The phrase "a one time benefit" is correct and usable in written English.
It can be used to describe a benefit or advantage that is available only once and not repeated in the future.
Example: "The company offered a one time benefit to all employees who completed the training program."
Alternatives: "a one-off advantage" or "a single-use benefit".
BNP said the quarter included a one-time benefit of €145 million from its restructuring efforts.
The city would get a one-time benefit of $100 million, the governor said.
But the profit was inflated because of a deferred tax provision, which the audit counted as a one-time benefit to Gazprom last year.
The city dutifully applied for the emergency aid — the Disaster Supplemental Nutrition Assistance Program, or D-SNAP — and the federal government agreed to provide a one-time benefit for qualified applicants.
The current quarter's results included 7 cents a share in costs related to the Pringles deal and a one-time benefit of 2 cents a share tied to the buyout of the snacks maker.
The earnings include a one-time benefit of 15 cents a share from the closing of a subsidiary and a one-time write-off of about 3 cents a share involving assets from venture investments.
While Blockbuster posted a stunning 33percentt increase in operating profit for the first six months of 2003, Mr. Greenfield noted that part of the gain came from aggressive cost-cutting, which is a one-time benefit.
If there is proof of the leadership India can provide it is the recent announcement of a one-time benefit payment of $13 million to former national and domestic players for their services to Indian cricket.
A lot of the server consolidation is a benefit, but it's a one-time benefit.
And this will be a one-time benefit: Cipro has been viewed as a liability by many, because the drug's patent protection will soon end.
The research firm noted that "dual eligibles," those people who are covered by both Medicaid and Medicare, may represent a one-time benefit for companies that heavily discount to Medicaid.
