Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
pay at once
Grammar usage guide and real-world examplesUSAGE SUMMARY
"Pay at once" is a correct and usable part of a sentence in written English.
You can use it to tell someone to do something immediately. For example, "You must pay at once if you want to take advantage of this special offer."
✓ Grammatically correct
News & Media
Wiki
Science & Research
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
1 human-written examples
"Everybody talks at once; everybody orders at once; everybody eats at once; and everybody seems anxious to pay at once" is how a New York observer described the scene in 1868.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
On June 30th the European Union's member states and parliament proposed limits to the share of bonuses paid at once and in cash.
News & Media
"We want them to pay everyone at once.
News & Media
"It is clear that the revenues and expenses for companies and regular people would be affected immediately if they were to have to pay all at once," explained Ricardo Obregón, president of Bavaria, which figures it will owe the government $13 million.
News & Media
Part-time employment has obvious advantages for a freelancer, providing a necessary financial "cushion" for those (fortunately rare) occasions when all my clients forget to pay me at once.
Science & Research
Ideally, he told me, you'd have one app that brings rail, bus, car-share and bike-share data into one place and lets you plan a whole trip on multiple modes and pay all at once.
News & Media
For example, I recently had to pay $550 at once for the pre-college course created for non-German speakers.
News & Media
For example, I recently had to pay €470 (£417) at once for the pre-university course created for non-German speakers.
News & Media
Many orthodontists offer payment plans to help you afford braces if you can't pay everything at once.
Wiki
Consider how much you can pay all at once (in a lump sum) and how much you could afford in monthly installments.
Wiki
Parma met these deadlines, paying the team with three monthly pay-cheques at once.
News & Media
Expert writing Tips
Best practice
When using "pay at once" in your writing, make sure the context clearly indicates the urgency or necessity of immediate payment. This phrase is most effective when there is a specific reason for prompt action, such as taking advantage of a discount or avoiding a penalty.
Common error
Avoid using "pay at once" in situations where there is no real need for immediate payment. Overusing this phrase can create unnecessary pressure and may be perceived as demanding or aggressive. Consider alternatives like "pay promptly" or "pay soon" when the situation is less urgent.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "pay at once" is to act as a directive, urging immediate action. As Ludwig AI confirms, it is a correct and usable part of a sentence. The phrase directly commands the act of payment without any delay.
Frequent in
News & Media
39%
Wiki
21%
Science & Research
7%
Less common in
Formal & Business
5%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "pay at once" functions as a direct command to make an immediate payment, as supported by Ludwig AI's analysis. It’s grammatically sound and widely used across various contexts, including news, general instructions, and everyday communications. The phrase is most effective when there is a specific reason to take prompt action, such as taking advantage of a discount or avoiding a penalty. When considering alternatives, phrases like "pay immediately" or "settle payment now" can be used depending on the level of formality.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
pay immediately
Replaces "at once" with its direct synonym, focusing on the timing of the payment.
settle payment now
Uses "settle payment" instead of "pay", emphasizing the completion of the transaction.
remit payment instantly
Formally suggests immediate remittance, suitable for business contexts.
make an immediate payment
Nominalizes "pay" and specifies the immediacy of the payment.
clear the balance immediately
Focuses on clearing the outstanding balance with immediate action.
pay without delay
Emphasizes the absence of delay in making the payment.
effect payment promptly
A formal way to suggest prompt payment.
discharge the debt now
Emphasizes the act of releasing from debt with immediate payment.
tender payment forthwith
A highly formal expression suggesting immediate payment.
liquidate the dues promptly
Focuses on settling the debts or dues quickly.
FAQs
How can I use "pay at once" in a sentence?
You can use "pay at once" to emphasize the need for immediate payment, as in "You must "pay at once" to receive the discount".
What are some alternatives to "pay at once"?
Alternatives include "pay immediately", "settle payment now", or "remit payment instantly", depending on the formality of the context.
When is it appropriate to use "pay at once"?
It's appropriate to use "pay at once" when there is a clear reason for immediate payment, such as a limited-time offer or to avoid penalties. Consider the urgency of the situation before using this phrase.
Is "pay at once" suitable for formal communication?
While grammatically correct, "pay at once" can sound demanding in very formal settings. Alternatives like "effect payment promptly" or "tender payment forthwith" might be more appropriate.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested