For me never ask for raise. Coz my employer promoted me when it comes to that one to one yearly discussion

For me I feel that if u have to ask means u can leave. Another way u can throw letter and tell them the issue

But talk first with your boss. 3 year no raise no promotion something wrong with you or company

Have a talk with your manager but come with facts such as your achievements and notable contribution

This is important to have a discussion of how u see your value in the Organization and warrant a salary adjustment or increment as current economic climate and inflation is very different compared to 3 years ago

Probably first, you'll have to check what's roughly the market rate. Example, for similar role in other organization - how much do they pay? What is the range of salary for a role similar to you? And where does your current salary falls in that range? Whether its at the lower tier or out of the range, or you're being paid within the average range? Find out the "gap". Then from the gap, how much is your expectation for a salary adjustment?

When you nego for salary adjustment, you have to:

- show the kind of value you bring to the organization (your achievement/ contribution or success), or,
- show the gap of earning (ie. current market rate is x but company is paying you 20% below market rate and you're unhappy with this), or,
- bring another external offer to the table and inform them you're considering it (FYI this is a bit more drastic that you're on the verge of leaving)