Material & Subbie Markup

Markup Calculator Australia

Work out your material markup percentage, profit margin, and final quote price — including GST.

Tradie Markup Calculator

Quote Details

$
The total raw cost of materials, supplier items, or subcontracted hire.
%
The profit percentage you want to make on the total sale price.
Quick Margin Presets

Material & Job Markup Guide for Tradies

What Is Markup and Why Does It Matter for Tradies?

In business terms, markup is the extra amount you add on top of the wholesale cost of materials or services to determine your selling price. For example, if a sparky buys a switchboard for $500 and quotes the client $750 for it, the markup is $250.

Many self-employed tradies underquote because they simply pass material costs through at cost price, or add a flat $10 or $20 "for petrol." In reality, material markup covers essential business expenses that your hourly labour rate might not account for:

  • Admin & Sourcing Time: Time spent listing materials, ordering online, driving to the trade desk, and picking them up.
  • Warranty & Liability: If a pump or downlight you supplied fails within the warranty period, you have to spend time replacing it. Your markup acts as a risk premium.
  • Cash Flow Financing: When you purchase materials upfront on your trade account, you are effectively financing the client's project until they pay your invoice.
  • Handling & Storage: Sourcing, loading, securing, and transporting heavy building materials in your ute requires physical effort and storage capacity.

Markup vs Margin — What's the Difference?

This is where many tradies get caught out. While both terms describe the relationship between cost and sell price, they measure different things:

  • Markup: Measured relative to your cost price. It answers: "How much did I add to my wholesale cost?"
  • Profit Margin: Measured relative to your sell price. It answers: "How much of the total invoice is profit?"
Markup % = (Profit ÷ Cost Price) × 100
Margin % = (Profit ÷ Sell Price) × 100

Let's look at why this difference matters. If you buy a bathroom vanity for $1,000 and want a 30% margin, you might make the mistake of adding a 30% markup, charging the client $1,300.

However, a sell price of $1,300 with a cost of $1,000 only yields a 23.1% profit margin ($300 profit divided by $1,300 sell price). To hit a true 30% margin, you need to apply a 42.86% markup, making the sell price $1,428.57.

How Much Should Tradies Mark Up Materials?

There is no single "correct" markup rate. The right percentage depends on the trade, material type, project volume, and how easily a client can check prices on Google or Bunnings.

Below is a typical guide to markup and margin targets across different trades in Australia:

TradeTypical Material MarkupTypical Profit MarginNotes & Strategy
Electrician (Sparky)25% – 50%20% – 33%Higher markups on switches, cables, and minor switchboard parts.
Plumber25% – 45%20% – 31%Pipes, brass fittings, and valves have solid margins. Hot water units are lower.
Carpenter (Chippy)15% – 35%13% – 26%Lower markups on framing timber; higher on custom fixings and hardware.
Painter20% – 40%17% – 29%High paint volume. Covers transport and color selection time.
Tiler15% – 30%13% – 23%Markup applies to screed, adhesive, and grout.
Builder / Construction15% – 30%13% – 23%Higher wholesale buying power offsets lower markup percentage.

How to Calculate Your Markup Step-by-Step

  1. Step 1: Determine Your GST-Exclusive Cost Price — Start with the net cost you pay the supplier (e.g. $1,000 ex GST).
  2. Step 2: Choose Your Desired Profit Margin — Target a margin percentage (e.g. 30%).
  3. Step 3: Convert Margin to Markup — 30% margin requires 42.86% markup (30 ÷ (100 - 30) × 100).
  4. Step 4: Calculate Selling Price (ex GST) — $1,000 × 1.4286 = $1,428.57 (ex GST).
  5. Step 5: Apply GST (10%) — $1,428.57 × 1.10 = $1,571.43 (inc GST). Use our Invoice Generator to quickly generate client-ready tax invoices.

GST and Markup — How It Works for Australian Tradies

GST can confuse your markup math if you aren't careful. Follow these essential accounting practices:

  • Always calculate using ex-GST figures: Base your markup on what the supplier charges you before GST. Check out our Australian GST Calculator to easily calculate 10% GST additions or removals.
  • Apply markup to the net cost: Apply your markup to the net cost. A 40% markup on $100 becomes $140 ex GST.
  • Add GST to the end: Add 10% GST to your final sell price ($154 inc GST quote).

Common Markup Mistakes Tradies Make

  • Ignoring minor consumables: Screws, tape, adhesive, sealant, and cable ties add up. Charge a flat consumables fee ($15 to $50 per job).
  • Using a flat markup for all items: Use tiered markups (lower markup on expensive appliances, higher on cheap parts).
  • Forgetting subcontractor super & overheads: If hiring subbies, ensure you cover their subcontractor super obligations when marking up their rates.
  • Absorbing material wastage: Factor in 5% to 15% wastage for timber, drywall, and tiles.

Frequently Asked Questions

Everything Australian tradies ask about hourly rates