What's the Minimum Daily Budget for Microsoft (Bing) Ads in 2026?

Microsoft Advertising does not enforce a minimum daily budget — you can launch a campaign with any daily amount you choose, and small businesses typically start at $5-$15 per day when testing the platform. There's no equivalent to Meta's per-ad-set floor or Google's Demand Gen minimum; you set a daily number, pay per click, and Microsoft serves ads against it.

How the budget actually caps your spend

Setting a daily budget doesn't guarantee your daily spend stays under that number on any given day. Microsoft can spend up to 100% over your set daily budget on a high-traffic day if it expects strong performance, then pull back on slower days. The real guarantee is on the monthly total, not the daily one: spend stays at or below your daily budget multiplied by 30.4 (the average number of days in a month), so a $10/day budget caps your monthly spend near $304 even if some individual days run well above $10.

Why $5-$15/day is the realistic starting point, not a hard floor

Since there's no platform-enforced minimum, the $5-$15/day range small businesses typically start with is a practical choice, not a rule. It reflects roughly the same logic that applies on Google Ads: a budget needs to generate enough daily clicks for you to tell whether the campaign is working, and $5-$15/day is usually the lowest amount that produces a handful of clicks per day in most industries on Microsoft's typically lower-competition, lower-CPC search inventory.

How Microsoft Ads costs compare to Google Ads

Microsoft Advertising generally runs at lower cost-per-click than Google Ads for the same keywords, since search volume and advertiser competition are both lower on Bing than on Google. That's part of why the platform is often used as a secondary or supplementary channel — it reaches a different, often older and higher-income audience at a lower cost per click, though at meaningfully lower search volume than Google.

What to budget beyond the daily minimum

• Testing phase: $5-$15/day is enough to confirm the platform delivers traffic and to start gathering click data
• Scaling phase: once a campaign shows a workable cost per click and conversion rate, budgets typically scale in proportion to Google Ads spend, often as a smaller supplementary allocation (commonly cited as 10-20% of a business's Google Ads budget) rather than a dollar-for-dollar match
• Monthly ceiling: remember that your effective monthly cap is roughly daily budget × 30.4, not daily budget × the number of days you actively monitor the account

Why a "no minimum" platform still needs a real starting number

The absence of an enforced floor is easy to misread as permission to spend almost nothing and still get useful results. In practice, the same data-volume logic that applies on every auction-based ad platform still applies here: a campaign generating one or two clicks a day, even at $0 in required minimum spend, isn't producing enough signal for Microsoft's bidding systems or for you to judge whether the account is working. The $5-$15/day starting range exists precisely to avoid that trap — it's the smallest amount most advertisers have found reliably produces enough daily activity to evaluate a campaign within the first few weeks, rather than a number Microsoft requires.

Bottom Line

There's no official minimum daily budget for Microsoft Advertising — start at $5-$15/day to test the platform, keep in mind your effective monthly spend can run up to daily budget × 30.4, and scale up once you've confirmed the cost per click and conversion rate justify a larger allocation.