The cynical answer

Long enough to not be a headline in the team chat. Like, don't quit next Tuesday. That just looks bad.

But here's the thing: there's no actual rule. Nobody can legally force you to stay. A raise doesn't own you.

The real answer involves consequences

There's a difference between "you can do this" and "you should do this."

Leave too soon and people remember. The person who gave you that raise won't speak highly of you. The team will think you used them. Your manager's boss will wonder why they bothered. Is it fair? Doesn't matter. That's how it works.

You're not breaking a law. You're just burning a bridge.

Check your offer letter for clawback clauses

Here's what you actually need to know: some companies have clawback clauses on raises and bonuses. If you leave within 12 months, you might have to give the money back.

Read your offer letter. Read your employment agreement. If there's a clawback, you need to know before you quit.

Vest dates are real

If your raise came with stock options or bonus money, check when it actually hits your account. Some companies vest stock over years. Some bonuses don't pay until next quarter.

If your raise is mostly stock and you quit before it vests, you lose it. That's not fair. But it's how it works.

Know your vest dates before you make your move.

The reference thing matters more than you think

The person who just gave you a raise is the person who's going to get called for your reference. If you quit a month later, they're going to be honest about it.

"Yeah, we just gave them a raise and they left." That's not a glowing recommendation.

Will it destroy you? No. But it's not helping.

Here's the reality

A raise isn't a reason to stay. It's a reason to negotiate harder before you leave. If you're thinking about quitting and they offer you a raise to stay, now you know you were undervalued. That's useful information.

But if you've already decided to quit, a raise doesn't change that. You just have to decide whether burning that bridge is worth it. For most people? Wait a few months. Six months is polite. A year is safe.

But if the place is toxic? A raise doesn't make it less toxic. Get out.