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Partnership Tax Return 2019 (NAT 0659), page 1
Complex · 77/100Form Complexity Index

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What this form asks for

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The Partnership Tax Return 2019 (NAT 0659) is an official Australian Taxation Office (ATO) form that partnerships must lodge to report their business income, expenses, deductions, foreign income, and the distribution of net income or loss to each partner. It is a critical compliance document required under the Income Tax Assessment Act 1936 and 1997, ensuring that each partner's share of income is correctly identified and assessed. The form covers business and professional items, capital allowances, overseas transactions, personal services income, and key financial information. Today, this form can be filled out quickly and accurately using AI-powered services like Instafill.ai, which can also convert non-fillable PDF versions into interactive fillable forms.
Fillable fields2799
Pages16
Sections34
Questions that depend on earlier answers105
Form Complexity IndexComplex, 77/100

The AI checks your answers before you download

16 checks built for this form, so a wrong date or a missing answer is caught before anyone else sees it.

Partnership Tax File Number (TFN) Format Validation

Validates that the partnership's TFN entered across the three part fields (Part 1, Part 2, Part 3) combines to form a valid 8 or 9-digit numeric Australian Tax File Number with no alphabetic or special characters. The TFN is a critical identifier used by the ATO to match the return to the correct partnership records. If the TFN is missing, incorrectly formatted, or fails the ATO's modulus-11 check digit algorithm, the return may be delayed, misallocated, or rejected, potentially resulting in penalties for late lodgement.

Australian Business Number (ABN) Format and Check Digit Validation

Validates that the ABN entered across the four digit blocks (parts 1–4) forms an 11-digit numeric value and passes the ATO's standard ABN check digit algorithm (subtract 1 from the first digit, then apply weighted sum modulus 89). An invalid or missing ABN can prevent the ATO from correctly identifying the partnership entity and may trigger compliance reviews. This check applies both to the partnership's own ABN on page 1 and to any partner company or trust ABN entered in the Statement of Distribution.

Specified Income Period Date Range Logical Consistency

Validates that the 'From' date (day, month, year) is earlier than or equal to the 'To' date (day, month, year) when a part-year or approved substitute period is specified, and that both dates fall within a plausible range (e.g., the 'To' year does not exceed 2019 for this return). Each date component must also be individually valid — day between 1 and 31, month between 1 and 12, and the combination must represent a real calendar date (e.g., not 31 February). An invalid or reversed date range would make the return period indeterminate and could cause the ATO to reject or query the submission.

Partnership Name Completeness and Character Format Check

Validates that at least one line of the partnership name field is populated and that all entered characters are printable alphanumeric or standard punctuation characters consistent with a legal entity name. The partnership name must not be left entirely blank, as it is a mandatory identifier on the return. If the partnership name has changed since the last return, the previous name field must also be populated to allow the ATO to reconcile the change; if no name change has occurred, the previous name field should remain blank.

Current Postal Address Completeness and Australian Postcode Format

Validates that the current postal address includes at minimum Address Line 1 and either a valid Australian suburb/town with a 4-digit numeric postcode and a recognised state/territory abbreviation (ACT, NSW, NT, QLD, SA, TAS, VIC, WA), or a country name if the address is outside Australia. The state/territory and postcode fields are conditionally required only when the country is Australia; if a non-Australian country is entered, the state/territory and postcode fields should be left blank. An incomplete or incorrectly formatted postal address will prevent the ATO from delivering correspondence to the partnership.

Mutually Exclusive 'Other Attachments' Checkbox Selection

Validates that exactly one of the 'Have you attached any other attachments? — Yes' or 'No' checkboxes is selected, and that both are not simultaneously checked or both left blank. This is a required binary question on the return and leaving it unanswered or double-marking it creates an ambiguous submission. If 'Yes' is selected, the system should also verify that the full Tax File Number field is populated as indicated by the conditional fill rule associated with that response.

And 10 more checks
  • Business Status Checkbox Mutual Exclusivity (B1, B2, B3)
  • Net Income/Loss Arithmetic Consistency Check (Item 15 vs Items 5–14)
  • Total Assets Must Be Greater Than or Equal to Total Current Assets
  • Partner Date of Birth Validity Check
  • Partner Identification Completeness — Individual vs Non-Individual Mutual Exclusivity
  • Statement of Distribution Partner Income Shares Sum to Total Net Income
  • Internet Sales Question Mandatory Response Validation
  • Tax Agent Declaration Completeness When Agent Lodges Return
  • Overseas Transactions and International Dealings Schedule Conditional Requirement
  • Opening Stock, Purchases, and Closing Stock Arithmetic Consistency with Cost of Sales

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How to Fill Out NAT 0659 Online for Free in 2026

What the AI walks you through.

  1. Navigate to Instafill.ai and upload or select the Partnership Tax Return 2019 (NAT 0659) form to begin filling it out online.
  2. Enter the partnership's identifying information, including the full partnership name, Australian Business Number (ABN), Tax File Number (TFN), current postal address, and contact partner details.
  3. Complete the business information section by describing the main business activity, entering the industry code, indicating business status (commenced, ceased, or multiple businesses), and answering questions about internet sales and consolidation status.
  4. Fill in all income and expense sections, including business income and expenses (Items 5–6), partnerships and trusts distributions (Item 8), rent, interest, dividends, and other Australian income (Items 9–15), as well as deductions and foreign income (Items 16–24).
  5. Complete the business and professional items section (Items 36–49), including business address, opening and closing stock, trade debtors and creditors, salary expenses, capital allowances, and small business entity depreciation details.
  6. Complete the Statement of Distribution (Item 51) for each partner, providing their full name, TFN or ABN, residential and business addresses, date of birth, and their respective shares of income, credits, and offsets.
  7. Review all entries for accuracy, ensure all required attachments are included, then have a partner sign the Taxpayer's Declaration (or have the tax agent complete the Tax Agent's Declaration) before lodging the return with the ATO.

Common Mistakes in Completing NAT 0659

The ones the AI is built to catch.

Entering an incorrect or transposed Tax File Number (TFN) or ABN
People frequently transpose digits or enter an outdated TFN/ABN when completing the partnership identification fields. Because the TFN and ABN are split across multiple separate character boxes (three groups for TFN, four groups for ABN), it is easy to misalign digits between groups. An incorrect TFN or ABN can cause the ATO to be unable to match the return to the correct entity, leading to processing delays or incorrect assessments. Always verify the TFN and ABN against the partnership's official ATO correspondence before entering, and use a tool like Instafill.ai to auto-populate and validate these numbers to prevent transposition errors.
Failing to report the partnership name exactly as registered
A common mistake is entering the partnership name in a slightly different format than what is registered with the ATO — for example, abbreviating 'and' to '&', omitting punctuation, or using lowercase letters instead of BLOCK LETTERS. The form requires one character per box in BLOCK LETTERS, and any deviation from the registered name can cause a mismatch in ATO records. This can result in the return being linked to the wrong entity or requiring manual correction. Always cross-check the partnership name against the ABN registration on the ABN Lookup website, and ensure every character is entered in the correct box using capital letters only.
Not completing the previous name or previous address fields when required
When the partnership name or postal address has changed since the last return, many filers leave the 'Previous name of partnership' or 'Postal address on previous tax return' fields blank, or vice versa — they fill them in even when nothing has changed. The instructions are clear: the previous name must be printed exactly as shown on the last return lodged only if the name has changed, and the previous address must be completed only if the address has changed. Failing to follow these rules can cause confusion in the ATO's records and may trigger unnecessary correspondence. Carefully read the conditional instructions for each field before completing or leaving it blank.
Incorrectly selecting or omitting the business status labels (B1, B2, B3)
Item 2 requires filers to mark only the first applicable status among B1 (Multiple business), B2 (Ceased business), and B3 (Commenced business), or leave it blank if none apply. A frequent error is marking more than one of these boxes, or marking B3 (Commenced business) when the business actually ceased, or leaving the field blank when a status does apply. Selecting the wrong status can affect how the ATO processes the return and may trigger unnecessary audits or reviews. Read the instructions carefully to determine which label — if any — is the first applicable option, and mark only that single box.
Omitting or incorrectly entering the industry code
Many filers leave the industry code (Item 1, label A) blank or enter an incorrect code that does not accurately reflect the partnership's main business activity. The industry code is a specific numeric classification that must be sourced from the ATO's industry code list in the Partnership tax return instructions 2019. Using the wrong code or leaving it blank can affect statistical reporting and may flag the return for review. Always refer to the instructions or the ATO website to find the correct industry code for the partnership's primary activity, and double-check that the code entered matches the description provided.
Incorrectly reporting income and expenses in the wrong labels at Item 5
Item 5 (Business income and expenses) has separate columns for primary production and non-primary production, and multiple specific labels (e.g., gross payments where ABN not quoted, assessable government industry payments, cost of sales, depreciation). Filers often enter amounts in the wrong label — for example, putting all income under 'Other business income' instead of correctly categorising it, or omitting the reconciliation adjustments at labels A and B. Misclassification can result in incorrect net income calculations and potential penalties. Carefully read the instructions for each label and ensure amounts are categorised correctly; AI-powered tools like Instafill.ai can help map income and expense categories to the correct labels.
Failing to complete the Statement of Distribution (Item 51) for all partners
The Statement of Distribution must be completed for every partner, including their full name, TFN or ABN, date of birth, address, and their individual share of income, credits, and offsets. A common mistake is completing the distribution for only some partners, omitting partner TFNs (even though it is not an offence, it can cause delays), or entering the trust name instead of the trustee's name (the form specifically requires the trust name, not the trustee's name, when the partner is a trustee). Incomplete distribution statements can delay partner assessments and cause mismatches. Ensure every partner section is fully completed and that shares of income across all partners add up to the total partnership income.
Entering dollar amounts with cents instead of whole dollars only
Item 5 (Business income and expenses) explicitly states 'WHOLE DOLLARS ONLY', yet many filers enter amounts including cents (e.g., $12,345.67 instead of $12,346). Other items throughout the form use '.00' fields indicating cents should be entered as zero. Entering cents in whole-dollar fields can cause calculation errors and may result in the return being rejected or requiring amendment. Always round amounts to the nearest whole dollar for fields marked 'WHOLE DOLLARS ONLY', and enter '.00' in the cents portion of fields that display a decimal point.
Not answering the overseas transactions and thin capitalisation questions correctly (Items 29 and 30)
Items 29 and 30 require specific Yes/No answers about overseas transactions, dealings with international related parties, thin capitalisation, and personal services income. Filers often skip these questions or answer 'No' without properly considering whether any transactions meet the thresholds (e.g., the $2 million aggregate threshold for international related party dealings). Failing to answer 'Yes' when required and attach the International dealings schedule 2019 can constitute a false or misleading statement, which carries heavy penalties under tax law. Review all overseas transactions and related party dealings carefully against the thresholds specified in the instructions before answering these questions.
Leaving the taxpayer's declaration unsigned or signed by a non-partner
The taxpayer's declaration at the end of the return must be signed by a partner — not by an accountant, bookkeeper, or other representative (who has a separate tax agent declaration). A common mistake is having the tax agent sign the taxpayer's declaration, or leaving it unsigned altogether, which renders the return invalid. The declaration confirms that all information is true and correct, and an unsigned return will not be accepted by the ATO. Ensure a partner reviews the completed return and personally signs and dates the taxpayer's declaration before lodgement.
Incorrectly handling the interposed entity election status
The interposed entity election section requires filers to enter the earliest income year if an existing or new election applies, or to print 'R' and attach the Interposed entity election or revocation 2019 form if revoking an election. Many filers leave this section blank when an election exists, enter the wrong income year, or forget to attach the required form when making or revoking an election. This can result in the election not being recorded or revoked correctly, with significant tax consequences for the partners. Consult the Partnership tax return instructions 2019 and any prior election documentation to ensure this section is completed accurately.
Not recording the correct partner type (individual vs. non-individual) in the Statement of Distribution
For each partner in Item 51, filers must choose between the INDIVIDUAL section (with surname, given names, TFN, and date of birth) and the NON-INDIVIDUAL section (with entity name and ABN). A frequent error is completing the individual section for a corporate partner or trust, or entering the trustee's personal name instead of the trust name. The form specifically states that if the partner is a trustee (including a trustee company), the name of the trust — not the trustee — must be shown. Misidentifying the partner type can cause ATO records to be incorrectly updated and may delay the processing of partner assessments. Carefully identify each partner's legal status before completing their section.

Frequently Asked Questions About NAT 0659

 

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How does the AI fill out NAT 0659?
You answer a few questions in plain words, or upload your W-2 or last year's return. The AI reads what you give it and puts each answer into the right field of NAT 0659, on every page, in seconds. It checks the answers against the form's own rules, and you review and change anything before you download, print or sign.
What happens to my information?
It is encrypted in transit and at rest, and it is never used to train AI.
How complex is NAT 0659 to fill out?
NAT 0659 has a Form Complexity Index of 77 out of 100, in the complex tier: 2799 fillable fields across 16 pages. Instafill.ai's AI fills it in under a minute, with every field there for you to review before you download.
What is the Partnership Tax Return 2019 and who needs to lodge it?
The Partnership Tax Return 2019 (NAT 0659) is an Australian Taxation Office (ATO) form that must be lodged by all partnerships operating in Australia for the 2018–19 income year. It reports the partnership's income, deductions, and distributes net income or loss to each partner, who then includes their share in their individual tax returns.
What information do I need to complete the Partnership Tax Return 2019?
You will need the partnership's Tax File Number (TFN), Australian Business Number (ABN), current postal address, details of all partners (including their TFNs or ABNs, addresses, and dates of birth), business income and expense figures, details of any foreign income, and key financial information such as total assets and liabilities. You should also have the Partnership tax return instructions 2019 available from ato.gov.au to help complete the form accurately.
How should I fill in the Partnership Tax Return 2019 form?
The form must be completed using a black pen, printed clearly in BLOCK LETTERS with one character per box. Place an X in all applicable checkboxes. All dollar amounts should be entered in whole dollars only. If completing a paper version, follow the character-box format carefully as shown in the example on page 1 of the form.
What is the Statement of Distribution (Item 51) and why is it important?
The Statement of Distribution records each partner's share of the partnership's income, credits, and other amounts for the income year. It must include each partner's full name, TFN or ABN, address, date of birth, and their allocated shares of primary production income, non-primary production income, franking credits, and other relevant amounts. This information is essential because each partner uses it to complete their own individual tax return.
Do I need to provide Tax File Numbers (TFNs) for all partners?
While it is not an offence to omit TFNs, providing them helps the ATO correctly identify each partner's tax records and reduces the risk of delays or errors in assessments. The ATO is authorised under the Income Tax Assessment Acts 1936 and 1997 to request TFNs. If a partner is a company or trust, their ABN can be provided instead.
What do I do if the partnership name or postal address has changed since the last tax return?
If the partnership name has changed, print the previous name exactly as it appeared on the last tax return lodged in the 'Previous name of partnership' field. If the postal address has changed, enter the new current address in the 'Current postal address' section and record the old address in the 'Postal address on previous tax return' section, again exactly as it appeared on the last return.
What is an Interposed Entity Election and when do I need to complete one?
An Interposed Entity Election allows partners to specify an income year for certain tax arrangements. If partners have an existing election, write the earliest income year specified. If making new elections, write the earliest income year and complete a separate 'Interposed entity election or revocation 2019' form for each election. If revoking an election, print 'R' in the relevant box and attach the completed revocation form.
What is Personal Services Income (PSI) and how does it affect the partnership return?
Personal Services Income (PSI) is income earned mainly from an individual's personal skills or efforts. If the partnership's income includes an individual's PSI, you must answer the PSI questions at Item 30, including whether the results test was satisfied, whether a PSB determination is held, and which personal services business tests apply. The total PSI amounts and related deductions must also be reported.
Does the partnership need to report overseas transactions or foreign income?
Yes, if the partnership had overseas transactions, foreign income, or dealings with international related parties exceeding $2 million in aggregate, you must complete and attach an International Dealings Schedule 2019. You must also answer questions about overseas branch operations, interests in foreign trusts or companies, and whether thin capitalisation provisions applied.
Who must sign the Taxpayer's Declaration on the Partnership Tax Return?
The Taxpayer's Declaration must be signed by a partner of the partnership. By signing, the partner declares that all information on the return, including attached schedules and documents, is true and correct. The declaration also notes that heavy penalties apply under income tax law for false or misleading statements.
Can I use AI tools like Instafill.ai to help fill out the Partnership Tax Return 2019?
Yes, AI-powered services like Instafill.ai can help you fill out the Partnership Tax Return 2019 accurately and efficiently. Instafill.ai uses AI to auto-fill form fields based on the information you provide, saving time and reducing the risk of errors. This is especially helpful given the large number of fields and character boxes in this form.
How can I fill in the Partnership Tax Return 2019 online using Instafill.ai?
To fill in the form online using Instafill.ai, visit instafill.ai and upload the Partnership Tax Return 2019 PDF. The AI will guide you through each section, auto-filling fields with your partnership's details, income, deductions, and partner information. Once complete, you can review, download, and print the filled form ready for lodgement with the ATO.
What if the Partnership Tax Return 2019 PDF is not fillable or interactive?
If you have a flat, non-fillable PDF version of the Partnership Tax Return 2019, Instafill.ai can convert it into an interactive fillable form. Simply upload the PDF to Instafill.ai and the platform will make all fields editable so you can type directly into the form, rather than having to print and handwrite your answers.
What is the 'Final Tax Return' option and when should I select 'Yes'?
The 'Final Tax Return' option should be marked 'Yes' if this is the last tax return the partnership will lodge — for example, if the partnership has been dissolved or has ceased to exist. If the partnership is continuing, mark 'No'. This helps the ATO update its records accordingly.
Where can I find the instructions to help complete the Partnership Tax Return 2019?
The Partnership tax return instructions 2019 are available on the ATO website at ato.gov.au. These instructions provide detailed guidance on how to complete each item in the return, including explanations of income types, allowable deductions, industry codes, and how to handle special circumstances such as foreign income or personal services income.
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Other forms like this one

partnership forms: Form 1065, U.S. Return of Partnership Income, Form 8865, Return of U.S. Persons With Respect to Certain Foreign Partnerships, Form 1065, U.S. Return of Partnership Income, Form FL-107, Petition—Marriage/Domestic Partnership, Form 1065, U.S. Return of Partnership Income, Form FL-100, Petition—Marriage/Domestic Partnership (Family Law), Form 1065, U.S. Return of Partnership Income, Partnership HealthPlan of California Doula Application, Form FL-120, Response—Marriage/Domestic Partnership (Family Law)

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