Certificate IV vs Diploma of Leadership

Published: September 24, 2026

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Certificate IV in Business vs Diploma of Leadership and Management

This article is written for international students. TDT Training Australia (CRICOS Provider Code 04446D) is a Registered Training Organisation offering both courses on this page to students on a student visa, studying on campus in Australia. The BSB40120 Certificate IV in Business is CRICOS course code 120502B. The BSB50420 Diploma of Leadership and Management is CRICOS course code 120503A.

If you're deciding between TDT Training Australia's two flagship business qualifications, here's the short version.

Quick answer

The BSB40120 Certificate IV in Business is a 26 week course that costs $6,300 and suits students who want a shorter, more affordable entry point into business and administration.

The BSB50420 Diploma of Leadership and Management is a 52 week course that costs $12,300 and suits students who want a higher-level qualification aimed at leadership and management roles.

Below, we've compared both courses side by side using the exact figures published on TDT Training Australia's international course pages, so you can see exactly where they differ before you apply.

Certificate IV vs Diploma: Side by Side

Here's how the two courses compare on the facts that usually matter most when choosing.

	BSB40120 Certificate IV in Business	BSB50420 Diploma of Leadership and Management
CRICOS course code	120502B	120503A
AQF level	Certificate IV	Diploma
Duration	26 weeks	52 weeks
Study load	Full time, on campus	Full time, on campus
Campus	Hallam, VIC	Hallam, VIC
Face-to-face hours	288 hours	576 hours
Independent study hours	240 hours	480 hours
Units of competency	12 (6 core, 6 elective)	12 (6 core, 6 elective)
Combined course fee	$6,300	$12,300
Payment plan	4 × $1,575	8 × $1,537.50
Entry requirements	Same for both courses (see below)	Same for both courses (see below)

Entry requirements are identical for both courses: you need to be 18 or older, have completed Year 12 or VCE (or equivalent), hold an IELTS 6.0 (General) result or equivalent no more than two years old, pass TDT Training Australia's LLND assessment, complete a pre-training interview, show basic Word, PowerPoint and Excel skills, and have a valid Unique Student Identifier.

Sources: TDT Training Australia, BSB40120 international course page · TDT Training Australia, BSB50420 international course page. Please check both live course pages before publishing, since fees and dates can change.

What Is the Certificate IV in Business?

The BSB40120 Certificate IV in Business is TDT Training Australia's entry-level business qualification. It runs for 26 weeks full time, on campus at Hallam.

It's built for people who want practical, job-ready business skills without committing to a full year of study.

What you study

The course has 12 units in total: 6 core units and 6 elective units.

Apply critical thinking to work practices
Use digital technologies to collaborate in a work environment
Build and maintain business relationships
Implement and monitor WHS policies, procedures and programs
Write complex documents
Apply communication strategies in the workplace

The elective units cover things like organising business meetings, undertaking project work, and developing your own work priorities.

Where it can lead

TDT Training Australia's course page lists these as possible occupational outcomes: Administrative Officer, Project Administrator, Office Coordinator, Customer Service Coordinator, Team Administrator, and Business Support Officer.

Job outcomes depend on your previous experience, your employer and the job market at the time. This course does not guarantee employment, a visa, permanent residency or a particular salary.

Source: TDT Training Australia, BSB40120 international course page.

What Is the Diploma of Leadership and Management?

The BSB50420 Diploma of Leadership and Management is TDT Training Australia's higher-level business qualification. It runs for 52 weeks full time, on campus at Hallam.

It's built for people who want to move into leadership, supervision or management, not just administrative support.

What you study

Like the Certificate IV, the Diploma has 12 units in total: 6 core units and 6 elective units.

Communicate with influence
Develop critical thinking in others
Lead and manage effective workplace relationships
Manage business operational plans
Develop and use emotional intelligence
Manage team effectiveness

The elective units cover things like managing business risk, developing administrative systems, and managing meetings.

Where it can lead

TDT Training Australia's course page lists these as possible occupational outcomes: Team Leader, Supervisor, Business Manager, Office Manager, Operations Coordinator, Project Coordinator, Department Manager, and Customer Service Manager.

Job outcomes depend on your previous experience, your employer and the job market at the time. This course does not guarantee employment, a visa, permanent residency or a particular salary.

Source: TDT Training Australia, BSB50420 international course page.

Which One Should You Choose?

There's no single right answer. It comes down to your budget, your timeline and where you want to end up.

Choose the Certificate IV if

You want a shorter, more affordable course, you're newer to business or admin work, or you want to test the waters before committing to a longer qualification.

Choose the Diploma if

You already have some work experience, you're aiming for a leadership or management role, or you want the higher AQF qualification level from the start.

Consider both if

You want to build up gradually. TDT Training Australia lists progressing from the Certificate IV into the Diploma as a direct study pathway.

A note on skilled migration

Some of the roles both courses list as occupational outcomes, such as office and project coordination roles, overlap loosely with occupations that appear on Australian Government skills lists from time to time. Whether any specific job counts for a skilled migration pathway depends on your own qualifications, work experience and a formal VETASSESS skills assessment, not on the course title alone. TDT Training Australia does not provide migration advice, so speak to a registered migration agent or the Department of Home Affairs if migration is part of your plan.

Can You Study Both, One After the Other?

Yes. TDT Training Australia's Certificate IV course page lists progressing to the BSB50420 Diploma of Leadership and Management as a further-study pathway once you finish.

Some students choose this route to spread out the cost and commitment, rather than enrolling straight into the Diploma.

StartInternational student

→

Certificate IVBSB40120, 26 weeks

→

DiplomaBSB50420, 52 weeks

→

Further study or workAdvanced Diploma or employment

Progressing this way still means completing the full Diploma, including its entry requirements. Approved Credit Transfer or Recognition of Prior Learning may reduce the units required, but this changes on a case by case basis.

Source: TDT Training Australia, BSB40120 international course page (further-study pathway).

Course Fees Compared

Both courses have the same fee structure: a tuition fee, a non-refundable enrolment fee, and a non-refundable materials fee.

Fee	Certificate IV (BSB40120)	Diploma (BSB50420)
Tuition fee	$5,750	$11,750
Enrolment fee (non-refundable)	$250	$250
Materials fee (non-refundable)	$300	$300
Combined total	$6,300	$12,300
Payment plan	4 × $1,575	8 × $1,537.50

Neither fee includes your laptop or software. You'll need your own device with Microsoft Office 365 or equivalent installed for either course.

The same additional charges apply to both courses: $100 per attempt for reassessment from the third attempt, $100 per week for late payment, and RPL fees of $250 for the application plus $500 per unit assessed.

Sources: TDT Training Australia, BSB40120 international course page · TDT Training Australia, BSB50420 international course page. Please check the live course pages before publishing, since fees can change.

Frequently Asked Questions

What's the main difference between the Certificate IV and the Diploma?

Mainly the AQF level, duration and fee. The Certificate IV is a 26 week course, while the Diploma is a 52 week, $12,300 higher-level qualification aimed at leadership and management.

Can I skip the Certificate IV and go straight into the Diploma?

Yes, as long as you meet the Diploma's entry requirements. The Certificate IV isn't a compulsory step, though TDT Training Australia lists it as one possible pathway into the Diploma.

Are the entry requirements different for each course?

No. Both courses have the same entry requirements: minimum age 18, Year 12 or VCE (or equivalent), IELTS 6.0 or equivalent, TDT's LLND assessment, a pre-training interview, basic digital skills, and a valid USI.

Which course leads to better job opportunities?

It depends on the role you're aiming for. The Certificate IV's listed outcomes are more administrative, such as Administrative Officer or Project Administrator, while the Diploma's listed outcomes are more supervisory, such as Team Leader or Business Manager. Neither course guarantees a job.

Do both courses run at the same campus?

Yes. Both are delivered full time, on campus, at TDT Training Australia's Hallam campus in Victoria.

What are the CRICOS course codes for each qualification?

The BSB40120 Certificate IV in Business is CRICOS course code 120502B. The BSB50420 Diploma of Leadership and Management is CRICOS course code 120503A. TDT Training Australia's CRICOS provider code is 04446D.

Ready to Apply?

CourseBSB40120 Certificate IV in Business

CourseBSB50420 Diploma of Leadership and Management

Job and visa outcomes depend on your experience, your employer and the job market at the time. This information does not promise you a job, a visa or a set wage, and TDT Training Australia does not provide migration advice. Figures on this page are drawn from TDT Training Australia's own international course pages, current as of 2026.

Chris Davis

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