More than 1,000 respondents participated in the survey, MojPosao said on Thursday.
Fourteen percent of respondents who do not expect a Christmas bonus cited company policy or weaker business results as the main reasons.
Among employees who "count on" a Christmas bonus, 92% expect a cash payment averaging €465, which is an increase of 31% compared to last year's average of €354.
Workers often have overly high expectations, MojPosao noted, adding that before the introduction of the euro, workers’ predictions about Christmas bonus amounts were fairly accurate. However, last year saw a significant mismatch between expectations and actual payments.
As in previous years, less popular forms of Christmas rewards include shopping vouchers and gift packages. Twenty percent of respondents expect shopping vouchers, while 9% believe they will receive a gift package from their employer.
Christmas bonuses are the most certain for employees in state-owned companies and public institutions, with 95% of employees in state-owned companies and 98% in public institutions expecting them. Public institution employees estimate they will receive an average of €390, while workers in state-owned companies expect €436.
Employees of foreign-owned private companies predict an average payout of €499, but only 85% of them expect a Christmas bonus.
The least hope for Christmas bonuses is among employees of private companies with domestic ownership, where 84% of respondents expect them, with an average amount of €476.
In large companies, 91% of employees predict a Christmas bonus averaging €470.
In medium-sized and small companies, 80% of employees expect a Christmas bonus, with average amounts of €460 in medium-sized companies and €462 in small companies.