used at the beginning.

Example:
So far, everything is good.
Thus far, everything is good.

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5. Which one is more common?

“So far” is much more common, especially in daily conversations and informal writing.

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6. Do they have different meanings?

No, they have the same meaning. The difference is only in style and level of formality.

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Final Conclusion

Understanding the difference between “thus far” and “so far” is easier than it first appears. Both phrases mean the same thing: “until now.” The real difference lies in how and where you use them.

“So far” is your everyday phrase. It is simple, natural, and perfect for speaking with friends, family, or coworkers. You will hear it often in daily conversations, movies, and casual writing.

“Thus far,” on the other hand, belongs to more formal situations. It is useful in reports, essays, or professional communication where a slightly serious tone is needed.

The key is not to worry too much about choosing the “perfect” word every time. Focus on the situation. If it feels casual, go with “so far.” If it feels formal, “thus far” is a good choice.

With practice, this choice will become automatic. Keep reading, listening, and using these phrases in real life. That is how fluency grows—step by step, word by word.