The celebrity weekly will increase its pagination to accommodate 50.25 pages of ads while maintaining its 80:20 editorial/advertising ratio.
The ads are from clients in markets including beauty, travel, telecommunications, retail, entertainment and insurance brands.
Hello!'s advertising volumes are up 5% year-on-year so far in 2006, in contrast to glossy women's monthlies and men's magazines, which are both in decline.
The publisher said sales had increased on the back of recent circulation successes within the wider celebrity weekly market, which posted an increase of 8.5% year on year in the recent ABCs.
In the January to June reporting period, Hello!'s sales rose by 3.3% period on period and 2.9% year on year to 403,666.