18% Tip on $40 | Tip & Total
A 18% tip on $40 is $7.20, for a total of $47.20.
For a $40 dinner check, servers typically expect $8.00 at 20% — the table-standard choice. 18% is the traditional sit-down default when the service was fine and the bill uncomplicated.
You can compare this 18% rate against 15%, 18%, 20%, and 25% in the table and calculator below.
Tip amounts on $40
| Tip % | Tip amount | Total with tip |
|---|---|---|
| 10% | $4.00 | $44.00 |
| 15% | $6.00 | $46.00 |
| 18% — your selection | $7.20 | $47.20 |
| 20% | $8.00 | $48.00 |
| 25% | $10.00 | $50.00 |
Watch out: tips calculated after tax
Many receipts print their suggested tip on the after-tax total. With a 9% sales tax, a 18% tip on $40 comes to $7.85 instead of the correct $7.20 — about $0.65 more, which is really 19.6% of your pre-tax bill.
On other percentages: 15% → $6.54, 18% → $7.85, 25% → $10.90.
Tip Calculator
Tip percent
Tip
$7.20
Total with tip
$47.20
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Reviewed by TipTruth TeamUpdated 2026-08-21