How to Graduate from Alt-Doc to Full-Doc Home Lending

Switching from an alt-doc to a full-doc loan means refinancing from a higher-cost, flexible self-employed product into a mainstream home loan based on full financial documentation. Done at the right time, this can cut your rate, improve features, and expand your lender options. The key is knowing when you’re genuinely ready and how to execute the switch without disrupting your business or household cashflow.

In simple terms: if your business is now stable, you have two clean years of tax returns, and your loan-to-value ratio (LVR) has improved, you’re probably closer to full-doc than you think.

A clear path from alt-doc to full-doc lending starts with stable income and clean paperwork.

1. What “graduating to mainstream lending” actually means

1.1 Quick definitions: alt-doc vs full-doc

Alt-doc (alternative documentation) loans are designed mainly for self-employed borrowers who can’t, or don’t want to, prove income using standard payslips and fully up-to-date financials. Instead, income might be verified with:

• BAS statements
• Business bank statements
• An accountant’s declaration

Alt-doc loans are legitimate, but they usually come with:

• Higher interest rates
• Tighter maximum LVRs (often 80% or less)
• Stricter policy in some areas (e.g. credit history)

Full-doc loans are the mainstream products most PAYG employees use. For self-employed borrowers, full-doc usually means providing:

• 2 years of personal tax returns
• 2 years of business tax returns and financials
• Notices of Assessment from the ATO

In return, you get access to the sharpest pricing and the widest range of big-bank and non-bank options.

For a refresher on the differences and when each path makes sense, see Choosing the right documentation pathway for your next home loan.

1.2 Why you probably started on alt-doc

Most self-employed borrowers land in alt-doc because:

• The business was young and financials were patchy.
• You were reinvesting heavily and minimising taxable income.
• Your accountant hadn’t finalised tax returns yet.
• You needed to move quickly on a purchase.

That was a valid trade-off: pay a bit more in interest to get the deal done. But once your business matures and your paperwork catches up, staying in alt-doc can become expensive dead weight.

1.3 What “graduation” actually changes

Graduating from alt-doc to full-doc typically means:

1. Lower interest rate – often 0.50–1.50 percentage points less, depending on lender and profile.
2. Better loan features – offsets, extra repayments, more flexible redraw, sharper investment options.
3. More lender competition – you’re no longer tied to a niche set of alt-doc providers.
4. Stronger negotiation power – you can play mainstream lenders off against each other.

That combination is where the real savings happen.

2. When is it worth switching from alt-doc to full-doc?

You don’t switch just because it’s possible; you switch when the numbers and risk justify the time and cost.

2.1 Core readiness triggers

You’re likely ready to consider a switch when most of these apply:

• Two years of lodged tax returns showing stable or rising income.
• Business at least two years old (often longer for more complex structures).
• LVR at or below 80% – either from paying down debt or property growth.
• Clean repayment history on your current loan and major debts for the past 12 months.
• No unresolved ATO arrears or, if present, on a formal payment plan.

If this sounds like you, your situation is very different to when you first went alt-doc.

2.2 A worked savings example

Imagine:

• Loan amount: $750,000
• Remaining term: 25 years
• Current alt-doc rate: 7.39% p.a. (P&I)
• Potential full-doc rate: 6.09% p.a. (P&I)

Indicative monthly repayments:

• At 7.39%: about $5,419 per month
• At 6.09%: about $4,842 per month

That’s a saving of roughly $577 per month, or around $6,900 per year.

Over five years, even after allowing for a few thousand dollars in refinance costs, you’re potentially tens of thousands better off in interest.

Remember APRA’s 3% serviceability buffer: lenders will test your capacity at a rate around 3 percentage points higher than the actual rate. A stronger income story is what lets you pass this test and access that lower rate.

2.3 The real decision test

Switching makes sense if:

1. Net savings after costs are material (many people aim for at least $2,000–$3,000 ahead over three years as a baseline).
2. Cashflow impact is positive – lower monthly repayments or similar repayments on a shorter term.
3. You’re not giving up flexibility you actually use, like genuine interest-only terms on investment loans.

For a deeper look at how to weigh costs versus savings, see Refinancing Costs, Risks and Process: A Practical Australian Guide.

Alt-doc and full-doc loans serve different purposes; the trick is knowing when to switch.

3. Alt-doc vs full-doc: how do they really compare?

Here’s a simplified comparison. Actual figures vary by lender and your profile, but the differences in structure and cost are real.

The goal isn’t to demonise alt-doc. It’s a tool. The point is recognising when that tool has done its job and a different one now makes more sense.