The right link building budget is not a percentage of marketing spend. It is whatever closes your gap in a sensible number of months — which means it depends on your gap, and the gap depends on your category rather than your funding round.
That said, stage correlates strongly with gap size, team capacity and time horizon. So here is the stage-by-stage version, with the caveat that the gap subtraction beats all of it.
Bootstrapped / pre-seed
Budget: $0–$1,000/month.
The answer here is usually not to buy links at all, and any supplier telling you otherwise is selling something.
Where the money should go: nowhere. Where the time should go:
- Claim what is already available. Integration partners, associations, conferences you have spoken at, customers with case study pages, tools you are listed in. Most companies have 20–50 of these unclaimed. Two weeks of email, zero budget.
- Fix internal linking. Whatever authority you have is probably sitting on blog posts and not reaching anything commercial.
- Build one thing worth citing, if you can do it with internal time.
The mistake at this stage: buying a $500/month package that delivers one or two placements. That is not a small programme; it is a subscription to nothing.
Seed
Budget: $1,500–$3,000/month.
The most consequential decision point in this article. At this level you can buy roughly 5–9 placements a month, and whether that makes sense depends entirely on your gap.
| Your gap | At 7 links/month | Verdict |
|---|---|---|
| 30 domains | 4–5 months | Buy. This works. |
| 60 domains | 9 months | Workable, but tight |
| 100+ domains | 15+ months | Build instead |
If the gap is large: put the entire quarterly budget into one benchmark or dataset instead. One good asset routinely produces more referring domains in year one than fifty-four bought placements, and it keeps producing after the spending stops.
The mistake at this stage: spreading a small budget thinly across twelve months of volume and arriving at month twelve with the gap still mostly open.
Series A
Budget: $3,000–$6,000/month.
The stage where a programme becomes a programme. 8–18 placements a month closes most mid-market gaps inside a year.
Allocation that works:
- ~60% editorial acquisition against the gap list.
- ~25% round-up and comparison placement — this is the workstream that produces referral demos in month two while everything else warms up.
- ~15% held for one linkable asset in the year.
The mistake at this stage: spending the entire budget on volume and never touching the comparison surface, which is where your buyers actually shortlist.
Series B
Budget: $6,000–$12,000/month.
16–30 placements a month, plus digital PR becomes affordable without cannibalising acquisition. This is the stage where a quarterly data study starts paying for itself, and where the compounding begins.
Allocation: ~50% editorial acquisition, ~20% round-up placement, ~25% one data study per quarter, ~5% profile monitoring and hygiene.
The mistake at this stage: measuring quarterly. A data study looks like the worst line item at ninety days and the best at month twelve. Companies that review on a quarterly cycle cut it just before it starts working.
Series C and beyond
Budget: $12,000+/month.
30–40+ placements, multi-market where relevant, owned assets as the engine rather than the supplement.
This is also the stage where the build-versus-buy calculation flips. Above roughly 15–20 acquired links a month sustained for a year, in-house economics start to win — because the fixed costs an agency spreads (prospect database, sender reputation, scoring infrastructure) are now justifiable for one company.
The sensible shape: hire for volume acquisition, keep an agency for digital PR and category placement, which need relationships that take years to build.
The mistake at this stage: hiring one person and expecting them to replicate an agency's output in month three. The ramp is six to nine months before the first links land.
The calculation that beats all of the above
Gap ÷ monthly output = months to close.
Under 15 months: volume acquisition is a sensible use of budget.
15–20 months: marginal — consider splitting between acquisition and one asset.
Over 20 months: buying placements is the wrong instrument at this budget. Build something citable instead, or raise the budget.
Ten minutes of arithmetic, and it prevents the most expensive mistake in this category — which is spending a year at a level that cannot finish the job.
What scales and what does not
| Line item | Scales with budget? |
|---|---|
| Editorial placements | Yes, roughly linearly |
| Round-up placement | Partly — there are only so many round-ups |
| Digital PR | Only to a point — one good story per quarter is the ceiling |
| Directory and partner links | No — finite and nearly free |
| Internal linking | No — one-off, costs almost nothing |
The bottom two rows are why the bootstrapped advice above is not a consolation prize. Those items are equally available at every stage and most companies never do them.
When to spend nothing
Three situations, at any stage.
The page will not convert. Ranking a page that converts at 0.3% is an expensive way to discover the conversion rate. Fix the page; it is cheaper.
The profile is damaged. Adding to a profile full of network inventory buys a defended position rather than an improved one. Clean first, then start.
The SERP wants something you are not. If the top four results are all publisher round-ups, acquiring links to your product page is fighting the format. Pursue inclusion instead — a different workstream with a different budget.
We turn down roughly one enquiry in five for one of those three reasons. It is the least commercial thing we do and it is the reason the engagements that do start tend to last.