How much Reddit budget is enough
The floor buys delivery; the guidance buys learning. This guide separates platform minimums from decision-grade budgets.
By Katie Delaney · 2026-09-04 · 4 min read
Reddit requires at least $5 a day at account level, recommends at least $50 a day per ad group, advises 3 times target CPA as budget signal, and suggests $100 plus a day for lower-funnel tests over one to two weeks. Sub-$500 total tests rarely produce decision-grade evidence.
Floor versus guidance#
Five dollars buys impressions; it does not buy conclusions. The $50 per-ad-group recommendation funds enough auctions to learn, and the oft-quoted $50 automated minimum is practitioner-reported rather than officially verified, so treat it as wisdom, not law. Reddit Help cost page: how much Reddit ads cost.
The 3x CPA rule#
Budget at least three times target CPA daily so the auction sees enough conversions to optimise. A £30 target CPA on £20 a day starves every bidderezing; the same target on £100 a day learns. Lower-funnel tests add the $100-a-day, one-to-two-week guidance on top. Calculator: budget calculator on the hub.
Time is budget#
Reddit recommends a two-to-three-week learning phase after launch; 14 days is the minimum operational checkpoint. SMB guidance extends to two to four weeks for meaningful data. Judging at day four mistakes noise for signal and kills tests that were working. Patience mechanics: the learning phase.
The 70-30 split#
Open with roughly 70 per cent prospecting, 30 per cent retargeting, then reallocate to CPA, ROAS and downstream quality. Within prospecting, fund core community clusters and reserve a smaller pool for testing new rooms, phrases and angles. Allocation method: the 70-30 split.
Practitioner reality check#
Agency analyses estimate $240 to $660 buys only a few hundred clicks: barely one campaign evaluated. Even $500 may test a single hypothesis properly. Budget for learning explicitly, present it as tuition with a syllabus, and never promise channel verdicts from pocket money. Benchmarks: WordStream cost guide.
Putting budget discipline into practice#
Rebuild the media plan this week on guidance numbers, not floors: $50 per active group, 3x CPA daily, 70-30 split, two-to-three-week windows. Present the total as tuition with a syllabus to stakeholders; underfunded plans fail expensively where honest plans learn cheaply.
Defend learning budgets against monthly reallocation pressure with pre-committed verdict dates. Budgets moved mid-learning buy noise at full price. Defence: the 70-30 split and the learning phase.
Frequently asked questions#
What is the Reddit ads minimum budget?
Five dollars a day at account level; Reddit recommends at least $50 a day per ad group.
What is the 3x CPA rule?
Budget at least three times target CPA daily so bidders see enough conversions to learn.
How long before judging Reddit results?
Two to three weeks minimum; 14 days is the earliest operational checkpoint.
Is $500 enough to test Reddit?
Barely one campaign. Sub-$500 tests rarely produce decision-grade evidence.
How should prospecting and retargeting split?
Roughly 70-30 to start, reallocated to measured CPA and quality.
How should learning budgets be presented?
As tuition with a syllabus: phases, proofs and verdict dates pre-committed.
Read more on this topic#
The Reddit Ads Hub
Free tools, format guides and live news for every Reddit Ads format.
Open the hubThe Reddit learning phase: 20 events and Learning Limited
Events, Limited status and testing discipline.
Read the entryThe 20 per cent edit rule: changes that restart learning
Triggers, batching and safe scaling.
Read the entryThe Reddit auction: second price, overspend and delivery
Pricing mechanics and billing quirks.
Read the entryWant Reddit Ads managed properly?
folkfox runs Reddit campaigns that respect the thread: native creative, separated ad groups and honest reporting. Talk to us before your next test.