California penny rounding law

Mandatory symmetric rounding of in-store cash totals from July 1, 2027. Totals of 2¢ or less not rounded. Cash refunds rounded too.

Updated · Based on official sources listed below

Required
Cash totals must be rounded
July 1, 2027
Takes effect
No
Customer sign required by law
Unrounded
Sales tax is figured on the pre-rounding price

Not in effect yet. California’s rounding law is not operative until July 1, 2027. Until then there is no statewide retail rounding rule. The calculator applies the current rule until July 1, 2027.

California cash rounding calculator

Enter a cash total, or item prices plus your sales tax rate. The result updates as you type.

What do you have?
Transaction
Only the methods the state allows are listed.
Shows the change due.

Turn on JavaScript to use the calculator. The rule: totals ending in 1, 2, 6 or 7 cents round down to the nearest nickel; 3, 4, 8 or 9 cents round up.

How each ending cent rounds under this rule

  1. …0¢…0¢same
  2. …1¢…0¢−1¢
  3. …2¢…0¢−2¢
  4. …3¢…5¢+2¢
  5. …4¢…5¢+1¢
  6. …5¢…5¢same
  7. …6¢…5¢−1¢
  8. …7¢…5¢−2¢
  9. …8¢…0¢+2¢
  10. …9¢…0¢+1¢

The rounding rule

From July 1, 2027, a merchant shall round a cash total: totals ending in 1, 2, 6 or 7 cents are rounded down, and totals ending in 3, 4, 8 or 9 cents are rounded up, to the nearest amount divisible by five. A total of 2 cents or less is not rounded. Collecting more than the rounded amount is prohibited.

Who it applies to

Every “merchant” selling goods or services at a physical location in California. State and local government are not merchants under the act; a separate law, SB 1005 (Ch. 321, Stats. 2026, Gov. Code § 6158), lets a city, county or other local agency round cash payments and cash refunds to the nearest five cents if its governing body adopts a resolution.

Customer notice

AB 1793 does not require a customer sign.

Make a printable California cash rounding sign.

Sales tax

The rounding adjustment is disregarded when computing any tax, fee or surcharge (Civ. Code § 1789.63). The CDTFA may adopt regulations. More on sales tax and cash rounding.

What is not rounded

Pennies, enforcement and safe harbors

The act does not address whether merchants must accept pennies.

Charging more than the rounded amount carries the remedies and penalties of Business and Professions Code § 12024.2 (overcharging). Merchants that comply have a safe harbor.

The law

LawAB 1793, Ch. 896, Stats. 2026 (Civil Code §§ 1789.60–1789.67)
SignedSeptember 30, 2026
EffectiveJuly 1, 2027 (operative July 1, 2027)
StatusLaw enacted, starts later

Checked against the sources below as of October 30, 2026. Compare other states in the state-by-state tracker.

Frequently asked questions

When do California stores have to start rounding?
July 1, 2027. AB 1793 was signed on September 30, 2026, but its operative date is July 1, 2027. After that, rounding cash totals is required, not optional.
Does California’s law apply to a 2-cent purchase?
No. The act does not round totals of 2 cents or less.
Does California's rounding apply to card payments?
No. Payments made entirely by check, electronic funds transfer, money order, credit or debit card, other electronic payment or cryptocurrency are not rounded. Only cash is rounded.

Sources

  1. California AB 1793 (2026), chaptered text, Ch. 896, Stats. 2026
  2. California AB 1793 bill history
  3. California SB 1005 (2026), Ch. 321, local agency cash rounding