Give proportionally to stay in a state of abundance

Give at a level that feels generous without triggering deprivation — so you can keep giving.

Why it works

Giving that creates felt financial strain activates a scarcity mindset, which undermines both the happiness benefit and the sustainability of the practice. The prosocial spending effect appears across income levels, but it requires the giver to feel the gift is a genuine choice rather than a sacrifice they will resent. Calibrating giving to a sustainable proportion maintains the positive emotional valence and keeps generosity an identity, not an obligation.

How to do it

1. Set a giving budget as a percentage of income that feels genuinely generous and genuinely manageable — a level you could maintain for years without resentment.
2. When giving opportunities arise above that budget, choose smaller alternatives rather than exceeding your limit.
3. Review the budget annually and raise it when circumstances allow, rather than letting it drift down by default.

Evidence

Dunn and Norton found that financial strain associated with giving negated the happiness boost; the effect depends on the giving feeling chosen, not coerced. Sustainable prosocial habits require that the giver not feel depleted. (mechanistic)

The specific budget-as-percentage approach is a practical application; the evidence base is the observation that strained giving removes the happiness effect.

Common mistake

Over-giving to feel virtuous in the moment, then resenting the constraint for weeks afterward — which both poisons the original gift in memory and reduces future generosity.