From time to time, Google might tweak your Google Ads balance. This is called an adjustment. Most of the time, adjustments come in the form of credits. Credits reduce your account balance, while debits increase your account balance.
You can find any adjustments applied to your account by clicking the tools icon and choosing Summary, then clicking Transactions to view your transaction history. Here are the kinds of credit adjustments you're most likely to see:
- Courtesy: You'll see this when a promotional code or courtesy credit is applied to your account. This credit is good for future advertising only and can't be refunded to you.
- Invalid activity: This one's for invalid clicks and impressions – those generated by robots, automated clicking tools, and other deceptive software. Google prohibits this kind of bad behavior. And that's why you don't have to pay for these unfair clicks and impressions.
- Overdelivery credit: Sometimes Google gets a little excited and show your ad too much – so much that your account accrues more costs than your average daily budget allows. Whoops! If this happens, don't worry – your account will receive a credit to cover the excess costs.
- Account budget overrun: You'll see this if your advertising costs exceed your prepaid balance. Google will credit back the excess amount so you don't end up paying for this activity. This only appears for accounts using manual payments.
- Excess credits stored for future use: In case you receive more credits than what you spent in a particular month, you may see a negative balance in your account. That negative balance is referred to as “excess credits”. In countries where Google can't generate negative invoices (For example, Turkey, China, Taiwan) to comply with local regulatory requirements, Google will move these excess credits from showing on your invoice as a negative balance and keep them in storage for future consumption. In the period where this happens, you will get a zero-balance invoice and the excess credits that were stored will automatically be used when you incur ad spending in any future month.
- Excess credits applied from previous months: If in any previous months there are excess credits available and you happen to have ad spending in the current month, Google will apply the stored excess credits to your ad spend up to the limit of the credit balance. This line is showing you how much excess credits were applied to your ad spend in a particular month. In the event of account termination, this reflects the excess credits that can be refunded to you.
- Remaining amount available for future use: Once the excess credits are applied to your ad spend but there are still some credits left, this line will tell you how much you have left for ad spend in any future month. Note that this is a post-tax available credit amount. For example, if the amount shown is $110 and the tax rate is 10% in your country, this means you have $100 available for ad spending.