How to prove cash tips for the No Tax on Tips deduction

Card tips leave a trail. Cash tips don't. That's the whole problem with substantiating the No Tax on Tips deduction for 2025: the IRS expects you to self-report qualified tips,¹ but the part most people are least sure about is the cash.

There's no magic IRS-approved cash tip receipt. There's only what you can show, kept consistently, dated, and corroborated by other things that already exist. Here's a system that actually works.

The principle: contemporaneous + corroborated

Two words. Contemporaneous means kept at the time, not reconstructed. Corroborated means other independent records line up with it.²

Cash tips that were logged the night they happened, on a shift the schedule shows you worked, in a window where the venue's own sales spiked, are very different from a spreadsheet number you typed in the following March.

What to log for cash tips, every shift

• The date and shift.
• Cash tips received — separately from card tips.
• Cash tips paid out as tip-out (if applicable).
• Hours worked.
• Notes, when relevant — a private event, a banquet, a slow night.

Don't combine cash and card. The whole point is that the cash number stands on its own and you can defend it.

Corroborating evidence the IRS already trusts

• Schedules and timesheets — you worked the shifts you claim.
• Bank deposits — cash deposited soon after a shift, in a pattern that matches what you logged.
• POS reports — your venue's nightly sales numbers correlate with your tip totals.
• Card-tip totals from W-2 Box 7 — if your reported number is consistent with the share of cash you typically see, the cash number reads as honest.³

Common mistakes

• Estimating monthly instead of daily. "I average $X in cash per shift × Y shifts" is exactly the kind of reconstruction the IRS treats as weak.
• Combining cash and card. Loses the structure that makes the number defensible.
• Logging zeros for cash on shifts you worked. If you genuinely got no cash, log zero — but a year of zeros at a venue where cash is normal looks worse than honest small numbers.
• Depositing in irregular lump sums. Frequent small deposits read better than monthly cash drops.

The minimum viable system

One: log cash tips at the end of every shift, separately from card. Two: deposit cash on a consistent cadence (weekly works). Three: keep your shift schedule. That's the audit-survivable minimum.

If you want to skip the spreadsheet, an app like Shiftips does steps one and three for you and gives you a year-end export you can hand to a tax pro.

General information, not tax advice. Cash income is sensitive — talk to a tax professional about your specific situation before relying on any system, including this one.