What rounding everything up would be worth
Two cents a cash sale. Quantified here because the number is the argument — and no jurisdiction has adopted it for retail.
Net effect per cash transaction
+2¢
Rounding every cash total up is worth 2.00¢ per transaction, or $20.00 per thousand cash sales. That is a price increase charged only to cash customers, and no jurisdiction has adopted it for retail. It is here to show the size of the prize, which is small.
Transactions
100
Rounded up
80
Rounded down
0
Unchanged
20
Per 1,000 cash sales: $20.00
| Price | Exact total | Due in cash | Delta |
|---|---|---|---|
| $0.01 | $0.01 | $0.05 | +4¢ |
| $0.02 | $0.02 | $0.05 | +3¢ |
| $0.03 | $0.03 | $0.05 | +2¢ |
| $0.04 | $0.04 | $0.05 | +1¢ |
| $0.05 | $0.05 | $0.05 | 0¢ |
| $0.06 | $0.06 | $0.10 | +4¢ |
| $0.07 | $0.07 | $0.10 | +3¢ |
| $0.08 | $0.08 | $0.10 | +2¢ |
| $0.09 | $0.09 | $0.10 | +1¢ |
| $0.10 | $0.10 | $0.10 | 0¢ |
| $0.11 | $0.11 | $0.15 | +4¢ |
| $0.12 | $0.12 | $0.15 | +3¢ |
| $0.13 | $0.13 | $0.15 | +2¢ |
| $0.14 | $0.14 | $0.15 | +1¢ |
| $0.15 | $0.15 | $0.15 | 0¢ |
| $0.16 | $0.16 | $0.20 | +4¢ |
| $0.17 | $0.17 | $0.20 | +3¢ |
| $0.18 | $0.18 | $0.20 | +2¢ |
| $0.19 | $0.19 | $0.20 | +1¢ |
| $0.20 | $0.20 | $0.20 | 0¢ |
| $0.21 | $0.21 | $0.25 | +4¢ |
| $0.22 | $0.22 | $0.25 | +3¢ |
| $0.23 | $0.23 | $0.25 | +2¢ |
| $0.24 | $0.24 | $0.25 | +1¢ |
| $0.25 | $0.25 | $0.25 | 0¢ |
| $0.26 | $0.26 | $0.30 | +4¢ |
| $0.27 | $0.27 | $0.30 | +3¢ |
| $0.28 | $0.28 | $0.30 | +2¢ |
| $0.29 | $0.29 | $0.30 | +1¢ |
| $0.30 | $0.30 | $0.30 | 0¢ |
| $0.31 | $0.31 | $0.35 | +4¢ |
| $0.32 | $0.32 | $0.35 | +3¢ |
| $0.33 | $0.33 | $0.35 | +2¢ |
| $0.34 | $0.34 | $0.35 | +1¢ |
| $0.35 | $0.35 | $0.35 | 0¢ |
| $0.36 | $0.36 | $0.40 | +4¢ |
| $0.37 | $0.37 | $0.40 | +3¢ |
| $0.38 | $0.38 | $0.40 | +2¢ |
| $0.39 | $0.39 | $0.40 | +1¢ |
| $0.40 | $0.40 | $0.40 | 0¢ |
Showing the first 40 of 100. The totals above cover all of them.
Run your own numbers
Use the form on the home page, or call the API or MCP server. This page is also available as markdown.
Related examples
Not legal, tax, or accounting advice. Federal rounding legislation was not enacted as of September 2026, state law varies and is changing quickly, and a rounding practice that is lawful in one state may not be in another. This computes arithmetic under a rule you select; it does not tell you which rule applies to your business. Check your own state law and your own tax authority.