Since you are probably not privy to your employers actual financials, there is no point speculating. Just go ahead and ask. If they tell you there's no money,

Since you are probably not privy to your employers actual financials, there is no point speculating. Just go ahead and ask. If they tell you there's no money, or that they think they're already paying you enough, try to negotiate a re-evaluation in 3 to 6 months. Decide for yourself if you can live with not getting a raise. Negotiating directly with the CFO beats negotiating with him through an HR person.