LinkedIn Ghostwriting Agency vs Hiring In House

In Depth

The real cost of an in-house LinkedIn writer nobody puts in the spreadsheet

Most founders run this decision as a simple rate comparison. An in-house writer costs a £45k-£60k salary plus roughly 20% in employer national insurance, pension and equipment, landing near £65k all-in. An agency retainer runs £2k-£6k a month. On that arithmetic the hire often looks cheaper per word, and that is exactly where the reasoning goes wrong.

The number that never makes the spreadsheet is the hidden management tax. A junior in-house writer does not know your market, your buyers or the arguments that actually move a deal, so you spend the first three to four months teaching them - reviewing drafts, correcting positioning, explaining why a post that reads well still says nothing your buyer cares about. That is your time, at your effective hourly rate, and it is the most expensive time in the business. Founders who hire to save money often find they have bought themselves a second job editing someone else's LinkedIn.

There is also a bench-depth problem. One writer is one point of failure. They take annual leave, they get sick, they hand in notice, and your presence in the feed goes quiet for weeks precisely when consistency is the whole game. An agency carries that risk on its own balance sheet, not yours.

Where an in-house hire genuinely wins

This is not a one-sided pitch, and any operator who has done both will tell you the hire wins in specific conditions. If you are posting across five executives, feeding a sales team with content, running events and coordinating a wider brand programme, the volume and coordination justify a full-time person who lives inside the business and hears the hallway conversations an external partner never will.

The hire also wins on proximity to insight. A writer sitting in your Monday standup catches the offhand comment about a lost deal or a shifting buyer objection and turns it into a post that afternoon. An agency has to engineer that access deliberately, which is precisely the gap most agencies never close - they file generic thought-leadership because they were never close enough to know better.

So the honest test is not price. It is whether you have enough consistent volume to keep a full-time person busy, and whether you can give them the raw material and feedback loop they need to sound like an authority rather than a content calendar.

How Underdog closes the proximity gap without the headcount

We built the model to keep the one advantage in-house writers have and remove the one weakness agencies usually carry. It starts with Voice Capture, a 90-minute deep session that records how you actually think through your market, your contrarian takes and the arguments you make to close a room. That becomes the source your posts are drawn from, so the writing reads as yours from week one rather than after four months of correction.

Social Scout then finds who is already engaging in your space, so the content lands in front of the buyers deciding who to trust rather than chasing follower counts. You approve, you never draft. A single founder engagement runs a fraction of a £65k salary with no notice periods, no cover gaps and no management tax, and it makes you the name that comes up first when your market goes looking. See our [LinkedIn ghostwriting service](/services/linkedin-ghostwriting), how [Voice Capture](/how-it-works/voice-capture) works, and [what a fractional CMO should do here](/vs/agency-vs-fractional) before you commit to a hire.