Credit Card Grace Period: How to Pay Zero Interest on Purchases

Independent guide - not affiliated with or endorsed by any card issuer, bank, card network or credit bureau. For your own account, contact your issuer through its official website, app or the number printed on your card.

A credit card grace period is the time between the end of a billing cycle and your payment due date. If your card has one and you pay the full statement balance by the due date, you usually pay no interest on purchases. Federal rules require issuers to deliver your statement at least 21 days before the payment is due, but they do not require issuers to offer a grace period at all.

This guide explains how the grace period works, what the 21-day rule really says, how you lose it, how to get it back and which kinds of balance never get one.

What a grace period is

The CFPB defines a grace period as the period between the end of a billing cycle and the date your payment is due. During that window, purchases from the cycle that just ended do not collect interest, provided you pay the statement balance in full by the due date. If you do, the cycle repeats and you can use the card month after month without paying interest on purchases.

The CFPB also notes that card companies are not required to give a grace period, although most cards provide one on purchases. Your cardholder agreement and the account-opening table (the so-called Schumer box) say whether your card has one and how it works, under a heading such as "How to Avoid Paying Interest on Purchases."

The 21-day rule

Regulation Z sets a timing rule for credit card statements. Issuers must mail or deliver periodic statements at least 21 days before the payment due date shown on the statement, and, where a grace period applies, at least 21 days before the grace period expires (12 CFR 1026.5(b)(2)(ii)). This gives you at least three weeks to review the statement and pay.

That is why your grace period is usually at least 21 days long. Some issuers allow more. The rule is about delivery timing, not the length of a billing cycle, so the number of days from purchase to due date varies: a purchase on the first day of a cycle enjoys the cycle plus the grace period, while one on the last day enjoys only the grace period.

How you lose the grace period

The grace period normally depends on paying the full statement balance, not just the minimum. The CFPB says that if you lose your grace period by not paying your balance in full by the due date, you will be charged interest on the unpaid portion. In addition, on many cards new purchases then start collecting interest from the date each purchase is made, instead of waiting for the next due date.

In practice, people lose the grace period when they:

• Pay the minimum or another partial amount.
• Pay late, even by a day.
• Pay the "current balance" shown in the app after new charges, believing it to be the statement balance, but fall short of the statement amount. Our guide to statement balance vs current balance explains the difference.

How to get it back

Issuers set their own rules for restoring a grace period. Many require you to pay the statement balance in full for one or two consecutive billing cycles. Until then, interest may continue on new purchases. Some cards also charge residual or trailing interest: interest that builds up between the date your statement is issued and the date your full payment arrives. That can show up as a small charge on the next statement even after you pay "everything." Pay the next statement in full and it normally stops.

Federal rules also limit a practice called double-cycle billing: issuers may not charge interest based on balances from days in billing cycles before the most recent one, with limited exceptions. If your interest seems higher than you expected, the article on how credit card interest works walks through the calculation.

Balances that never get a grace period

• Cash advances. Interest usually starts on the day of the transaction, often at a higher rate, plus a fee. See what a credit card cash advance is.
• Balance transfers. Unless a promotional 0% rate applies, transferred balances usually collect interest from the transfer date. Carrying one can also affect the grace period on new purchases on some cards, so read the terms; our balance transfer guide covers the traps.
• Cash-like transactions, such as some money orders or gambling transactions, which many issuers treat as cash advances.

Grace period vs payment due date vs late fee

The grace period protects you from interest. It does not change your due date. If you miss the due date, you can be charged a late fee and lose the grace period at the same time. Paying 60 or more days late can also trigger a penalty rate. Our guide on what happens if you miss a credit card payment explains the timeline.

Simple habits to keep paying zero interest

1. Set up an automatic payment for the full statement balance, not the minimum.
2. Turn on due-date and statement alerts in your issuer's app.
3. Do not use the card for cash withdrawals.
4. If you cannot pay in full this month, pay as much as you can, then pay in full for the next cycles to restore the grace period, and keep an eye on credit utilization.

Quick example

Say your billing cycle ends on the 5th and your payment is due on the 1st of the next month. You buy groceries on the 10th, so they appear on the statement that closes on the 5th of the following month. If you pay that whole statement balance by the due date, you pay no interest on the groceries, even though weeks have passed since you bought them. If you pay only part of it, interest is charged on the unpaid portion, and on many cards new purchases start collecting interest straight away until you pay in full again.

Sources

• CFPB: What is a grace period for a credit card?
• eCFR: 12 CFR 1026.5 (Regulation Z, timing of periodic statements)
• eCFR: 12 CFR 1026.54 (limitations on imposing finance charges)