Xìnyòngkǎ zhàngdān rúguǒ ànshí quán'é huánkuǎn jiùshì miǎnxī de.
Credit-card bills are interest-free as long as you pay the full amount on time.
Tips
usage
Very common in e-commerce promotions: 免息分期 (interest-free installments) is the default hook on Taobao/JD for big-ticket items. Contrast with 贴息 (subsidized interest) and 计息 (interest-accruing).
