Giving & Donating
Why Charities Keep Writing to You After You Gave Once
The letters, the emails and the phone call are not a failure of manners. They are the visible end of an economic model that only works on repeat giving.

This works through donor communication and contact preferences in the order the parts actually depend on each other.
The short version
- Acquiring a new donor usually costs more than the first gift returns.
- Contact frequency is set by testing, not by guesswork.
- Preference options are almost always better than a full opt-out.
The arithmetic behind the mailing
Recruiting a donor through advertising, direct mail or street fundraising generally costs more than that donor's first gift is worth on its own. The organisation only recovers that cost if the person gives again, which makes the second and third gifts the ones the model actually depends on. Every subsequent contact is an attempt to reach that recovery point, and the contact stops being profitable at some measurable frequency.
Fundraising teams test that frequency continuously, which is why the volume of post you receive is a calculated quantity rather than an oversight. A charity that never contacted past donors would spend permanently on acquisition and never build the regular income that funds anything long term.
Why the letter looks the way it does
The envelope, the handwritten-style font, the free pen and the specific suggested amount have all been tested against alternatives that performed worse. Enclosures such as address labels or a small gift exploit reciprocity, which is a robust and heavily studied effect in behavioural research. Many donors find the technique irritating, and organisations know this because they measure complaints alongside response rates on every mailing.
The decision to keep using a tactic that annoys some people and works on others is a trade-off made deliberately rather than by accident. Whether the reputational cost is properly priced into that decision is a fair criticism of parts of the sector.
Data, consent and where your details came from
Rules on consent, data sharing and how long details may be kept differ substantially between jurisdictions and have tightened in many of them. In some regions charities may contact past donors on a legitimate-interest basis without fresh consent, and in others they clearly may not. List rental between organisations has narrowed considerably, but if post arrives from a charity you never supported, ask them directly where the record came from.
From the receiving end, any organisation should be able to tell you the source of your record, and an inability to do so is a genuine warning sign. Check your own jurisdiction's rules rather than assuming, because the position varies more than most donors expect it to.
Preference beats opt-out
Telling an organisation to write once a year rather than never keeps a supporter it would otherwise have lost entirely. Most fundraising databases now support channel and frequency preferences, and using them is faster than unsubscribing and then re-subscribing a year later.
On the shop floor, a total opt-out often removes you from the annual report and impact updates as well as the appeals, which is rarely what people intended. Where a legacy or a long-standing regular gift is involved, silence can create administrative problems the organisation cannot resolve without contacting you.
Setting a preference is a two-minute action that changes the entire cost structure of your relationship with an organisation.
The phone call
Telephone fundraising has the highest conversion rate of the mass channels and also the highest complaint rate, which is why its use has narrowed. Many regulators now restrict calling donors who have registered on preference services or who have not given explicit permission to be called.
Calls converting a one-off donor into a monthly giver are the most common use, because that conversion is the single most valuable outcome available. Saying no clearly and asking to be recorded as no-telephone is far more effective than declining politely without giving any instruction. A caller who does not accept that instruction is a supplier problem and should be reported to the charity itself rather than endured.
Being an inexpensive donor
Giving by regular transfer rather than responding to appeals removes you from most of the expensive contact cycle immediately. Telling the organisation you do not need thanking, updates or a card measurably reduces what your gift costs them to service each year.
Consolidating giving to fewer organisations reduces total mail volume far more effectively than opting out of individual lists one at a time. Confirming your tax status once, where such a scheme exists locally, avoids repeated follow-up about the same piece of paperwork. The cheapest donor to service is a quiet, regular one who has stated their preferences and then left the organisation alone.
The takeaway
Set a contact preference instead of disappearing; it costs less on both sides.
Give the boring thing they asked for rather than the interesting thing you have.
Questions readers ask
Is it rude to tell a charity to stop writing?
No, and a preference setting is more useful to them than a silent opt-out. Say what you want rather than saying nothing at all.
Why does the appeal include a free pen?
Reciprocity raises response rates, and the effect is well established. The organisation is trading a small unit cost against a measured increase in giving.
Also by Tushar Jaiswal
- What Happens to a Donated Sofa Between Your Door and the Shop FloorGiving & Donating
- Why Fewer, Larger Donations Beat Spreading Money ThinlyGiving & Donating
- How to Read a Fundraising Appeal for What It Is Actually AskingGiving & Donating
- Why Charities Ask You to Confirm Your Tax StatusGiving & Donating





