A billing threshold is the amount of advertising cost that, once reached, triggers an automatic charge to your card or bank account in Google Ads. If you do not reach the threshold, you are charged on a regular cycle instead, typically 30 days after your last automatic payment. Whichever comes first triggers the charge.
How a billing threshold works
Thresholds apply to accounts on automatic payments, where Google charges you after your ads have run. As clicks accrue costs, Google keeps a running total. When that total hits the threshold, it charges your payment method and starts again from zero. You may see several charges in a busy month and only one in a quiet one.
New accounts start with a low threshold. As you build a record of successful payments, Google raises it in stages to a higher level, so you are charged less often. The amounts are set in your account currency, which for UK accounts is pounds. They change over time and vary between accounts, so check the figure in your own billing summary rather than relying on a number quoted elsewhere.
Other set-ups work differently. Manual payments mean you pay in advance and ads run until the balance is spent. Monthly invoicing is a credit line for eligible businesses, with no threshold charges at all. Your payments profile holds the business details, payment methods and invoices for whichever option you use.
Why it matters
If a threshold charge fails, because a card has expired, reached its limit or been blocked by the bank’s fraud checks, your ads can stop until the payment goes through. For a business that relies on paid search for enquiries, that is lost leads at short notice.
Thresholds also affect bookkeeping. Several charges a month with different amounts can confuse reconciliation, especially when you need VAT records. Google provides monthly statements and invoices in the billing section, and those are what your accountant needs, rather than individual card charges.
For UK advertisers, check that your payments profile shows the right business name, address and VAT number. Those details appear on your invoices, and correcting them later can be slow. The account currency is fixed when the account is created, so a UK business should make sure it is set to pounds from the start.
Common mistakes
- Using a personal card with a low limit, which declines when spend rises in a busy season.
- Letting the only payment method on file expire, with no backup method set.
- Reconciling individual card charges instead of the monthly statement.
- Assuming the threshold limits spending. It does not; your budgets do.
- Sharing billing access with people who only need to manage campaigns.
How to act on it
Open the billing section of Google Ads and check which payment setting you use, what your current threshold is and which payment methods are on file. Add a backup payment method so a failed charge does not stop your ads, and make sure the primary card’s limit comfortably covers your busiest month.
Download monthly statements and pass them to whoever handles your accounts. Review who has billing access under your access levels, and keep it to the people who need it. If you are handing an account to a consultant, you can grant campaign access without sharing billing at all, which is how I prefer to work in ongoing Google Ads management.