Portland is arguably one of the best food cities in America. It is also one of the hardest places to run a profitable restaurant.

Between the high local minimum wage, the price of ingredients, and the labyrinth of local taxes (Metro SHS, Arts Tax, City of Portland Business Tax), “breaking even” feels like a victory.

But “breaking even” is not a business plan.

In the restaurant industry, you cannot wait until the end of the month to look at your Profit & Loss statement. By then, it’s too late. You need to track your numbers weekly, if not daily. Here is the financial framework we use to help Portland restaurateurs move from “surviving” to “thriving.”

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TL;DR: The Restaurant Profitability Cheat Sheet

The Metric	The Goal	Why It Matters
Prime Cost	< 60%	Total COGS + Total Labor. If this is over 60%, you are losing money.
Food Cost	28–32%	The cost of ingredients divided by food sales.
Pour Cost	18–22%	The cost of beer/wine/liquor divided by alcohol sales.
FICA Tip Credit	Tax Savings	A federal tax credit that pays you back for payroll taxes on tips.
3rd Party Fees	Tracked Separately	UberEats takes ~30%. If you count this as “Marketing,” you are blinding yourself.

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1. The “Prime Cost” Rule (The Holy Grail)

If you only track one number, make it this one.

Prime Cost = Cost of Goods Sold (COGS) + Total Labor Cost.

Most restaurant owners look at Food Cost and Labor separately. That is a mistake.

• You might have a low food cost (25%) because you buy raw ingredients.
• But that requires high labor cost (35%) to prep those ingredients.
• The Magic Number: Your combined Prime Cost should be under 60% of total sales. If you are at 65% or 70%, your rent and overhead will eat the rest of your profit, leaving you with zero.

How Bridgetown Helps: We set up your Chart of Accounts to automatically calculate Prime Cost every week, so you spot the trend before payroll is due.

2. The “Toast” Trap (Phantom Revenue)

If you use a modern POS like Toast, Square, or Clover, your bank deposits are lying to you.

The Scenario:

You sell a $100 dinner.

• Guest adds a $20 tip.
• Total charged: $120.
• Toast takes their 3% fee ($3.60).
• Bank Deposit: $116.40.

The Accounting Mistake:

If you connect your bank feed to QuickBooks and simply record that $116.40 as “Sales,” you are wrong.

1. You understated your revenue (it was $100, not $116.40).
2. You failed to record the liability of the tip (that $20 belongs to the server, not you).
3. You missed the expense deduction for the merchant fee ($3.60).

The Fix: We integrate your POS directly into the accounting software to record the Gross Sales and separate out the tips and fees. This keeps your books audit-proof.

3. The FICA Tip Credit (Free Money?)

This is the single most overlooked tax break in the industry.

As an employer, you have to pay payroll taxes (Social Security & Medicare) on your employees’ wages and their tips.

• The Form 8846 Credit: The IRS allows you to claim a tax credit for the Social Security and Medicare taxes you paid on employee tips that exceed the federal minimum wage ($5.15/hr).
• Since Oregon’s minimum wage is significantly higher than federal, almost all tips in Portland are eligible for this credit.

The Value: For a busy restaurant, this can mean thousands of dollars in direct tax credits (dollar-for-dollar reduction of your tax bill) every year. If your current bookkeeper isn’t tracking this, they are costing you money.

4. The “DoorDash” Accounting Nightmare

Third-party delivery apps (DoorDash, GrubHub, UberEats) are a necessary evil. But their accounting is messy.

• The Trap: UberEats collects $100 from the customer, keeps $30 as a “Marketing Fee,” and deposits $70 into your account.
• The Wrong Way: Recording $70 as “Sales.”
• The Right Way: Recording $100 as “Sales” and $30 as “Merchant Fees” or “Delivery Commission.”

Why it matters: If you record only the net amount ($70), your “Food Cost Percentage” will look artificially high (because you used $100 worth of food but only recorded $70 in sales). This ruins your data and makes it impossible to price your menu correctly.

5. Inventory: Counting is Boring, But Essential

You cannot calculate accurate COGS if you don’t count your inventory.

Buying $5,000 of steaks on January 30th does not mean you “spent” $5,000 in January. It means you have an Asset of $5,000 sitting in the walk-in.

• The Adjustment: We move that value from “Asset” to “Cost of Goods Sold” only when you actually sell the steaks.
• Why? This prevents your P&L from looking like a rollercoaster (huge loss in weeks you buy food, huge profit in weeks you don’t). It smooths out your margins so you can see the truth.

6. The “Service Charge” vs. “Tip” Trap

Portland is leading the charge in fair wages, with many restaurants switching from voluntary tipping to a mandatory 20% Service Charge.

The Warning: The IRS treats “Tips” and “Service Charges” completely differently.

• Tips: Money belongs to the employee. You are just the pass-through. You generally don’t pay business tax on this cash (though you pay payroll tax).
• Service Charges: Money belongs to the restaurant. This is Revenue.
  • The Trap: If you treat Service Charges as “Tips” in your payroll software (Gusto), you might be under-reporting your Gross Receipts for the City of Portland Business License Tax.
  • The Fix: We map your POS so “Service Charges” flow to a specific Income account, ensuring your tax return matches your bank deposits.

7. Menu Engineering (Stars vs. Dogs)

Bookkeeping isn’t just about taxes; it’s about building a better menu. Once we have your “Plate Cost” accurate, we can categorize every item on your menu into four buckets:

1. Stars: High Profit, High Popularity. (Keep these!)
2. Plowhorses: Low Profit, High Popularity. (Raise the price slightly).
3. Puzzles: High Profit, Low Popularity. (Rebrand or move them on the menu).
4. Dogs: Low Profit, Low Popularity. (Kill them immediately).

Bridgetown’s Value: We don’t just send you a P&L. We help you identify the “Dogs” that are eating your margins so you can print a new, more profitable menu next week.

8. The Gift Card Liability (Free Money?)

When you sell a $100 gift card in December, you did not make $100.

The Mistake: Recording gift card sales as “Sales Income” immediately.

• The Reality: You have a Liability (a debt) to the customer. You owe them $100 worth of food.
• The Fix: We record the cash as “Gift Card Liability” (Balance Sheet). We only move it to “Sales” (P&L) when the guest actually comes in and eats.
• Why it matters: If you book it all as income in December, you will pay taxes on money you haven’t earned yet. And when January is slow (but people are redeeming cards), your P&L will look like a disaster because you have costs (food/labor) but “zero” revenue.

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Stop Guessing Your Margins

Running a restaurant is hard enough without flying blind financially. You need to know if that new burger is profitable today, not when your tax return is filed next year.

At Bridgetown Bookkeeping, we specialize in hospitality accounting. We know how to handle Toast integrations, we track the FICA Tip Credit, and we help you keep your Prime Cost in the “Safe Zone.”

Ready to see where your money is actually going?