Common Mistakes When Using ‘Because of This’ in a Sentence

The phrase “because of this” is a common connector in English, but it is often misused in ways that make writing sound awkward, vague, or overly informal. The main mistake is using it to start a new sentence when the cause-and-effect relationship is weak or unclear, or when a more precise word like “therefore,” “consequently,” or “as a result” would be better. This guide will show you exactly how to use “because of this” correctly, what to avoid, and how to choose stronger alternatives for academic and professional writing.

Quick Answer: When Is ‘Because of This’ Correct?

Use “because of this” when you want to show that one thing happened directly as a result of a specific cause mentioned just before. It works best in the middle of a sentence or at the beginning when the cause is clear and recent. Do not use it to start a paragraph or to refer to a vague idea from several sentences earlier.

Correct: The experiment failed because of this miscalculation in the data.
Incorrect: The company lost money last year. Because of this, we need to cut costs. (Too vague; what exactly caused the loss?)

Understanding the Core Meaning

“Because of this” points backward to a specific noun or situation. It is a prepositional phrase that explains the reason for an action or result. The key is that the cause must be clearly stated in the previous clause or sentence. If the reader has to guess what “this” refers to, the sentence becomes confusing.

Formal vs. Informal Tone

In casual conversation, “because of this” is fine. In academic writing, business emails, or formal reports, it can sound repetitive or weak. Stronger transition words like “consequently,” “hence,” or “therefore” are often preferred. However, “because of this” is not wrong in formal writing if the cause is specific and the sentence is well-structured.

Informal (conversation): I missed the bus. Because of this, I was late for work.
Formal (email): The shipment was delayed due to a customs error. Consequently, the client will receive the order on Friday instead of Wednesday.

Comparison Table: ‘Because of This’ vs. Alternatives

Natural Examples of ‘Because of This’

Here are examples where “because of this” sounds natural and clear. Notice how the cause is always a specific noun or situation mentioned in the previous sentence.

• The software update caused a system error. Because of this, all users were logged out automatically.
• She forgot to save her work before the computer crashed. Because of this, she had to rewrite the entire report.
• The bridge was closed for repairs. Because of this, we took a longer route to the airport.
• His visa application was incomplete. Because of this, the embassy rejected it.

Common Mistakes with ‘Because of This’

Mistake 1: Using It When the Cause Is Unclear

If “this” refers to a general idea or something mentioned many sentences ago, the reader gets lost. Always make sure the cause is in the immediate previous sentence.

Wrong: The company had a bad year. Several employees left. The market changed. Because of this, we need a new strategy. (What exactly caused the need? The bad year? The departures? The market?)
Better: The market changed dramatically last quarter. Because of this, we need a new strategy to remain competitive.

Mistake 2: Starting a Paragraph with ‘Because of This’

When you begin a new paragraph, the reader expects a new topic. Starting with “because of this” forces them to search for the cause in the previous paragraph, which is often too far away. Use a stronger transition or restate the cause.

Wrong: [End of paragraph] The budget was cut by 20%.
[New paragraph] Because of this, we cannot hire new staff this year.
Better: [End of paragraph] The budget was cut by 20%.
[New paragraph] This budget reduction means we cannot hire new staff this year.

Mistake 3: Overusing It in Academic Writing

In essays and research papers, repeating “because of this” sounds lazy. Use synonyms like “therefore,” “consequently,” or “thus” to vary your language and sound more professional.

Weak: The sample size was small. Because of this, the results are not reliable. Because of this, we need more data.
Strong: The sample size was small. Consequently, the results are not reliable. Therefore, we need to collect more data.

Mistake 4: Confusing ‘Because of This’ with ‘Because This’

Some learners drop the “of” and write “because this,” which changes the grammar. “Because this” starts a clause, not a phrase.

Wrong: The flight was delayed because this weather.
Correct: The flight was delayed because of this weather.
Also correct: The flight was delayed because this weather was dangerous. (Here “because” introduces a full clause.)

Better Alternatives to ‘Because of This’

Depending on your context, you can replace “because of this” with more precise or formal phrases. Here is a guide for different situations.

For Academic Essays

Use “therefore,” “consequently,” or “thus.” These words show logical reasoning and are standard in formal writing.

Example: The participants showed no improvement. Therefore, the treatment was deemed ineffective.

For Business Emails

Use “as a result,” “due to this,” or “for this reason.” These are professional but not overly stiff.

Example: The client requested a change in the deadline. As a result, we need to adjust the project timeline.

For Everyday Conversation

“Because of this” is fine, but you can also say “so” or “that’s why” for a more natural tone.

Example: I lost my keys. That’s why I was late.

When to Use ‘Because of This’

Keep “because of this” when the cause is a single, specific noun and you want a direct, simple connection. It works well in short explanations, instructions, or informal reports.

Example: The printer ran out of ink. Because of this, I could not print the documents.

Mini Practice: Test Your Understanding

Choose the best way to complete each sentence. Answers are below.

1. The server crashed during the update. __________, all saved data was lost.
a) Because of this
b) Because this
c) This is why

2. The study had a very small sample size. __________, the results cannot be generalized.
a) Because of this
b) Consequently
c) So that

3. She did not submit the assignment on time. __________, she received a zero.
a) Because of this
b) Because this
c) Due to

4. The weather was terrible. __________, the outdoor event was canceled.
a) Because of this
b) Therefore
c) Both a and b are acceptable

Answers: 1. a, 2. b, 3. a, 4. c

Frequently Asked Questions

1. Can I use ‘because of this’ at the beginning of a sentence?

Yes, but only if the cause is clearly stated in the previous sentence. Avoid using it to start a new paragraph or when the cause is far away.

2. Is ‘because of this’ formal or informal?

It is neutral. It works in most contexts, but for very formal academic or business writing, “therefore” or “consequently” are stronger choices.

3. What is the difference between ‘because of this’ and ‘due to this’?

They are very similar. “Due to this” is slightly more formal and is often used in written reports. “Because of this” is more common in speech and everyday writing.

4. Can I use ‘because of this’ in the middle of a sentence?

Yes. For example: “The project failed because of this budget cut.” This is often the clearest and most natural placement.

Final Advice for Learners

To use “because of this” well, always ask yourself: What exactly does “this” refer to? If the answer is a single, specific noun or situation from the previous sentence, you are safe. If you have to explain or guess, choose a different word. Practice by writing short cause-and-effect sentences in your own study notes or emails. Over time, you will develop a natural feel for when this phrase works and when it does not.

For more help with sentence structure and common errors, explore our Common Usage Mistakes section. You can also review Simple Sentence Examples to see how basic patterns work, or visit Daily English Sentences for everyday practice. If you have questions about our content, see our FAQ or contact us directly.