To set up taxes and service charges in your POS, enter your local sales tax rate by jurisdiction, assign a tax category to every menu item, then create service charges and gratuities as separate line types so they are reported and taxed correctly. Test with sample tickets before you open, because a wrong tax setting repeats on every check until someone notices.
Why tax and charge settings deserve care
A tax error of even half a percent on $40,000 in monthly sales is $200 of liability that you either overcollect from guests or pay out of your own pocket. Service charges add another layer, since some states tax them and some treat them as wages for tip purposes. Get this setup right once and your reports, your accountant and your tax filings all line up. For background, read Understanding Sales Tax for Restaurants.
Step 1: Confirm the rules with your state and city
Before touching the POS, confirm three things with your state revenue department or accountant:
- The combined rate for your address (state, county, city and any special district).
- Which items are taxable. Prepared food usually is. Grocery items, bottled retail goods or some takeout items may be treated differently.
- Whether mandatory service charges and delivery fees are taxable in your state.
Write the answers down. Your accountant will want the same record, and when to hire an accountant or bookkeeper is worth reading if you do not have one.
Step 2: Build your tax categories
Most restaurants need only a few categories. Create them first, then attach them to items in bulk.
| Category | Examples | Typical treatment |
|---|---|---|
| Prepared food | Entrees, appetizers, desserts | Taxable |
| Alcohol | Beer, wine, cocktails | Taxable, sometimes extra rate |
| Retail | Bottled sauces, merchandise | Rules vary |
| Gift cards | Card sales | Not taxable at sale |
| Service charge | Large party fee | Check your state |
Do not leave any item on a default category. Run an item list and sort by tax group to catch strays. If you use modifiers that carry a price, such as add-on proteins, confirm they inherit the parent tax; see How to Set Up Menu Modifiers in Your POS.
Step 3: Add service charges and gratuity correctly
A gratuity is optional or customary and belongs to employees as tips. A service charge is mandatory and, depending on your state, may be treated as house revenue with its own tax and payroll rules. Name them differently in the POS so reports never mix them.
For large parties, an automatic 18-20% charge is common. Print the policy on the menu, and tell the guest before they order. Pair this with the process in How to Set Up Tip Reporting and Payouts in Your POS and the legal guidance in How to Handle Tip Pooling and Tip Credits Legally.
Takeaway: Keep tax categories simple, keep gratuity and service charge as separate line types, and test every combination before opening day.
Step 4: Handle takeout, delivery and online orders
Online orders must use the same tax rules as dine-in unless your state says otherwise. Delivery fees, packaging fees and small-order fees are the most common mistakes. Set each as its own line and confirm taxability. Review How to Set Up Online Ordering for Your Restaurant so website orders and in-house orders produce the same totals.
Step 5: Test with sample tickets
Ring five tests and compare against a hand calculation:
- One taxable entree and a soda.
- A split check with a shared appetizer.
- A party of eight with auto-gratuity.
- A gift card purchase.
- A discounted ticket, to confirm tax is calculated after the discount.
Print each ticket and check the math. Cobblestone POS lets you set tax categories, service charges and gratuity rules in one free, all-in-one system with no monthly fee, which keeps independent owners from paying extra for add-on modules that pricier platforms charge.
Step 6: Reconcile every month
At month end, compare the tax collected in your POS reports to the amount you filed. Use the process in How to Do a Monthly Financial Close and verify daily totals in How to Run End-of-Day Close-Out and Cash Reconciliation in Your POS. Small, regular checks catch rate changes, which happen when cities adjust local rates in January or July.
When rates change
Set a calendar reminder for early December and June to check for rate updates. Change the rate on the effective date, never before, and keep a note of when you did it. If you operate a second site or a food truck in another jurisdiction, give each location its own tax profile rather than sharing one, so the numbers stay clean.