One Doc Home Loans: Tradies With Mixed Income (2026)

Tradie reviewing subcontractor invoices and BAS statements at a workbench, planning a One Doc home loan application.

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SUB-CONTRACTOR INVOICES + SOLE TRADER REVENUE — HOW ONE DOC LENDERS READ A SPLIT INCOME FILE

One Doc Home Loans: Tradies With Mixed Income (2026)

Published 15 April 2026 · Reviewed 15 April 2026 · Nick Lim, FBAA Accredited Finance Broker · General information only

Quick Answer

Mixed-income tradies — subbie invoices on the books and sole trader jobs on the side — can use One Doc home loans, but the file reads cleanly only when both income streams are evidenced through the same accountant and the same trading entity. Split entities or undeclared sole trader cash are what stall the deal, not the mix itself.

A lot of working tradies don't fit one box. You might do three days a week as a subbie for a builder — invoiced to your ABN, paid into the business account — and then run the rest of your week direct to homeowners under your own name. Two income streams, one borrower. The bank PAYG channel won't touch it. The full-doc self-employed channel wants two years of perfect tax returns showing both. One Doc home loans sit in the middle — and for a tradie with a clean BAS history, that middle is usually the cleanest path.

The reframe matters. A One Doc lender isn't trying to verify every dollar. They're verifying that one document — typically an accountant's declaration or a recent BAS — supports the income figure you've declared. That works for mixed income only when both streams hit the same set of books. The moment subbie invoices flow into the business ABN and sole trader jobs are quietly cash, the lender has no visible pattern. The file stalls.

How a One Doc lender reads a mixed tradie file

The split-income read in plain English

A One Doc assessor opens your file looking for one consistent income story. For a tradie with mixed income, that story has three parts: the trading entity (your ABN), the income evidence (BAS or accountant's letter), and the bank account that catches the deposits. If the subbie invoices and the sole trader jobs all funnel through the same ABN and the same trading account, the assessor sees one revenue figure and one borrower. If the streams sit in two different entities — say, the subbie work in a sole trader ABN and the direct jobs through a partner's name — the file becomes two part-time incomes that neither channel handles cleanly.

What the BAS actually proves

Your turnover on a recent BAS is the anchor most One Doc lenders use for tradies. Two or four quarters of consistent BAS lodgements show the assessor that the income figure on the declaration isn't pulled from thin air. The trick with mixed income is that BAS doesn't break down "subbie work" vs "direct jobs" — it just shows GST-inclusive sales. So a tradie running both streams through one ABN gets a single BAS turnover line that reads exactly the same as a tradie doing one type of work. That's the goal: invisible mix.

Where mixed income trips up the file

Mixed income trips the file when the second stream isn't on the books. Cash-paid weekend jobs that never hit the BAS aren't income to a lender — they're noise. Subbie payments into a personal account instead of the business account create a deposit pattern the assessor can't reconcile. And if you've recently incorporated a company for the subbie work but kept the direct jobs in a sole trader ABN, you've split your revenue across two entities and the One Doc lender has to pick one to underwrite. They'll pick the smaller one and ignore the rest.

What stalls a mixed-income One Doc file

  • Sole trader cash work that never appears on a BAS or in the business account
  • Subbie invoices paid into a personal account instead of the trading account
  • Two ABNs (e.g. company for subbie work, sole trader for direct jobs) with no consolidating tax return
  • An accountant who only handles one entity and can't sign a declaration covering both income streams
  • Recent restructure (sole trader → company in the last 6 months) with no continuous BAS history under either entity

When mixed income actually helps the file

A clean mix is often a stronger story than a single stream. A tradie who subbies three days a week for a stable builder and runs direct work the other two days has built-in income diversification. If one channel slows — the builder pauses a job, or direct work goes quiet over winter — the other usually compensates. One Doc assessors who price for risk read this kind of file as more resilient, not less, provided both streams are visible on the same BAS and the same accountant can attest to the total figure.

The accountant's declaration on a mixed file

Why the accountant has to know about both streams

If your accountant only sees the subbie invoices because that's the only entity they're engaged for, the declaration they write will only cover that income. Half your story disappears. Before you go anywhere near a One Doc application, brief your accountant in writing on every revenue stream — subbie work, direct jobs, any side equipment hire, anything. The accountant's letter that supports a One Doc deal is a single number, but that number has to reflect everything they can substantiate. If they can only substantiate the subbie work, the loan size shrinks to match.

What "consistent" looks like over 12 months

Consistency on a mixed file means the ratio between streams doesn't whip around quarter to quarter. A tradie whose BAS shows roughly 60% subbie / 40% direct work for four straight quarters reads as a stable trader. A tradie whose mix swings from 90/10 to 30/70 and back reads as a business in flux, even if total turnover is identical. The fix isn't to engineer the ratio — it's to be ready to explain the swing in plain English (won a long contract, lost a long contract, took on a second site) so the assessor doesn't have to guess.

Director vs sole trader treatment

If you trade through a Pty Ltd company for your subbie work, you're a director drawing a wage or director's fee — that gets treated as income from your own business, not PAYG. If you also run sole trader work, that's profit before tax. One Doc lenders generally want both rolled into a single declared income figure and signed off by one accountant. Where it gets tricky is when the company has retained earnings that you haven't drawn — those sit on the company balance sheet and don't read as personal income for serviceability. Trust structures add another layer that an experienced broker should walk you through before submission.

Mid-application tradies: if you've already got a One Doc enquiry running and the lender has come back asking about the second income stream, the fix is usually a refreshed accountant's letter that explicitly references both. Read our 5 mistakes tradies make on a One Doc home loan before you reply to the assessor — mixed income is often the unspoken problem inside one of those five.

Stacking the file: existing tradie debt and the home loan

How ute and tool finance changes the read

A mixed-income One Doc file already has more variables than a single-stream one, and stacking existing tradie debt on top compresses borrowing capacity further. A chattel mortgage on the work ute, a business line of credit for materials and a tool-finance facility are all visible commitments. They reduce the home loan amount the assessor will support, even if cashflow easily covers them all. The order you set things up matters — read how existing ute and equipment debt affects your One Doc servicing before you sign anything new.

Spousal income and the joint application

If your partner is on PAYG with regular payslips, adding them to the application changes the channel entirely — many One Doc products allow a primary self-employed borrower with a PAYG co-borrower, and the PAYG income is verified the standard way. For a mixed-income tradie, this often unlocks a meaningfully larger borrowing figure because the PAYG side is treated with full-doc certainty. The trade-off is that both names go on the loan and both serviceability profiles are scrutinised.

When to escalate to a full-doc submission

Not every mixed-income tradie needs One Doc. If you have two completed financial years through the same trading entity, with both streams visible across both years, a full-doc submission may give you better pricing than One Doc. The reason to stay on One Doc is usually one of three: a recent restructure that breaks the two-year rule, a known mismatch between declared profit and actual cashflow (common when accountants depreciate hard), or simply the speed of a One Doc decision when the home purchase is time-pressured.

Mixed income isn't the problem. Mixed income with two ABNs, two accountants, and one stream off the books is the problem.

One trading entity, one accountant, one declared income figure that captures every revenue stream — that's what a One Doc lender wants to see from a tradie running both subbie work and direct jobs in 2026.

FAQ — Mixed-income tradies and One Doc home loans

Yes, when both income streams are visible through the same trading entity and supported by the same accountant. A One Doc lender will accept a single declared income figure that covers both your subbie invoices and your sole trader jobs, provided one accountant can sign off the total. If the streams sit in two different entities or one is undeclared cash, the file usually stalls. Read the One Doc Home Loan page for the full eligibility picture.
Mixed income doesn't hurt the application — invisible mixed income does. A clean mix where every revenue stream lands on the same BAS and is captured in the accountant's declaration is often read as more resilient than a single-stream file. A mix where part of the income is paid in cash and never hits the books is what reduces serviceability, because it can't be declared. The fix is on the books, not on the application form.
Most One Doc lenders look for at least 12 months of consistent trading through the entity that captures both streams, evidenced by 2 to 4 quarters of BAS. If you've recently restructured or shifted income from one ABN to another in the last 6 months, the lender may discount the second stream until there's a longer track record. The number isn't fixed — it's a function of how readable your books are. Our northern Melbourne tradie checklist walks through what consistent trading looks like in practice.
Yes. Many One Doc products allow a self-employed primary borrower to be paired with a PAYG co-borrower, and the PAYG income is verified through standard payslip and employer-letter channels. This usually increases the borrowing figure meaningfully because the PAYG side carries full-doc certainty while the self-employed side carries One Doc declaration. Both names go on the loan, and both serviceability profiles are assessed. The Tradie Hub covers the joint-application route in more detail.
You can, but most One Doc lenders treat the new entity as having no trading history until BAS lodgements accumulate under it. If your subbie work has just moved into a Pty Ltd and your sole trader work is still under the old ABN, you've created a gap that the assessor has to bridge. Some lenders will accept continuity if the same accountant attests that the underlying business hasn't changed, but the safer move is to time the restructure either well before or well after a home loan application — not in the same quarter. Read our One Doc + ATO payment plan post for an adjacent scenario where timing matters.

For broader context on the supporting facilities a tradie usually has running alongside a One Doc home loan — utes, equipment, working capital — the Tradie Loan Pack is the single best summary of how the lanes interact.

For background on how the ATO categorises business income across BAS and PAYG channels — relevant when an accountant builds the declaration — see ATO: Business Activity Statements (BAS).

Nick Lim

Nick Lim

Broker, Switchboard Finance

0412 843 260 · hello@switchboardfinance.com.au

FBAA FBAA Accredited
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