The phrase 'phase out gradually' is correct and usable in written English.
It is used to describe an action that takes place over a period of time, and is done in a gradual and slow manner. For example: "Instead of stopping production of the product immediately, the company decided to phase it out gradually, over the course of a year."
Under current law, the estate tax is set to phase out gradually by 2010, but return in full force in 2011.
In 1996 the U.S. Congress voted to phase out gradually a major tax exemption for U.S. manufacturers doing business in Puerto Rico.
The rules need to change so applicants face something other than a binary choice between work and benefits, perhaps by allowing benefits to phase out gradually as earnings from employment rise.
First, benefits that phase out gradually (as the earned-income tax credit currently does) are preferable to benefits that just disappear abruptly when you pass an income threshold — or when your learning-disabled child starts mastering the ABCs.
"We just want to bring death to the death tax". The Republican-controlled House has already passed a bill that would permanently abolish the estate tax, which under current law is set to phase out gradually by 2010 and then return in full force in 2011.
(If, on the other hand, the deduction were to phase out gradually as the headcount increased from, say, 400 to 500, the deduction would be much smaller, and the choice would be much less stark for the company approaching the threshold).
The MFA has been phased out gradually since 1994; in that time China's share of the American clothing market has risen to 53%.
Substitution therapy could have been phased out gradually as the year went on, or it could even have been used as a pilot project to test Russia's hardline stance on methadone and see if it could work in the Russian context.
In Germany, low carbon nuclear power is being phased out gradually since the Fukushima disaster.
The colon, the existing currency, will be phased out gradually.
As the economy stabilizes the FICA credit to employers could then be phased out gradually over time.
