The phrase "a one off amount" is correct and usable in written English.
It can be used to refer to a single payment or charge that is not expected to be repeated in the future.
Example: "The company offered a one off amount as a bonus for the successful completion of the project."
Alternatives: "a one-time payment" or "a single payment".
"This is a one-off amount but the investment is of a scale which can be of true benefit to the game at the professional level".
In January 2010, India announced a $1bn line of credit for Bangladesh, the highest one-off amount to any country from India as a reward for its co-operation in dealing with terrorism and insurgency.
If you choose to defer your pension you will be entitled to a higher weekly amount later on, or a one-off lump sum payment.
Families like the Kallons, who were living in camps and displacement centres, also received a one-off recovery aid amount of US$300 to help with resettlement.
So far, rich countries have pledged $18bn in one-off amounts and less than $1bn has been delivered.
The state gives families a one-off 1,000zl (£220) at birth, an amount the Kraków regional government matches for its own residents.
"Six points for a one-off Test is a huge amount at stake but we really wanted the team on top to have done well in the Test match.
This is particularly true if you're an infrequent user: A one-off sniff of a small amount of cocaine might be undetectable within hours.
In terms of business model, users do not pay to use the platform but pay at the bodyshop after the repair work is done, with Fixico invoicing the bodyshops on its platform on a monthly basis — taking a commission percentage of each total order amount (plus a one-off sign up fee from each repair shop).
Each of these new statutory organisations will have additional set-up costs – perhaps amounting to a one-off spend of £360m.
Rather than a one-off event that requires cramming large amounts of information into a short time span, we suggest spreading out the modules over six to nine months to allow the knowledge to grow in context.
