Both “thus far” and “so far” mean up to this point or until now, but they differ in tone and formality.
Quick Answer
- So far → common and conversational
- Thus far → formal and literary
👉 In short:
So far = everyday English
Thus far = formal English
What Does “So Far” Mean?
So far means until now or up to this point in time.
When to Use “So Far”
- Everyday conversation
- Casual writing
- Informal situations
Examples
- Everything is going well so far.
- So far, we have finished three chapters.
- I like the movie so far.
👉 It sounds natural and friendly.
What Does “Thus Far” Mean?
Thus far also means until now, but it sounds more formal, serious, or literary.
When to Use “Thus Far”
- Academic writing
- Reports or speeches
- Formal tone
Examples
- Thus far, the results are promising.
- The company has performed well thus far.
- No issues have appeared thus far.
👉 It sounds more polished and professional.
Thus Far vs So Far: Key Differences
| Feature | So Far | Thus Far |
|---|---|---|
| Meaning | Until now | Until now |
| Tone | Casual / conversational | Formal / literary |
| Usage | Everyday speech | Reports, formal writing |
| Commonality | Very common | Less common |
Simple Trick to Remember
👉 So far = simple talk ✔
👉 Thus far = formal style ✔
Common Mistakes to Avoid
1. Using “Thus Far” in Casual Chat
⚠️ It may sound too formal.
- Casual: Everything is good so far. ✔
- Very formal: Everything is good thus far. ✔ but uncommon
2. Thinking They Have Different Meanings
They mean almost the same thing.
3. Overusing Formal Language
Use “thus far” only when the tone fits.
Real-Life Examples
Casual
- So far, the trip has been amazing.
Formal
- Thus far, the investigation has found no evidence.
American vs British English
There is no major difference:
- Both phrases are used in US and UK English
- “So far” is more common everywhere
FAQs
What is the difference between thus far and so far?
The meaning is the same, but “thus far” is more formal.
Which is more common?
So far.
Which is better for formal writing?
Thus far.
Can they be interchangeable?
Usually, yes.
Is this a common confusion?
Yes.
Summary
- So far → casual and common
- Thus far → formal and professional
Final Thoughts
Both expressions mean “until now,” but choosing the right one depends on tone. Use “so far” for everyday English and “thus far” when you want a more formal or polished style.
Michael Brown is a contributor and author at BibliHub.com, where he produces insightful and research-oriented articles. He values depth, accuracy, and structure in his writing, ensuring that readers receive meaningful and well-supported information. Michael’s work is designed to inform, educate, and provide long-term value to readers interested in learning and exploration.
