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Calculate tip, tax and split the bill in one step

This free tip calculator works out the tip amount, grand total and per-person share in real time as you type. Enter the bill, choose a tip percentage with the preset buttons (15%, 18%, 20% or 25%) or dial in a custom amount with the slider, set how many people are splitting, and every figure updates without a page reload — no sign-up required.

Tax is handled separately: enter an optional tax percentage and the tool calculates the tip on the pre-tax subtotal (the US standard) while showing the tax as its own line. A round-up option turns any result into a clean whole-dollar amount. Everything runs locally in your browser — your numbers are never sent anywhere. No account, no ads, no install.

The tip formula — and the mental math tricks

The core tip formula is: Tip = Bill × (Tip% ÷ 100). A 20% tip on a $75 bill is $75 × 0.20 = $15, making the grand total $90. Splitting among 4 people: $90 ÷ 4 = $22.50 each.

For quick mental math, the 20% trick is worth memorising: move the decimal one place to the left (10%) and double it. On a $60 bill, 10% is $6, doubled is $12 — your 20% tip in under three seconds. For 18%: take 10%, find 1%, multiply that by 8, then add both. This gratuity calculator handles every variation without the arithmetic.

Tip percentage guide: 10%, 15%, 18%, 20% and 25%

In the United States, tipping norms have shifted upward over the past decade. A practical reference: 10% signals real disappointment. 15% was once the standard and is now considered barely adequate. 18% is the current baseline for decent service — many restaurant checks print 18% as one of the suggested amounts. 20% is the widely expected norm for good table service and the easiest percentage to calculate mentally. 25%+ is for exceptional service or a meaningful token of gratitude.

For counter service or fast-casual restaurants, tipping is genuinely optional — tip jars exist but there's no social expectation. The quick preset buttons above cover the most common percentages; tap any to update the result instantly.

How to split a restaurant bill fairly

The rule for group dinners: calculate the tip first, then divide. That way everyone covers their fair share of the gratuity, not just the food. Formula: Grand total = Bill + Tip, then Per person = Grand total ÷ Diners. On a $160 bill with a 20% tip and 4 people: $160 + $32 = $192, then $192 ÷ 4 = $48 each.

The stepper adjusts the number of people from 1 to any group size. For a clean amount when paying with cash, use the Round up option to bump each person's share to the nearest whole dollar. Apps like Splitwise are useful for tracking ongoing group expenses, but for splitting a single check at the table, this calculator is faster — no login, no setup.

Tipping by service type — restaurant, delivery, hair, nails

Tipping customs vary significantly by context. Sit-down restaurants: 18–20% on the pre-tax subtotal, 15% for poor service, 25%+ for exceptional. Bars: $1–2 per drink for simple orders, 15–20% on a tab. Food delivery: $3–5 minimum or 15–20%, more in bad weather or for large orders. Rideshare (Uber, Lyft): 15–20% of the fare. Hair salon or barber: 15–25% of the service. Nail salon: 15–20%, more for elaborate work. Hotel housekeeping: $2–5 per night. Tattoo artists: 15–25% per session.

When in doubt for any personal service, 18–20% is a safe baseline. Enter any charge in the bill field above and the same preset buttons apply — this isn't just a restaurant tip calculator, it works for any service.

Pre-tax or post-tax tipping — which is correct?

The US standard is to calculate the gratuity on the pre-tax subtotal, not the full post-tax amount. Tax is a government charge, not a measure of service, so technically the server shouldn't receive a percentage of it. In practice the difference is small: on a $50 meal with 8% tax, tipping 20% on pre-tax ($10) versus post-tax ($10.80) is just $0.80.

Most diners tip on the printed total for simplicity. If you prefer the technically correct approach, enter the tax percentage in the Tax % field — the calculator shows the tip on the subtotal and breaks out the tax as a separate line, so the math is transparent.

Free, private and instant — no upload, no account

There is nothing to install and nothing to sign up for. This bill splitter and tip calculator runs entirely in your browser — your bill amount, tip percentage and split details are never uploaded to a server or shared with anyone. Unlike Splitwise, which requires an account and stores your expense history on its servers, this tool leaves zero trace after you close the tab.

Bookmark it and reach for it the next time the check arrives. Works on iPhone, Android, desktop — any device with a browser.

A brief history of tipping — from English coffeehouses to American law

Tipping is older than the United States. The practice emerged in 16th- and 17th-century England, where patrons of coffeehouses and taverns would pass small coins to workers for swift attention. The word "tip" is often claimed to be an acronym for "To Insure Promptitude" — though linguists regard that as folk etymology invented after the fact. The more likely explanation is that it derives from the slang verb "to tip," meaning to give or pass something small, which appears in thieves' cant from the same era.

Tipping crossed the Atlantic in the late 19th century, imported by American travelers who had encountered it in Europe. It was not immediately welcomed. Between 1900 and 1915, a genuine anti-tipping movement took hold: six US states — Washington, Mississippi, Tennessee, Arkansas, South Carolina, and Iowa — passed laws banning gratuities, viewing them as un-democratic, demeaning to workers, and corrupting to recipients. Those laws were all repealed by the 1920s, in large part because of Prohibition. When the Volstead Act shuttered saloons in 1920, restaurants lost a major revenue stream. Owners responded by cutting wages, and tipping quietly shifted from an optional courtesy into a structural expectation that subsidised the labour bill. That wage-subsidy model has never fully unwound.

Federal law reflects this history. The tipped minimum wage under the Fair Labor Standards Act has sat at $2.13 per hour since 1991 — the longest freeze of any federal wage floor. Employers are required to make up the difference if tips don't bring a worker to the standard $7.25 federal minimum, but enforcement is inconsistent and workers must report shortfalls. Seven states have eliminated the tipped sub-minimum entirely, requiring tipped workers to receive the full state minimum wage before gratuities. The rest of the country still operates on the Prohibition-era model: tips are not a bonus — they are the wage.

Tipping norms around the world — where to tip, how much, and where not to

Tipping norms vary so dramatically across countries that the same behaviour that earns gratitude in New York can cause genuine offence in Tokyo. In the United States, sit-down restaurant service carries an expectation of 15–20%, taxi and rideshare drivers 15–20%, hotel housekeeping $2–5 per night (left daily, since room cleaners often rotate), bellhops $1–2 per bag, hairdressers 15–25%, food delivery drivers $3–5 minimum or 15–20% of the order, and spa or massage therapists 15–20%. Tour guides represent one of the widest ranges: $5–10 per person for a group tour, $20 or more for a private guide. The unifying principle in the US is that tips constitute a meaningful fraction of take-home income across all these roles.

The picture looks very different elsewhere. In the United Kingdom, a 10–12.5% tip is customary in restaurants — but only when a service charge hasn't already been added to the bill, which it often is. Australians tip approximately 10% when they're pleased with service, but there is no social expectation either way. Japan is the most striking contrast: tipping is considered rude, even insulting, in most contexts. It implies the worker cannot be trusted to do their job without a financial incentive; restaurant staff have been documented chasing customers down the street to return coins left on the table. South Korea and mainland China share similar cultural norms, though international tourist areas in China have grown more accustomed to gratuities in recent years. In much of continental Europe — France, Germany, Spain, Italy — rounding up the bill or leaving a small amount (5–10%) is appreciated but not expected, and a full 20% tip would strike most locals as extravagant.

For international travel, the safest rule is to research the local tipping convention for each service category before you arrive. A tip that signals generosity in one country signals ignorance in another, and in Japan it can signal something worse. When uncertain, observe what locals do rather than exporting American norms.

The psychology of tipping — what actually drives tip size

Research consistently finds that tip size correlates only weakly with objective service quality. What it correlates with strongly is the social texture of the interaction — small non-verbal and environmental cues that have nothing to do with whether the food arrived promptly. In a widely cited field study, servers who drew a smiley face on the check saw tips increase by roughly 18%; writing "Thank you" by hand produced a 16% uplift (Guéguen & Legoherel, 2000). A brief, appropriate touch on the shoulder or arm when presenting the bill was found to increase tips by around 20% in a separate field experiment (Mitchell, 1984) — an effect attributed to the warmth and personalisation the gesture conveys.

Environmental factors matter too. Studies have found that sunny weather increases tip percentages even in windowless restaurants — patrons who reported pleasant weather on entry were in a better mood and tipped more generously, independent of the experience inside. The implication is troubling for any meritocratic theory of tipping: a server's income can swing based on cloud cover. More recently, tablet-based tip prompts at the point of sale have dramatically changed the calculus. Field experiments found that digital screens suggesting 20%, 25% and 30% — rather than the older 15%, 18%, 20% — shifted average tip percentages upward by roughly 20%, simply by anchoring expectations higher. Customers rarely override the suggested defaults.

The spread of tip prompts beyond sit-down restaurants into counter service, coffee shops and fast food has generated its own term: "tip creep" or "guilt tipping." A 2023 Mastercard survey found 30% of Americans reported feeling pressured by tip prompts at counter-service establishments where there is no table service and no historical tipping norm. The psychological mechanism is identical: a screen presenting three high options with "No Tip" as a fourth requires an active opt-out, and social discomfort around being seen to decline in public nudges many people toward compliance. Understanding this pressure is part of using any gratuity calculator with intention — the question of how much to tip is genuinely yours to decide, not the payment terminal's.

Tips and taxes — what employees, employers and the IRS each owe

In the United States, tips are taxable income. Employees who receive more than $20 in tips in any calendar month are legally required to report the total to their employer by the 10th of the following month using Form 4070. The employer then includes those reported tips on the employee's W-2 at year-end. Cash tips handed directly to a worker — without appearing in any electronic record — are subject to exactly the same reporting obligation, though underreporting is widespread. The IRS has responded with formal compliance programs: the Tip Rate Determination Agreement (TRDA) and the Gaming Industry Tip Compliance Agreement (GITCA) establish industry-specific tip rates that, when agreed to, provide audit protection for participating employers.

Employers also have skin in the game. They owe their share of FICA (Social Security and Medicare) taxes on every dollar of tips their employees report — which creates a direct cost that scales with tip volume. Congress partially offset this through the FICA Tip Credit (IRC §45B / Form 8846), which allows restaurant and food-service employers to claim a federal tax credit for FICA taxes paid on tip income above $5.15 per hour. The credit doesn't eliminate the employer's cost but meaningfully reduces it, which is one reason many restaurant operators prefer tips to wage increases — tips come with a partial federal subsidy that a straight wage hike does not.

The IRS tip allocation rule adds another layer: if a food or beverage employee reports tips that amount to less than 8% of their share of the establishment's gross sales, the employer is required to allocate the shortfall and report it on the employee's W-2 — even though the employee may not have actually received that amount. The employee then must prove otherwise if audited. In the 2024 US election cycle, proposals to exempt tips from federal income tax entirely gained bipartisan momentum; as of mid-2025 the policy remained under active legislative debate, with significant implications for federal revenue and for whether the tipped minimum wage structure would survive without the implicit subsidy that income-tax liability currently provides.